Abstract
Objective:
to assess the knowledge and attitudes of pregnant women towards COVID-19 vaccination and the factors that affect them.
Method:
this is a cross-sectional and analytical study with 407 pregnant women. The COVID-19 Vaccine Knowledge and Attitude Scale was used to assess the knowledge and attitudes of pregnant women towards COVID-19 vaccination. Mann-Whitney U and Kruskal-Wallis H tests were used for statistical analysis.
Results:
it was found that 63.88% of the sample had a negative opinion about being vaccinated against COVID-19 during pregnancy. Seventy-five percent of the pregnant women believed that the vaccine would harm their fetus. The mean subscale scores of the severity (p = 0.001) and benefit (p = 0.001) of the vaccine were significantly higher in pregnant women with a higher level of education and in the first trimester (p = 0.001). It was found that pregnant women who stated that they had sufficient information about COVID-19 had significantly higher severity (p = 0.001) and benefit (p = 0.031) subscale mean scores and had a more positive attitude against COVID-19 vaccination during pregnancy.
Conclusion:
most pregnant women had negative attitudes due to concerns that the COVID-19 vaccine would harm the fetus. Healthcare professionals should provide education about the importance of vaccination during pregnancy for maternal and infant health during pregnancy follow-up.
Descriptors: Vaccine, COVID-19, Women, Pregnancy, Knowledge, Attitude
Highlights
(1) The study evaluated vaccine acceptance and COVID-19 vaccine attitude during pregnancy. (2) Pregnant women participated in the study. (3) Negative attitudes towards vaccines during pregnancy was detected. (4) The study results can be a guide to inform health institutions about vaccine acceptance.
Introduction
COVID-19, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has caused massive morbidity and mortality globally 1 . From 2019, when the first coronavirus cases were detected, to July 2024, more than 775 million confirmed cases and more than 7 million deaths were reported worldwide. In addition, approximately 14 billion doses of COVID-19 vaccine have been administered 2 .
Due to physiological and immunological changes that occur during pregnancy, pregnant women become more susceptible to respiratory tract infections, putting them at high risk for serious outcomes in the event of COVID-19 3 .
Studies have reported that COVID-19 infection worsens the clinical course in pregnant women compared to non-pregnant women of the same age 4 . The US Centers for Disease Control and Prevention (CDC) reports that pregnant women are three times more likely to be admitted to the intensive care unit or require intubation and 1.5 times more likely to die from COVID-19 than non-pregnant women 5 .
Adverse effects of COVID-19 have also been found in terms of fetal health and development. In a meta-analysis study, it was found that pregnant women with SARS-CoV-2 infection had a higher risk of stillbirth and preterm birth than pregnant women without the infection 6-7 . Moreover, SARS-CoV-2 infection can trigger a cytokine storm, which can lead to both an inflammatory response in the fetus and placental damage with subsequent fetal growth restriction, preterm labor, and miscarriage 8 .
Many factors affect individuals’ attitudes towards vaccination. These factors include the type of vaccine, geography, culture, and socioeconomic status. People may also have reservations about accepting new vaccines. Hesitancy about vaccination may increase during pregnancy due to concerns about its effects on the fetus 9-10 .
One of the most effective approaches against COVID-19, which causes severe acute respiratory syndrome, is vaccination 10-11 . Because none of the COVID-19 vaccines contain live viruses or adjuvants that could harm an unborn child, several studies, the American College of Obstetricians and Gynecologists(5,12-14) and the Society for Maternal-Fetal Medicine recommend vaccination for pregnant and breastfeeding women 15-16 . While the American College of Obstetricians and Gynecologists recommends the COVID-19 vaccine to all pregnant women, it has been stated that the decision should be left to the woman after individual risk factors are carefully assessed 5 . The literature emphasizes that vaccine-related reactions in pregnant and breastfeeding individuals are similar to that of the general population. In addition, research results report that vaccinated pregnant individuals are less likely to contract COVID-19 and that the disease has a milder course in infants born to vaccinated mothers 17 . Pregnant women generally have lower willingness and greater concern about vaccination against vaccine-preventable diseases (e.g., influenza and tetanus) than the general population 10 . It has been determined that women who have a negative attitude towards vaccines during pregnancy also have vaccine hesitancy towards the COVID-19 vaccine 4 . This situation shows that developing a positive attitude towards vaccination during pregnancy can reduce vaccine hesitancy towards the COVID-19 vaccine and potentially new vaccines 18-20 .
Given the increased morbidity associated with COVID-19 in pregnancy, it is important to determine pregnant women’s knowledge and attitudes towards COVID-19 vaccination during pregnancy in order to protect the pregnant woman and fetus from COVID-19 and reduce the adverse effects of the disease on pregnancy and the fetus 21-22 . For these reasons, this study was planned to evaluate the knowledge and attitudes of pregnant women toward the COVID-19 vaccine and the factors affecting their knowledge and attitudes.
Method
Type of study
This research is a descriptive cross-sectional, and analytical study. It is based on the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) guidelines.
Study location, and population
The study was conducted from January to April 2022 in Northern Cyprus, which is a 9,251 km2 island in the Mediterranean where tourism is widespread and there are many students enrolled into 22 universities. For these reasons, the students population as academics as well as for working purposes is quite high. In addition, Northern Cyprus is an island with a very low birth rate and according to official data, the total number of births in the country in 2012 was 3,614 24 . Deliveries of women who have immigrant status for education and work purposes were also included in this number.
Pregnant women over the age of 18 who voluntarily participated in the study were included in the study, regardless of their gestational age. Data was collected online to prevent the risk of infection due to the pandemic. The surveys were designed by researchers using Google Forms. The link to the created Google Form was shared by the researcher on social media platforms (WhatsApp, Messenger, Facebook, and Instagram). The first page of the online questionnaire included information about the purpose and content of the study and the informed consent form for participation in the study. The form was created in a way that those who agreed to participate went on with the questionnaire.
Sample selection
The number of pregnant women to be included in the sample was determined by the power analysis method. The birth rate statistics of the country were used as a reference for statistical power analysis 23 . The number of pregnant women required for the study was found to be 365 with α=0.05, 1-β=0.80, and 0.20 error rate. Of the women invited to the study, 407 accepted to participate and constituted the sample group of the study. After the study was completed, post-hoc power analysis was performed to determine the adequacy of the sample size. According to the power analysis, it was determined that the total sample was sufficient with an effect size of 0.92, 99% power, and 0.05% margin of error.
Inclusion criteria
Pregnant women aged 18 years and over, without communication barriers (not speaking Turkish, mental health issues etc.), literate, with basic digital literacy were included in the study.
Exclusion criteria
Pregnant women with any risk factors during pregnancy (e.g., pre-eclampsia, intrauterine growth retardation, premature rupture of membranes, gestational diabetes etc.) and pregnant women with any diagnosed problems related to the fetus’ health (e.g., fetal anomaly, intrauterine growth retardation) were excluded.
Data collection instruments
The first 14 items of the form with 27 questions prepared by the researcher based on the literature review were rated to determine the socio-demographic characteristics of the participants(20,24). Thirteen questions included the vaccination status of the participants, their views on getting COVID-19 vaccine during pregnancy, and vaccine information sources(1,7,24-25).
COVID-19 Vaccine Knowledge and Attitude Scale
The scale, which was developed in 2021 to evaluate the Knowledge and Attitude of individuals concerning the COVID-19 vaccine, is a five-point Likert-type scale and consists of 16 questions 26 . