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PLOS One logoLink to PLOS One
. 2021 Sep 27;16(9):e0257691. doi: 10.1371/journal.pone.0257691

The experience of being a mother with end stage renal disease: A qualitative study of women receiving treatment at an ambulatory dialysis unit

Miriam Álvarez-Villarreal 1,#, Juan Francisco Velarde-García 2,*,#, Cristina García-Bravo 3,#, Pilar Carrasco-Garrido 4,#, Carmen Jimenez-Antona 5,#, Paloma Moro-Lopez-Menchero 5,#, Domingo Palacios-Ceña 5,#
Editor: Frank JMF Dor6
PMCID: PMC8476019  PMID: 34570806

Abstract

Background

End-stage kidney disease (ESKD) has considerable effects on the quality of life, impairing daily activities and leading to lifestyle changes. The purpose of this study was therefore to explore the experience of motherhood and taking care of children in women with ESKD.

Methods

A qualitative exploratory study was conducted based on an interpretive framework. Participants were recruited using non-probabilistic purposeful sampling. In total, 14 women with ESKD were included, who were treated at the dialysis unit of a Spanish hospital. In-depth interviews (unstructured and semi-structured interviews) and researchers’ field notes were used to collect the data. A systematic text condensation analysis was performed. The techniques performed and application procedures used to control trustworthiness were credibility, transferability, dependability, and confirmability.

Results

Three themes emerged from the data. “Coping with being a mother” described how women are faced with the decision to become mothers and assess the risks of pregnancy. The second theme, called “Children and the experience of illness”, highlighted the women’s struggle to prevent the disease from affecting their children emotionally or disrupting their lives. The third theme, “Fear of genetic transmission”, was based on the women’s fear of passing the disease on to their children.

Conclusions

Deciding to become a mother and taking care of children represents a challenge for women with ESKD, coupled with the losses in their lives caused by the disease. These findings are only relevant to women on dialysis.

Introduction

Chronic kidney disease (CKD) is defined as the presence of alterations in renal structure or function for at least three months, causing numerous health implications [1]. The diagnosis of CKD is based on markers of kidney damage or a reduction in estimated glomerular filtration rate (eGFR) below 60 ml/min/1.73 m2 [2].

A significant percentage of the population suffer from CKD, which is related to highly prevalent phenomena or diseases, such as ageing, arterial hypertension, diabetes, cardiovascular disease, autoimmune disease or genetic renal disease [3]. The global prevalence of CKD is around 60–80 cases per 100,000 individuals in Europe and the USA. It is estimated that more than 10% of the world’s population suffers from some degree of CKD [4]. CKD is an irreversible and progressive disease. Once the lesion occurs, renal function progressively deteriorates with the likelihood of progressing to functional loss [5]. The most severe manifestation of CKD is ESKD, which has been increasing in incidence and prevalence for the past two decades [6].

Once the kidneys fail, it is necessary to start renal replacement therapy (RRT) to help replace their functions. Dialysis is an artificial therapeutic procedure for the removal of toxic substances in the blood and excess water [7]. Several modalities of dialysis exist; hemodialysis (HD) performed at a hospital or dialysis center, home HD and peritoneal dialysis (PD). The latter two are more flexible than HD as they can be adjusted to the patient’s schedule and activities. Patients who receive home dialysis only have to go to the hospital every 1 or 2 months for check-ups. Furthermore, the equipment the individual needs is delivered regularly to the home, whereas in the case of HD, the patient has to adapt to the schedules established by the hospital and has to travel to undergo each treatment [7]. Renal transplantation allows for RRT withdrawal. and enables the patient’s physiology to more closely return to the pre-ESKD state [8]. The duration with RRT until transplantation is variable, between 3 and 5 years [9].

In women, ESKD has profound implications for global health and constitute a significant and growing proportion of the dialysis population worldwide [10, 11]. End stage renal disease can affect women during their most fertile years, aggravating the burden of their disease in many cases due to the devastating loss of pregnancy. Thus, pregnancy becomes a difficult prospect for these women [12]. The inability to achieve a successful pregnancy is deeply traumatic for women with ESKD and has detrimental consequences on their identity, relationships, and emotional well-being [13]. Decision-making in relation to future pregnancy requires women to face uncertainties about their own survival, disease progression, infant health outcomes and genetic transmission [14]. In addition, women feel a responsibility towards the health of their partners, children, and other family members [15]. Maternity is associated with several common fears, including the transmission of hereditary kidney disease to children and the inability to survive or be well enough to care for children [16]. In addition to managing their RRT, women with ESKD under dialysis treatment try to focus on fitting everything in, maintaining ties between family members, remaining present in the lives of their children and partner, and not losing the connection to their family and social life, and striving for normality [17].

The experience of having kidney disease is highly individual, and qualitative research can provide a more holistic view that may be more meaningful to health care professionals [18]. Previously, qualitative studies have been used to describe the beliefs, values, and experiences of pregnant women with advanced stages of CKD [19]. Also, further qualitative, and quantitative studies are needed to support the provision of counselling for patients, families, and health professionals on this topic [20]. The purpose of this study was therefore to explore the experience of motherhood and taking care of children among women with ESKD.

Materials and methods

Study design

A qualitative exploratory study was conducted based on an interpretive framework [18]. This study was conducted according to the Standards for Reporting Qualitative Research (SRQR) [21].

Ethics

The study was approved by the Local Ethical Committee of Universidad Rey Juan Carlos (code: 2806201711017), and the Clinical Research Ethics Committee at Hospital Universitario Puerta de Hierro Majadahonda (code:11.17). All participants provided oral informed consent prior to their inclusion.

Research team

Prior to the study, the researchers’ positioning was established via two briefing sessions addressing the theoretical framework for this qualitative study, their beliefs, and their motivation for the research [18]. Seven researchers (five women) participated in this study, including three nurses (MAV, JFVG, DPC), one occupational therapist (CGB), one pharmacologist (PCG), and two physiotherapists (CJA, PMLM). All researchers had experience in research in health sciences.

Participants, context, and sampling strategies

The study included women with CKD attending the Ambulatory Dialysis Unit at the hospital belonging to the public health system of Madrid (Spain). The inclusion criteria were: (a) women, (b) over the age of 18, (c) with ESKD, d) diagnosed with CKD stage 5 (kidney failure- FGR < 15 ml/min/1,73 m2), following the criteria of Kidney Disease Improving Global Outcomes (KDIGO) [1, 22]. and (e) women who are receiving or have received RRT. In the present study, the inclusion criteria included women who required RRT and who finally received renal transplantation. The exclusion criteria were: (a) acute kidney injury (AKI) requiring HD, (b) serious psychiatric or cognitive disorders, (c) inability to communicate in Spanish or provide informed consent.

Purposive sampling was used, based on relevance to the research question (not clinical representativeness) [18]. Sampling and data collection were pursued until the researchers achieved information redundancy, at which point no new information emerged from the data analysis [18].

Data collection

Data were collected over a seven-month period between October 2017 and April 2018. After collecting professional and personal data from each woman, the first stage of data collection consisted of unstructured interviews, using open questions, such as: What is your experience with CKD and being a mother and taking care of your children? The second stage consisted of semi-structured interviews to obtain information regarding specific topics of interest [18]. The questions were developed based on accounts obtained from the women. Open-ended follow-up questions were also used to obtain the detailed descriptions, including the following: 1, “Do you consider that ESKD has changed your life?”; 2, " How was it when you were diagnosed with ESKD, what was the most relevant issue for you?”; 3, "What challenges have you faced being a mother and/or caring for your children having ESKD?"; 4, “What are the most relevant changes that have taken place in your family life?”; 5, "Do you think the disease has impacted your family, and your children?, If so, how?”; 6, Can you describe your emotional experience of being a mother and having ESKD in a single sentence? Additionally, “Please tell me more about that”, was also used during all the interviews (if needed) to enhance the depth of the discussion of a specific topic. During the interview, at the women’s request, it was clarified that when they were asked about the care of their children during RRT, this included both the care provided to the infants and the daily care that the woman provided to the remaining children she already had.

The interviews were conducted by MAV, DPC, and JVG. The interviews were audio-recorded and transcribed verbatim. A total of 14 interviews were conducted (one per woman). Overall, 929 min of interviews were recorded, with 348 min corresponding to the first stage and 581 min corresponding to the second stage. Each of the first-stage interviews lasted between 20 and 40 min (mean duration: 30 min), whereas the second stage interviews lasted between 25 and 60 min (mean duration: 42.5 min). All interviews were conducted at the women’s homes or in a private hospital room, according to the women’s preference. Fourteen researcher field notes were also collected. The researcher field notes provided a rich source of information as participants described their personal experiences, their behavior during data collection, and enabled them to note their reflections concerning methodological aspects of the data collection [18]. During data collection nobody else was present besides the participants.

Data analysis

Complete verbatim transcripts were produced for each of the interviews. The analysis was conducted by MAV, DPC, and JVG. The initial results were subsequently merged in joint sessions, during which data collection and analysis procedures were discussed. In the case of differences of opinion, theme identification was decided by consensus. A systematic text condensation analysis was performed [23].

Systematic text condensation (STC) is an elaboration of Giorgi’s principles (follower of Husserl) [24], including four comparable steps of analysis. In this descriptive approach, presenting the experience of the participants as expressed by themselves, and following Giorgi, STC represents an explorative proposal to present vital examples from peoples’ life worlds [23]. Also, like Giorgi’s method, STC implies analytic reduction with decontextualization and recontextualization of data. The procedure consists of the following steps [23]: 1) Total impression; reading all the material and an overview of the data. 2) Identifying and sorting meaning units and codes; systematically reviewing the transcript line by line to identify meaning units. A meaning unit is a text fragment containing some information about the research question. Subsequently coding begins (decontextualization), which includes identifying, classifying, and sorting meaning units and marking these with a code–a label that connects related meaning units into a code group. 3) Condensation–from code to meaning; implying the systematic abstraction of meaning units within each of the code groups established in the second step of analysis. Empirical data are reduced to a decontextualized selection of meaning units sorted as thematic code groups across individual participants. 4) Synthesizing–from condensation to descriptions and concepts; data are reconceptualized, putting the pieces together again. By synthesizing the contents of the condensates, descriptions and concepts are developed, providing stories that reflect the participants’ experiences [23]. Each of the interviews were analyzed separately, without performing any comparison between one and the other. After analyzing each interview, each researcher listed their themes and confluent and diverging issues were negotiated. Finally, in the case of different opinions, theme identification was decided by consensus. No qualitative software was used on the data.

Rigor

The techniques performed and application procedures used to control trustworthiness are described in (Table 1) [18].

Table 1. Trustworthiness criteria.

Criteria Techniques Performed and Application Procedures
Credibility Investigator triangulation: each interview was analyzed by three researchers. Team meetings were performed in which the analyses were compared, and categories and themes were identified.
Triangulation of methods of data collection: unstructured, semistructured interviews were conducted and researcher field notes were kept.
Participant validation: asking the participants to confirm the data obtained at the stages of data collection. All participants were offered the opportunity to review the audio and/or video records to confirm their experience. None of the participants made additional comments.
Transferability In-depth descriptions of the study performed, providing details of the characteristics of researchers, participants, contexts, sampling strategies, and the data collection and analysis procedures.
Dependability Audit by an external researcher: an external researcher assessed the research protocol, focusing on aspects concerning the methods applied and study design. An external researcher specifically checked the description of the coding tree, the major themes, participants’ quotations, quotations’ identification, and themes’ descriptions.
Confirmability Investigator triangulation, participant triangulation, and data collection triangulation.
Researcher reflexivity was encouraged via the performance of reflexive reports and by describing the rationale behind the study.

Results

Fourteen women with CKD were recruited. The mean age of women was 57,5 years (standard deviation, SD: 12,30), the median time from the beginning of RRT after diagnosis was 6 years (SD: 10,21). Also, regarding treatment type, 2 participants (14,3%) had peritoneal dialysis, 1 participant (7,1%) had kidney transplant, and 11 participants (78,6%) had hemodialysis. Moreover, 12 women had a partner. The mean number of children was 2,28 (SD: 1,53). See Table 2.

Table 2. Data on renal replacement therapy, and age of the children at the start of treatment.

Participant Age Type RRTa Initial RRT Time since CKDe diagnosis until beginning of RRT (years) n° offspring Age of children at start of treatment (years) Children who lived in the home of the woman with ESKDf Partner
1 63 HDb 1993 < 1 1 11 Yes No. Separated
2 33 HD 2011 3 2 1 and 3 Yes Yes
3 67 HD 2001 7 4 Not available Not available Yes
4 54 HD 2014 < 1 6 13, 18, 23, 26, 32 and 34 Yes Yes
5 64 HD 2015 < 1 2 39 and 42 No No
6 47 PDc 2014 9 2 13 and 15 Yes Yes
7 50 HD 2017 5 1 21 Yes Yes
8 56 PD 2017 16 1 30 Yes No. Separated
9 64 TxRd 2015 5 2 34 and 38 No Yes
10 46 HD 2017 < 1 2 21 and 23 Yes Yes
11 69 HD 2000 < 1 5 15, 25, 27, 29 and 31 Yes Yes
12 72 HD 2014 < 1 1 42 No Yes
13 42 HD 2017 < 1 1 16 Yes Yes
14 78 HD 2017 39 2 Not available Not available Yes

aRRT: renal replacement therapy;

bHD: hemodialysis;

cPD: peritoneal dialysis;

dTxR: kidney transplant;

eCKD: chronic kidney disease;

fESKD: end-stage kidney disease

Three specific themes emerged from the data analysed: a) Coping with being a mother, b) having children and having a chronic disease, and c) Fear of genetic transmission. We included some of the women’s narratives taken directly from the interviews in relation to the emerging themes.

Coping with being a mother

For women who have children or wish to become pregnant, having CKD means facing difficulties and making life-changing decisions. The women interviewed who already had children before starting RRT no longer considered having more children to be an option once they began treatment:

“When the disease appeared, the first thing it affected was my menstruation. Any desire to have more children or get pregnant disappeared. I had to assume that the daughters I had are the only ones I could have in this life. (P4)

“Not as a result of the illness, no. On the contrary, I asked God not to get pregnant. With this illness there would be no way, I wouldn’t know how to cope. (P6).

The women described how receiving the news from the doctor that it would be difficult to become pregnant and that the disease posed a risk to the fetus was the worst part of the illness. For some of them, it even caused problems in their relationship with their partner:

“It was the worst thing about the disease. We really wanted to have children again, but it was inevitable, there was a lot of risk at stake. My husband, when I told him, told me straight out that if he had known, he would never have married me. (P1).

Against medical advice, some women reported that their desire to become mothers was so strong that they risked their own health to try and become pregnant:

“When you want to have a baby you have to be disciplined, that was my challenge, I defied nature, I defied God because I longed to be a mother. I had the opportunity to be a mother. I am thankful because my children are a gift, I wasn’t obedient, but I had my children and I am happy. (P2).

Some women who had been on RRT (PD) for a short time, acknowledged that they did not consider motherhood, although they would like to become mothers once again in the future. They reported that they had not asked or discussed this option during medical consultations and were unaware they could or should become pregnant:

“I wouldn’t get pregnant right now, but I would like to get pregnant in the future again. (P6).

“I hadn’t thought about it, well I thought that at some point I could be a mum again. But now with everything I am going through, I have to say no”. (P8).

“To tell you the truth, I don’t really know if I can or if I should. I have never asked the doctor. (P3).

Children and the experience of illness

Our participants acknowledged that having children conditioned their experience of the disease and RRT. These women strived to ensure that their illness and its treatment would not affect their children’s lives in any way. They tried not to let their children see them when they were physically unwell, sad, or downcast. They tried to spare them of any suffering from the illness at all costs. This involved not complaining in front of them, continuing to do their homework, accompanying them to their activities, picking them up from school, despite being exhausted or feeling sick from the treatment:

“My day-to-day life is focused on my children. At least I don’t have time to get depressed.” (P2).

“My daughter would come home from school, and I still went down to pick her up many days when I was unwell, especially after dialysis. I tried to avoid getting her involved. I would put on my heels, put on my lipstick, comb my hair and even if I was a wreck inside, and I couldn’t cope with my life, I would go and pick her up, so that she wouldn’t see that I was unwell. I couldn’t get depressed. I was mentally determined that my little girl didn’t have to suffer for anything. (P1).

“Before they could see me bitter, I would tell my husband to take them out, even if I missed out on things. I didn’t want suffering or sadness to be a part of their memories. I wanted to replace these with joy, with good memories. They have that memory since they were little, of seeing mum hooked up to machines with IVs. (P5).

Many women spoke of the difficulties trying to preserve the same family dynamics from prior to beginning dialysis treatment. This represented one of the hardest things about the disease, associated with feelings of grief and pain:

“I came out of dialysis feeling very poorly and I couldn’t be with my daughter, accompany her and share the most ordinary things in life with her. When I was diagnosed with the disease, I was thinking about my daughter, who was 7 or 8 years old at the time. On a personal level it affects you a lot. (P9).

“I knew what was going to happen [as a result of the illness] with my daughter, I felt very sorry for her. My daughter has been brought up like a suitcase, here I leave you, here I let you go, here I pick you up and here I carry you. Imagine how lonely she has been since she was four. (P8).

Dialysis treatment, especially HD, limits the time women can spend with their children, preventing them from engaging in many activities, especially those outside the home, such as going out to dinner or going to the cinema:

“My children are bored, because they want to do more things with me, and I can’t because I’m on dialysis. I have missed a lot of time, all the time I have been confined to the illness, to the hospital. (P3).

“Many times, [the children will say] ’mum can we do, can we go, can…’ you go out for dinner or to the cinema or whatever and suddenly you have to give up or leave, because you have to go back and connect to your treatment”. (P6).

“Treatment means being here for 4 hours, 3 days a week I could be with my children somewhere, and I can’t because I have to be here [dialysis].”(P10).

The women described how their children, despite their efforts not to be affected by their illness, were aware of it and often avoided asking their mother directly:

“I try not to complain too much, for my children’s sake. I don’t want them to suffer and for them to see me in a bad state. I try to swallow everything I can, many things that happen to me. I try to get them to take it well, but they realize that you feel unwell. They don’t ask so that it doesn’t hurt them, but they suffer a lot. (P9).

The women participating in this study related how their children prayed or wished for a transplant for their mother as Christmas presents:

“At Christmas, there was one year when my daughter’s only request was for a transplant for her mum. Up to that point I was aware of everything. She has seen me feeling very ill. (P2)

“My children pray to God: ‘mum, may you get a new kidney so that you can go out and do things.’” (P3).

“It was New Year’s Day and at night everyone asked for a kidney for me. (P11).

Once the children have grown up, many women no longer hide the disease. On the contrary, the children become great supporters and even offer their mother the possibility of becoming their kidney donor. This option is rejected by all women:

“What I couldn’t discuss with my daughter at the time because she was a child, I now discuss with her. I don’t hide anything from her. Now, far from feeling lonely, I feel more accompanied. (P2).

“My children had all the tests for the transplant, and I said no, they could have all the tests they wanted but none of them would give me their kidney. (P11).

“It was when my children were older that I started to tell them. Their response was that they were offering me their kidney. I told them that they are young, I have already lived the life that was meant for me. To take a kidney from one of my children is unacceptable, especially when they are young.” (P14).

Fear of genetic transmission

There are a wide variety of inherited kidney diseases. Women with CKD express concern that their children may develop the disease:

“It is a very important problem and although I was told that my problem is not genetic, that it was a consequence of repeated infections, it is always present. You are conditioned, what if I pass it on to my child? (P2).

“I hope that the disease will stop with me, that it won’t be passed on to my children. I would not want my children to go through all this again, let alone suffer from it. I hope that when they have their children, this disease will stop. It is my only concern, I am afraid”. (P3).

Women reported sharing this concern with pediatricians, and how they have begun to regularly take their children to check-ups to detect the disease as early as possible:

“Because when they were born, I said to him: ’doctor, could they develop the disease? What I don’t want is for this to happen again, that’s the only thing I don’t want. (P3).

“Thank God, so far there have been no problems, at least from the tests they are undergoing, they are fine. I told the doctor who cares for my children about it and so far, the tests have shown that everything is fine. (P9).

Fear of passing on the disease and trying to spare their children the suffering that CKD and its treatment entails, leads some women to make the decision to be a mother again from the moment of the diagnosis:

I haven’t had children since. Nor am I going to have them. I decided against it when I was given the diagnosis and told that it could be inherited. I couldn’t bear to see a small child with it, especially if it’s my child. I have to suffer this but it won’t go on [in the family]. I am not going to allow the possibility of giving this to a child. (P13).

Discussion

From the moment a woman is diagnosed with CKD, she must undergo a process in which she faces a completely different reality from the one she has experienced until then. A series of important changes are implemented, together with the activation of adaptive mechanisms to the current health situation [25]. The woman is forced to change her lifestyle, changing her diet, frequent contact with the hospital environment and interruption of her daily activities, often affecting her work or studies [26]. These changes in women with ESKD affect the family, their role as the primary caregiver, medication, and the health care system [17, 27].

Gender differences exist in kidney disease [10]. Women have a higher prevalence of specific autoimmune diseases that, together with pregnancy, form a unique challenge for women at risk of CKD and AKI [10]. In addition, there is a lower proportion of women on dialysis than men, and women are less likely to undergo renal transplantation [10, 28]. Advanced-stage CKD most commonly occurs in women after childbearing age. However, the prevalence of advanced stage CKD is increasing and may affect up to 3% of women of childbearing age [29]. Menstrual disturbances as a consequence of endocrine disorders and infertility are common in women with advanced stage CKD, making conception difficult and causing significant disruptions in family planning [30]. In our study, none of them mentioned having discussed fertility issues, the risk of inheritance of the disease, or the risks of pregnancy with their doctors. Lewis & Arber [31] describe how women affected by advanced stage CKD are desperate to have a baby and stop taking "precautions", ignore medical advice to wait until the arrival of a new kidney and even say that if someone advised them that they could not have children, it would be the breaking point for them. Others prefer adoption to risking their own health and that of their baby [31]. In addition to the strong desire for being mothers, these women experience guilt for not meeting social expectations, fear of birth defects and fetal damage, emotional conflict during decision making and fears of exacerbation of the disease [14]. Tong et al., describe how women with advanced stage CKD report feelings of loss when denied motherhood, guilt about disappointing partners and family members, guilt about gambling with their health, and rationalising the health risks of pregnancy in order to pursue motherhood [14].

Women with CKD should be informed about the possibilities of pregnancy and associated risks, including fetal outcomes and maternal complications [32]. Special attention should be given to women with advanced stage CKD of childbearing age, especially young women, for whom pregnancy and childbirth are particularly challenging, helping them to deal with their reproductive dilemmas, whether they should have children, and trying to meet their reproductive needs [33]. At older ages, most women understand that the gradual loss of reproductivity is part of the "normal" ageing process [34]. The importance of pre-pregnancy counseling in women with ESKD needs to be highlighted, and the challenges that may be faced during childbearing discussed. Preconception counselling by multidisciplinary specialized teams is essential to support women in making informed, autonomous decisions, and to maximize opportunities to modify medical care to optimize outcomes if pregnancy occurs [35]. Counseling should be provided to women with ESKD and their partners at the onset of the disease, discussing aspects such as the possibility of delaying pregnancy (contraceptive use), timing of conception, control of renal disease, previous episodes of preeclampsia or AKI injury in pregnancy, possibility of prematurity of the children, possibility of low birth weight, delaying pregnancy until obtaining kidney transplantation, and the possibility of a low birth weight [10, 17, 3537]. Piccoli et al. [38], in their study on improving care in Kidney Diseases and Pregnancy, describe how it is necessary for the clinical approach to include ethical aspects of pregnancy in patients with diabetes, hypertension and immunological diseases, and the importance of taking into consideration the different cultural and religious contexts. Currently, there are still unresolved issues that women need to be informed about, such as the role of urinary tract infections, kidney stones and urinary malformations [38].

Regarding the presence of children, the main concern of women with ESKD is the disruption of mother/caregiver roles. The role of women as mothers is deeply disrupted as they feel that they neglect their children. Their limited physical abilities, lack of energy and other negative emotions associated with dialysis days strongly alter their roles as mothers, going from being a "strong" woman to a more vulnerable role [39]. Haemodialysis treatment not only has effects on parenting but also on their role as primary providers and support systems for their families. For these women, the inability to continue in their roles seems to influence them to feel a sense of loss of "who I am as a woman" [40].

The women in our study did not report the presence of conflicts between caring for their children and prioritizing their own health needs. One possible explanation for this is that our participants prioritized their children over their health, in an attempt to avoid their illness conditioning and affecting the life and future of their children at all costs. Piccoli et al. [36], described that women undergoing dialysis treatment had low levels of stress due to a phenomenon referred to by these authors as ’positive defense’ of their children. In addition, Wadd et al. [17], reported how women in ESKD with dialysis treatment struggle to care for their children and stay connected to family life, above their own health needs. These authors [17] show similar results to ours, since mothers with ESKD were reluctant to talk about their illness, particularly with their children, even if the child was scared their mother would die. They continued to present a veneer of normality, trying to stay connected with the family, solving all the problems, and attempting to prevent her illness from entering her children’s lives. Moreover, Piccoli et al. [36], identified that a robust family network was essential for reducing the impact on the psychological wellbeing of the offspring.

This study has limitations concerning generalizability. Also, gender roles should be considered when considering concealment of disease, as gender may underlie differences in disease experience and how it affects daily life, perspectives of pregnancy, fears for maternal, and foetus health, decision-making insecurities and conflicts regarding maternity and autonomy [19]. Also, it is important to consider the perspectives of the patients’ partners for a more comprehensive analysis of the impact of dialysis on motherhood. Finally, the present study has not sampled the different types of renal replacement therapy. It would be necessary to develop new studies describing the perspective of women with ESKD, focusing specifically on each of the different types of treatment. Another limitation is that the participants included in the study are patients with a high average age (57,5 years). Treatment and medical care have changed in the area of obstetric nephrology over the last 20 years [10, 37]. Intensive hemodialysis is now the standard model of care for women receiving dialysis in pregnancy, particularly if residual renal function is minimal [4143]. Thus, in women with ESKD, intensification of hemodialysis, targeting a serum blood urea nitrogen <35 mg/dL or 36 hours of dialysis per week in women with no residual kidney function, is associated with improved live birth rates and longer gestational age [43]. Hladunewich [42], and Oliverio & Hladunewich [43] concluded that pregnancy may be safe and feasible in women with ESKD receiving intensive hemodialysis. Moreover, fertility is significantly increased after kidney transplantation, and the chances of successful delivery are increased compared to women on dialysis [20]. All these changes may influence the results of the present study because there may be different perspectives between older and younger patients about the disease and its treatment [10, 37]. In the present study, no specific questions were asked to determine the perspective regarding treatment and medical care between older and younger women. In future studies, it would be necessary to include this criterion to compare and describe the perspectives and expectations regarding renal replacement therapy among women with different age groups, for example, adolescents (13–19 years), adults (20–64 years) and older women (>65 years).

Conclusions

Women with ESKD who require RRT often experience difficulties and challenges in coping with motherhood, struggling to prevent their children from being affected by their disease and expressing great concerns about the possible genetic transmission of the disease. These findings are relevant to women requiring long-term dialysis. Our results provide insight on how motherhood, and childcare are experienced by women with ESKD and may be helpful in dealing with women who suffer from dialysis treatment, and follow-ups. There is a need to develop programs that integrate health and social interventions that help women with ESKD to be able to better integrate their family life with the treatment of the disease. Finally, it should be noted that becoming pregnant, and having children while on dialysis is a major challenge for women with ESKD that has risks, however, pre-pregnancy counselling provides an opportunity to learn about the risks and challenges and enables women and their partners to make an informed decision and discuss their doubts and fears, and choose different options (assisted fertility, adoption, surrogacy). In addition, intensive dialysis has resulted in a greater likelihood of a better pregnancy outcome, and kidney transplantation can restore a woman’s fertility.

Supporting information

S1 Interview guide review

(DOCX)

Acknowledgments

We thank the participants for their kind collaboration and participation in this research study.

Data Availability

Data may be obtained from a third party and are not publicly available. All data relevant to the study are included in the article or uploaded as online supplemental information.

Funding Statement

This article has not received funding by Public or Private Institutions. We have no financial interests and we have not received direct or indirect funding.

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Decision Letter 0

Frank JMF Dor

10 Jun 2021

PONE-D-21-15320

The experience of motherhood with chronic kidney disease: A qualitative study of women receiving treatment at an ambulatory dialysis unit.

PLOS ONE

Dear Dr. García,

Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process.

Both expert reviewers have expressed interest in the study and MS, and highlight novelties described. The relevance of this study is not limited to nephrologists and dialysis teams, and extends to patients and their families. It is clear from below comments that authors should provide more clarity on the study population (and and highlight these were all women with ESKD on dialysis and not just CKD, and Tx pts were not included), the introduction should be shortened, and some of the research outcomes could be more focused as per reviewers' advice. Please revise the MS thoroughly according to suggestions as per below, and kindly answer to every comment in a point-by-point fashion. The revised MS will undergo thorough peer review again, and there is no guaranteed acceptance after revisions.

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**********

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Reviewer #1: Thank you for the opportunity to review this interesting manuscript, which explores the experience of motherhood for women with ESKD.

Unfortunately I do not have expertise in qualitative research, but to my limited knowledge the methodology is appropriate and reporting robust. I have a few suggestions about how to improve the manuscript.

I think that the focus of the study findings should be on motherhood rather than pregnancy. The novelty of this work is describing the challenges of being a parent on dialysis. I suggest that women who do not have pregnancies are not included, as they are not aligned with the study aim.

The authors need to make it clearer that these findings are relevant to women requiring long-term dialysis. They should highlight that all women had ESKD not just CKD, and women with transplants were excluded. I think the inclusion criteria could be clearer.

The introduction is too long and lacks focus – I suggest starting at Page 4 Line 12.

I was interested to note that a conflict between caring for offspring and prioritising own health needs was not identified. In my experience caring for women on HD, they frequently have to make choices about their health care which may compromise their children or vice versa. Did these women have good family support which circumvented this issue. Could current social situation / and/or situation during child-rearing years be described. Giorgina Piccoli identified that a robust family network was essential for reducing impact on offspring psychological wellbeing – this study should be discussed.

What were the mechanisms that women had to use to ensure that their children were well cared for?

What were the ages of children – currently and at time of starting dialysis.

Why was the sample selected according to the research question rather than to represent different RRT modalities, and vintage?

Page 4; line 24 -qualitative research is important to all health care professionals not just nurses!

I am unclear about how losses and limitations regarding driving, working etc is relevant to the research question – could this be discussed more in the context of motherhood – or left-out as dietary restrictions and travel is not just specific to mothers.

The discussion is succinct and well written, but should include more detail about the challenge of not accepting a kidney from offspring, and the importance of discussing motherhood challenges in pre-pregnancy counselling.

Reviewer #2: This manuscript highlights the important difficulties that women face when embarking on motherhood whilst on dialysis.

I am not personally experienced with the methodology described although it would appear comprehensive.

The title and introduction of the manuscript need to clearly state that this refers to women with end-stage kidney disease on dialysis. The importance of this distinction being that the challenges are indeed far greater in this cohort of women than in those with mild chronic kidney disease.

Page 3 line 15 to 17 - I do not understand - are the authors saying that CKD is the fifth most common cause of kidney failure after diabetes, hypertension, glomerulonephritis and pyelonephritis? These diagnoses all cause CKD! This should be deleted.

I note the mean age of the women was 54.1yrs - how old are the children / how long ago were they born? Medical care has changed hugely in the are of obstetric nephrology over the last 30 yrs - could the authors comment on whether there was a difference in the challenges faced between the older and younger cohort of women?

Conceiving / successful pregnancy / motherhood whilst on dialysis is of course hugely challenging and the themes in this paper are important to share with patients and healthcare professionals. However, it would be worthwhile giving a message of hope:

1. Prepregnancy counselling should be promoted as it gives the opportunity to inform of these risks and challenges. It empowers women and their partners in decision making and gives them the opportunity to discuss their fears. It is also an opportunity to optimise risk factors and highlight options (assisted fertility, adoption, surrogacy).

2. The data from Michelle Hladunewich and Luders et al has demonstrated intensive dialysis prescription gives a higher chance of a better pregnancy outcome and this has changed our practice in the last 5-10 years.

3. A well functioning transplant restores fertility and reduces that ESKD on dialysis poses to a pregnancy.

4. Greater awareness of the challenges faced paves the way to greater support for these women.

**********

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Reviewer #2: No

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PLoS One. 2021 Sep 27;16(9):e0257691. doi: 10.1371/journal.pone.0257691.r002

Author response to Decision Letter 0


16 Jul 2021

RESPONSE LETTER PONE-D-21-15320

Decision on Manuscript PONE-D-21-15320

Entitled: The experience of being a mother with end stage renal disease: A qualitative study of women receiving treatment at an ambulatory dialysis unit

Journal: PLOS ONE

We would like to thank the Editors and the Reviewers for their careful consideration of our manuscript. We would also like to thank the Reviewers’ suggestions, which we believe have enhanced the quality of the manuscript. We have highlighted (in yellow) all the changes we have made throughout the text. Below please find a detailed list of how we have addressed each comment.

Reviewers' Comments to Author:

REVIEWER: 1

Thank you for the opportunity to review this interesting manuscript, which explores the experience of motherhood for women with ESKD. Unfortunately I do not have expertise in qualitative research, but to my limited knowledge the methodology is appropriate and reporting robust.

Response: Thank you very much for your comments. We truly appreciate them.

I think that the focus of the study findings should be on motherhood rather than pregnancy. The novelty of this work is describing the challenges of being a parent on dialysis. I suggest that women who do not have pregnancies are not included, as they are not aligned with the study aim.

Response: We have followed the reviewer’s recommendations. We have removed participants who did not have pregnancies.

Also, we have edited the wording throughout the manuscript, and re-written the paragraphs regarding the methods and results sections.

The authors need to make it clearer that these findings are relevant to women requiring long-term dialysis.

Response: We have followed the reviewer´s recommendations. We have addressed this in the abstract section, and the conclusion section of the main manuscript.

They should highlight that all women had ESRD not just CKD, and women with transplants were excluded. I think the inclusion criteria could be clearer.

Response: Thank you very much for your comments.

New information on end stage renal disease, its relationship to CKD, and renal replacement therapies is included in the introduction.

In addition, new information on inclusion criteria is included. As the aim of this study is to describe the experience of parenting and caregiving in women with ESRD, there may be transplanted women with ESRD who can provide relevant and key information for this study. That was the reason why we included women who may have had renal transplantation.

The introduction is too long and lacks focus – I suggest starting at Page 4 Line 12.

Response: We have followed the reviewer’s recommendations. We have shortened the introduction. Moreover, the authors believe that although we reduce the introduction, it is necessary to keep some key parts of the article, because the journal PLOS One is not specialized in nephrology, and some key information such as defining what is chronic kidney disease, end stage renal disease, giving some data on its magnitude, and clarifying or defining treatments would help readers to better understand the article. Plos One journal (https://journals.plos.org/plosone/s/journal-information#loc-scope) showed that: “ PLOS ONE is an inclusive journal community working together to advance science for the benefit of society, now and in the future. Founded with the aim of accelerating the pace of scientific advancement and demonstrating its value, we believe all rigorous science needs to be published and discoverable, widely disseminated and freely accessible to all. The research we publish is multidisciplinary and, often, interdisciplinary. PLOS ONE accepts research in over two hundred subject areas across science, engineering, medicine, and the related social sciences and humanities. We evaluate submitted manuscripts on the basis of methodological rigor and high ethical standards, regardless of perceived novelty.”

I was interested to note that a conflict between caring for offspring and prioritising own health needs was not identified. In my experience caring for women on HD, they frequently have to make choices about their health care which may compromise their children or vice versa. Did these women have good family support which circumvented this issue. Could current social situation / and/or situation during child-rearing years be described. Giorgina Piccoli identified that a robust family network was essential for reducing impact on offspring psychological wellbeing – this study should be discussed.

Response: In our results, the women who participated did not report the presence of conflicts between caring for their children and prioritizing their own health needs. The authors believe that this could be explained by the fact that for them the priority was their children and they were focused on the disease not affecting them, and above all not interfering with their lives. The authors have found previous studies (Wadd et al., 2014) that point to results similar to our findings, where mothers with ESRD under dialysis treatment try to continue to resolve the family's day-to-day life struggle so that the disease does not interfere with their children's lives, making their children and family a priority.

We have included the following text in the discussion section:

The women in our study did not report the presence of conflicts between caring for their children and prioritizing their own health needs. One possible explanation for this is that our participants prioritized their children over their health, in an attempt to avoid their illness conditioning and affecting the life and future of their children at all costs. Piccoli et al [36] described that women undergoing dialysis treatment had low levels of stress due to a phenomenon referred to by these authors as 'positive defense' of their children. In addition, Wadd et al [17] reported how women in ESRD with dialysis treatment struggle to care for their children and stay connected to family life, above their own health needs. These authors [17] show similar results to ours, since mothers with ESRD were reluctant to talk about their illness, particularly with their children, even if the child was scared their mother would die. They continued to present a veneer of normality, trying to stay connected with the family, solving all the problems, and attempting to prevent her illness from entering her children's lives. Moreover, Piccoli et al [36] identified that a robust family network was essential for reducing the impact on the psychological wellbeing of the offspring.

Additionally, we have included new references:

• Piccoli GB, Postorino V, Cabiddu G, Ghiotto S, Guzzo G, Roggero S, Manca E, Puddu R, Meloni F, Attini R, Moi P, Guida B, Maxia S, Piga A, Mazzone L, Pani A, Postorino M; 'Kidney and Pregnancy Study Group' of the 'Italian Society of Nephrology'. Children of a lesser god or miracles? An emotional and behavioural profile of children born to mothers on dialysis in Italy: a multicentre nationwide study 2000-12. Nephrol Dial Transplant. 2015 Jul;30(7):1193-202. doi: 10.1093/ndt/gfv127.

• Wadd KM, Bennett PN, Grant J. Mothers requiring dialysis: parenting and end-stage kidney disease. J Ren Care. 2014 Jun;40(2):140-6. doi: 10.1111/jorc.12066.

What were the ages of children – currently and at time of starting dialysis.

Response: The authors have now included the age of the children at the start of renal replacement therapy. We would like to point out that the study is based on describing women's experience of parenting and child care. Childcare ranges from the care of newborns of mothers with ESRD who have had children during their renal replacement therapy to the care of older children who are part of the family and who live with the woman with ESRD, and where they may be influenced by having a mother with ESRD.

We included a new table 2.

Table 2. Data on renal replacement therapy, and age of the children at the start of treatment.

Participant Age Type

RRTa Initial

RRT Time since CKDe diagnosis until beginning of RRT

(years) nº

offspring Age of children

at

start

of treatment

(years)

Children who

lived in the

home of the woman

with ESRDf Partner

1 63 HDb 1993 < 1 1 11 Yes No.

Separated

2 33 HD 2011 3 2 1 and 3 Yes Yes

3 67 HD 2001 7 4 Not available Not available Yes

4 54 HD 2014 < 1 6 13, 18, 23, 26, 32 and 34 Yes Yes

5 64 HD 2015 < 1 2 39 and 42 No No

6 47 PDc 2014 9 2 13 and 15 Yes Yes

7 50 HD 2017 5 1 21 Yes Yes

8 56 PD 2017 16 1 30 Yes No.

Separated

9 64 TxRd 2015 5 2 34 and 38 No Yes

10 46 HD 2017 < 1 2 21 and 23 Yes Yes

11 69 HD 2000 < 1 5 15, 25, 27, 29 and 31 Yes Yes

12 72 HD 2014 < 1 1 42 No Yes

13 42 HD 2017 < 1 1 16 Yes Yes

14 78 HD 2017 39 2 Not available Not available Yes

aRRT: renal replacement therapy; bHD: hemodialysis; cPD: peritoneal dialysis; dTxR: kidney transplant; eCKD: chronic kidney disease; fESRD: end-stage renal disease.

We have also included the following new text in the introduction section:

In addition, women feel a responsibility towards the health of their partners, children, and other family members [15]. Maternity is associated with several common fears, including the transmission of hereditary kidney disease to children and the inability to survive or be well enough to care for children [16]. In addition to managing their RRT, women with ESRD under dialysis treatment try to focus on fitting everything in, maintaining ties between family members, remaining present in the lives of their children and partner, and not losing the connection to their family and social life, and striving for normality [17].

The data collection section has been edited as follows:

During the interview, at the women’s request, it was clarified that when they were asked about the care of their children during RRT, this included both the care provided to the infants and the daily care that the woman provided to the remaining children she already had.

We have included a new reference:

• Wadd KM, Bennett PN, Grant J. Mothers requiring dialysis: parenting and end-stage kidney disease. J Ren Care. 2014 Jun;40(2):140-6. doi: 10.1111/jorc.12066. Epub 2014 Mar 26. PMID: 24674737.

Why was the sample selected according to the research question rather than to represent different RRT modalities, and vintage?

Response: The research question was used to select the participants. In this study it was to describe the experience of parenting and child care in women with ESRD. The focus of the study was women with ESRD, regardless of the type of renal replacement therapy they had.

In qualitative research, it is accepted to include participants who suffer or live the same phenomenon (e.g. a disease) to know their individual experience and perspective (Creswell & Poth, 2018), even if they present differences in other aspects such as treatment, clinical presentation or different degrees of disability (Moser & Korstjens, 2018). Thus in this study we included women with ESRD, who could present with different renal replacement therapies, and they were chosen because they are the participants who are best able to provide relevant information.

Moser & Korstjens (2018) reported that. “Sampling is the process of selecting or searching for situations, context and/or participants who provide rich data of the phenomenon of interest (…) In qualitative research, you sample deliberately, not at random. The most commonly used deliberate sampling strategies are purposive sampling, criterion sampling, theoretical sampling, convenience sampling and snowball sampling (…) Key informants hold special and expert knowledge about the phenomenon to be studied and are willing to share information and insights with you as the researcher.” (p.10)

Furthermore, the authors recognize that sampling on the basis of the different types of treatment could also be a valid and very interesting option. For this reason, limitations include the need to conduct studies describing the perspective of women with ESRKD based on the different treatments.

We included the following in the limitations section:

Finally, the present study has not sampled the different types of renal replacement therapy. It would be necessary to develop new studies describing the perspective of women with ESRD, focusing specifically on each of the different types of treatment.

References:

• Creswell, J.W.; Poth, C.N. Qualitative Inquiry and Research Design. Choosing among Five Approaches, 4th ed.; Sage: Thousand Oaks, CA, USA, 2018

• Moser A, Korstjens I. Series: Practical guidance to qualitative research. Part 3: Sampling, data collection and analysis. Eur J Gen Pract. 2018 Dec;24(1):9-18. doi: 10.1080/13814788.2017.1375091.

Page 4; line 24 -qualitative research is important to all health care professionals not just nurses!

Response: We agree with the reviewer. We have followed the reviewer´s recommendations and removed this sentence.

I am unclear about how losses and limitations regarding driving, working etc is relevant to the research question – could this be discussed more in the context of motherhood – or left-out as dietary restrictions and travel is not just specific to mothers.

Response: We agree with the reviewer. We have removed theme 4. We have changed it and rewritten the abstract, results and discussion sections.

The discussion is succinct and well written, but should include more detail about the challenge of not accepting a kidney from offspring, and the importance of discussing motherhood challenges in pre-pregnancy counselling.

Response: We have followed the reviewer´s recommendations.

We have included the following in the discussion section.

The importance of pre-pregnancy counseling in women with ESRD needs to be highlighted, and the challenges that may be faced during childbearing discussed. Preconception counselling by multidisciplinary specialized teams is essential to support women in making informed, autonomous decisions, and to maximize opportunities to modify medical care to optimize outcomes if pregnancy occurs [35]. Counseling should be provided to women with ESRD and their partners at the onset of the disease, discussing aspects such as the possibility of delaying pregnancy (contraceptive use), timing of conception, control of renal disease, previous episodes of preeclampsia or acute kidney injury in pregnancy, possibility of prematurity of the children, possibility of low birth weight, delaying pregnancy until obtaining kidney transplantation, and the possibility of a low birth weight [10,17,35-37]. Piccoli et al [38] in their study on improving care in Kidney Diseases and Pregnancy, describe how it is necessary for the clinical approach to include ethical aspects of pregnancy in patients with diabetes, hypertension and immunological diseases, and the importance of taking into consideration the different cultural and religious contexts. Currently, there are still unresolved issues that women need to be informed about, such as the role of urinary tract infections, kidney stones and urinary malformations [38].

We have included new references:

• Cabiddu G, Spotti D, Gernone G, Santoro D, Moroni G, Gregorini G, Giacchino F, Attini R, Limardo M, Gammaro L, Todros T, Piccoli GB; Kidney and Pregnancy Study Group of the Italian Society of Nephrology. A best-practice position statement on pregnancy after kidney transplantation: focusing on the unsolved questions. The Kidney and Pregnancy Study Group of the Italian Society of Nephrology. J Nephrol. 2018 Oct;31(5):665-681. doi: 10.1007/s40620-018-0499-x.

• Fitzpatrick A, Mohammadi F, Jesudason S. Managing pregnancy in chronic kidney disease: improving outcomes for mother and baby. Int J Womens Health. 2016 Jul 14;8:273-85. doi: 10.2147/IJWH.S76819.

• Piccoli GB, Alrukhaimi M, Liu ZH, Zakharova E, Levin A. What We Do and Do Not Know about Women and Kidney Diseases; Questions Unanswered and Answers Unquestioned: Reflection on World Kidney Day and International Women's Day. Kidney Dis (Basel). 2018 Feb;4(1):37-48. doi: 10.1159/000485269.

• Piccoli GB, Attini R, Cabiddu G. Kidney Diseases and Pregnancy: A Multidisciplinary Approach for Improving Care by Involving Nephrology, Obstetrics, Neonatology, Urology, Diabetology, Bioethics, and Internal Medicine. J Clin Med. 2018 Jun 4;7(6):135. doi: 10.3390/jcm7060135.

• Piccoli GB, Postorino V, Cabiddu G, Ghiotto S, Guzzo G, Roggero S, Manca E, Puddu R, Meloni F, Attini R, Moi P, Guida B, Maxia S, Piga A, Mazzone L, Pani A, Postorino M; ‘Kidney and Pregnancy Study Group’ of the ‘Italian Society of Nephrology’; 'Kidney and Pregnancy Study Group' of the 'Italian Society of Nephrology'. Children of a lesser god or miracles? An emotional and behavioural profile of children born to mothers on dialysis in Italy: a multicentre nationwide study 2000-12. Nephrol Dial Transplant. 2015 Jul;30(7):1193-202. doi: 10.1093/ndt/gfv127.

• Wadd KM, Bennett PN, Grant J. Mothers requiring dialysis: parenting and end-stage kidney disease. J Ren Care. 2014 Jun;40(2):140-6. doi: 10.1111/jorc.12066.

REVIEWER: 2

The title and introduction of the manuscript need to clearly state that this refers to women with end-stage kidney disease on dialysis. The importance of this distinction being that the challenges are indeed far greater in this cohort of women than in those with mild chronic kidney disease.

Response: We have followed the reviewer´s recommendations.

We have included new information to the introduction section.

Page 3 line 15 to 17 - I do not understand - are the authors saying that CKD is the fifth most common cause of kidney failure after diabetes, hypertension, glomerulonephritis and pyelonephritis? These diagnoses all cause CKD! This should be deleted.

Response: Thank you very much for your comments. We have removed the paragraph and rewritten the introduction section. We have also followed the recommendations by Reviewer 1.

I note the mean age of the women was 54.1yrs - how old are the children / how long ago were they born? Medical care has changed hugely in the are of obstetric nephrology over the last 30 yrs - could the authors comment on whether there was a difference in the challenges faced between the older and younger cohort of women?

Response: We agree with the reviewer that the mean age is high and may condition the perspective of the participants, since their experience with the renal treatment received may have been very different. In this study we have not asked specific questions about this aspect, nor have we compared the narratives of patients with different age ranges. The authors believe that this aspect is relevant and it is included and described in the limitations section of the study. In addition, the changes that the authors believe have set the tone in the treatment of women with ESRD who wish to have children are also included.

We have included the following text in the discussion section:

Finally, the present study has not sampled the different types of renal replacement therapy. It would be necessary to develop new studies describing the perspective of women with ESRD, focusing specifically on each of the different types of treatment. Another limitation is that the participants included in the study are patients with a high average age (57,5 years). Treatment and medical care have changed in the area of obstetric nephrology over the last 20 years [10,37]. Intensive hemodialysis is now the standard model of care for women receiving dialysis in pregnancy, particularly if residual renal function is minimal [41 - 43]. Thus, in women with ESRD, intensification of hemodialysis, targeting a serum blood urea nitrogen <35 mg/dL or 36 hours of dialysis per week in women with no residual kidney function, is associated with improved live birth rates and longer gestational age [43]. Hladunewich [42], and Oliverio & Hladunewich [43] concluded that pregnancy may be safe and feasible in women with ESRD receiving intensive hemodialysis. Moreover, fertility is significantly increased after kidney transplantation, and the chances of successful delivery are increased compared to women on dialysis [20]. All these changes may influence the results of the present study because there may be different perspectives between older and younger patients about the disease and its treatment [10,37]. In the present study, no specific questions were asked to determine the perspective regarding treatment and medical care between older and younger women. In future studies, it would be necessary to include this criterion to compare and describe the perspectives and expectations regarding renal replacement therapy among women with different age groups, for example, adolescents (13-19 years), adults (20-64 years) and older women (>65 years).

Also, we have included new references:

• Cabiddu G, Spotti D, Gernone G, Santoro D, Moroni G, Gregorini G, Giacchino F, Attini R, Limardo M, Gammaro L, Todros T, Piccoli GB; Kidney and Pregnancy Study Group of the Italian Society of Nephrology. A best-practice position statement on pregnancy after kidney transplantation: focusing on the unsolved questions. The Kidney and Pregnancy Study Group of the Italian Society of Nephrology. J Nephrol. 2018 Oct;31(5):665-681. doi: 10.1007/s40620-018-0499-x. Epub 2018 Jun 14. Erratum in: J Nephrol. 2018 Jul 6;: PMID: 29949013; PMCID: PMC6182355.

• Hladunewich MA. Chronic Kidney Disease and Pregnancy. Semin Nephrol. 2017 Jul;37(4):337-346. doi: 10.1016/j.semnephrol.2017.05.005. PMID: 28711072.

• Oliverio AL, Hladunewich MA. End-Stage Kidney Disease and Dialysis in Pregnancy. Adv Chronic Kidney Dis. 2020 Nov;27(6):477-485. doi: 10.1053/j.ackd.2020.06.001. PMID: 33328064; PMCID: PMC7781109.

• Piccoli GB, Alrukhaimi M, Liu ZH, Zakharova E, Levin A. What We Do and Do Not Know about Women and Kidney Diseases; Questions Unanswered and Answers Unquestioned: Reflection on World Kidney Day and International Women's Day. Kidney Dis (Basel). 2018 Feb;4(1):37-48. doi: 10.1159/000485269. Epub 2018 Feb 1. PMID: 29594141; PMCID: PMC5848484.

• Piccoli GB, Cabiddu G, Daidone G, Guzzo G, Maxia S, Ciniglio I, Postorino V, Loi V, Ghiotto S, Nichelatti M, Attini R, Coscia A, Postorino M, Pani A; Italian Study Group “Kidney and Pregnancy”. The children of dialysis: live-born babies from on-dialysis mothers in Italy--an epidemiological perspective comparing dialysis, kidney transplantation and the overall population. Nephrol Dial Transplant. 2014 Aug;29(8):1578-86. doi: 10.1093/ndt/gfu092. Epub 2014 Apr 22. PMID: 24759612.

• Piccoli GB, Minelli F, Versino E, Cabiddu G, Attini R, Vigotti FN, Rolfo A, Giuffrida D, Colombi N, Pani A, Todros T. Pregnancy in dialysis patients in the new millennium: a systematic review and meta-regression analysis correlating dialysis schedules and pregnancy outcomes. Nephrol Dial Transplant. 2016 Nov;31(11):1915-1934. doi: 10.1093/ndt/gfv395. Epub 2015 Nov 27. PMID: 26614270.

Conceiving / successful pregnancy / motherhood whilst on dialysis is of course hugely challenging and the themes in this paper are important to share with patients and healthcare professionals. However, it would be worthwhile giving a message of hope:

1. Prepregnancy counselling should be promoted as it gives the opportunity to inform of these risks and challenges. It empowers women and their partners in decision making and gives them the opportunity to discuss their fears. It is also an opportunity to optimise risk factors and highlight options (assisted fertility, adoption, surrogacy).

2. The data from Michelle Hladunewich and Luders et al has demonstrated intensive dialysis prescription gives a higher chance of a better pregnancy outcome and this has changed our practice in the last 5-10 years.

3. A well functioning transplant restores fertility and reduces that ESKD on dialysis poses to a pregnancy.

4. Greater awareness of the challenges faced paves the way to greater support for these women.

Response: We have followed the reviewer's indications. New information on the beneficial effect of intensive dialysis in pregnancy is included in the discussion, and recent studies by Hladunewich et al and Piccoli et al are cited (see references below).

We have included in the discussion section:

Treatment and medical care have changed in the area of obstetric nephrology over the last 20 years [10,37]. Intensive hemodialysis is now the standard model of care for women receiving dialysis in pregnancy, particularly if residual renal function is minimal [41-43]. Thus, in women with ESRD, intensification of hemodialysis, targeting a serum blood urea nitrogen <35 mg/dL or 36 hours of dialysis per week in women with no residual kidney function, is associated with improved live birth rates and longer gestational age [43]. Hladunewich [42], and Oliverio & Hladunewich [43] concluded that pregnancy may be safe and feasible in women with ESRD receiving intensive hemodialysis. Moreover, fertility is significantly increased after kidney transplantation, and the chances of successful delivery are increased compared to women on dialysis [20].

In addition, further information is included in the conclusions, noting, and highlighting that despite the challenges, today women with ESRD are safer and can safely become mothers.

The following has been included in the conclusions section:

Finally, it should be noted that becoming pregnant, and having children while on dialysis is a major challenge for women with ESRD that has risks, however, pre-pregnancy counselling provides an opportunity to learn about the risks and challenges and enables women and their partners to make an informed decision and discuss their doubts and fears, and choose different options (assisted fertility, adoption, surrogacy). In addition, intensive dialysis has resulted in a greater likelihood of a better pregnancy outcome, and kidney transplantation can restore a woman's fertility.

Also, we have included new references:

• Hladunewich MA. Chronic Kidney Disease and Pregnancy. Semin Nephrol. 2017 Jul;37(4):337-346. doi: 10.1016/j.semnephrol.2017.05.005. PMID: 28711072.

• Oliverio AL, Hladunewich MA. End-Stage Kidney Disease and Dialysis in Pregnancy. Adv Chronic Kidney Dis. 2020 Nov;27(6):477-485. doi: 10.1053/j.ackd.2020.06.001. PMID: 33328064; PMCID: PMC7781109.

• Piccoli GB, Cabiddu G, Daidone G, Guzzo G, Maxia S, Ciniglio I, Postorino V, Loi V, Ghiotto S, Nichelatti M, Attini R, Coscia A, Postorino M, Pani A; Italian Study Group “Kidney and Pregnancy”. The children of dialysis: live-born babies from on-dialysis mothers in Italy--an epidemiological perspective comparing dialysis, kidney transplantation and the overall population. Nephrol Dial Transplant. 2014 Aug;29(8):1578-86. doi: 10.1093/ndt/gfu092. Epub 2014 Apr 22. PMID: 24759612.

• Piccoli GB, Minelli F, Versino E, Cabiddu G, Attini R, Vigotti FN, Rolfo A, Giuffrida D, Colombi N, Pani A, Todros T. Pregnancy in dialysis patients in the new millennium: a systematic review and meta-regression analysis correlating dialysis schedules and pregnancy outcomes. Nephrol Dial Transplant. 2016 Nov;31(11):1915-1934. doi: 10.1093/ndt/gfv395. Epub 2015 Nov 27. PMID: 26614270.

The authors believe that the comments made by the reviewers have improved the quality of the manuscript. We hope that the changes made meet all the observations and expectations of the reviewers.

The Authors

Attachment

Submitted filename: Response to Reviewers.doc

Decision Letter 1

Frank JMF Dor

23 Aug 2021

PONE-D-21-15320R1

The experience of being a mother with end stage renal disease: A qualitative study of women receiving treatment at an ambulatory dialysis unit

PLOS ONE

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Reviewer #2: Many thanks for the opportunity to re-review this manuscript. The authors have addressed the reviewers' comments.

A few things:

I think this sentence in the abstract conclusion may still be misleading page 3 line 3-4 'These findings are also relevant to

4 women requiring long-term dialysis.' In fact these findings are ONLY relevant to women on dialysis. I would recommend removing the word 'also'. The findings are not relevant to women who have ESKD but are transplanted.

Page 3 line 13 - 14 - I still think that for the causes of CKD, autoimmune disease and genetic renal disease should be included in this list. I realise they are discussed later but they should be mentioned from the outset.

Page 15 line 3 - typo - CDK should read CKD

Recommend that 'ESRD' be changed to 'ESKD' and acute kidney disease by changed to AKI (acute kidney injury) throughout the manuscript in line with current nomenclature.

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PLoS One. 2021 Sep 27;16(9):e0257691. doi: 10.1371/journal.pone.0257691.r004

Author response to Decision Letter 1


26 Aug 2021

Decision on Manuscript PONE-D-21-15320R1

Entitled: The experience of being a mother with end stage renal disease: A qualitative study of women receiving treatment at an ambulatory dialysis unit

Journal: PLOS ONE

We would like to thank the Editors and the Reviewers for their careful consideration of our manuscript. We would also like to thank the Reviewers’ suggestions, which we believe have enhanced the quality of the manuscript. We have highlighted (in yellow) all the changes we have made throughout the text. Below please find a detailed list of how we have addressed each comment.

Reviewers' Comments to Author:

REVIEWER: 2

A few things:

I think this sentence in the abstract conclusion may still be misleading page 3 line 3-4:

'These findings are also relevant to4 women requiring long-term dialysis.' In fact these findings are ONLY relevant to women on dialysis. I would recommend removing the word 'also'. The findings are not relevant to women who have ESKD but are transplanted.

Response: We have followed the reviewer´s recommendations and clarify the sentence.

Deciding to become a mother and taking care of children represents a challenge for women with ESKD, coupled with the losses in their lives caused by the disease. These findings are only relevant to women on dialysis.

Page 3 line 13 - 14 - I still think that for the causes of CKD, autoimmune disease and genetic renal disease should be included in this list. I realise they are discussed later but they should be mentioned from the outs

Response: We have followed the reviewer´s recommendations and included the causes of kidney disease.

A significant percentage of the population suffer from CKD, which is related to highly prevalent phenomena or diseases, such as ageing, arterial hypertension, diabetes, cardiovascular disease, autoimmune disease or genetic renal disease [3].

Page 15 line 3 - typo - CDK should read CKD

Response: We have followed the reviewer´s recommendation and change it.

Gender differences exist in kidney disease [10]. Women have a higher prevalence of specific autoimmune diseases that, together with pregnancy, form a unique challenge for women at risk of CKD and AKI [10].

Recommend that 'ESRD' be changed to 'ESKD' and acute kidney disease by changed to AKI (acute kidney injury) throughout the manuscript in line with current nomenclature.

Response: We have followed the reviewer´s recommendations and change it in the manuscript

The authors believe that the comments made by the reviewers have improved the quality of the manuscript. We hope that the changes made meet all the observations and expectations of the reviewers.

The Authors

Attachment

Submitted filename: Response to Reviewers R2.doc

Decision Letter 2

Frank JMF Dor

8 Sep 2021

The experience of being a mother with end stage renal disease: A qualitative study of women receiving treatment at an ambulatory dialysis unit

PONE-D-21-15320R2

Dear Dr. García,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication.

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Kind regards,

Frank JMF Dor, M.D., Ph.D., FEBS, FRCS

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

Reviewers' comments:

Acceptance letter

Frank JMF Dor

13 Sep 2021

PONE-D-21-15320R2

The experience of being a mother with end stage renal disease: A qualitative study of women receiving treatment at an ambulatory dialysis unit

Dear Dr. Velarde-García:

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on behalf of

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Academic Editor

PLOS ONE

Associated Data

    This section collects any data citations, data availability statements, or supplementary materials included in this article.

    Supplementary Materials

    S1 Interview guide review

    (DOCX)

    Attachment

    Submitted filename: Response to Reviewers.doc

    Attachment

    Submitted filename: Response to Reviewers R2.doc

    Data Availability Statement

    Data may be obtained from a third party and are not publicly available. All data relevant to the study are included in the article or uploaded as online supplemental information.


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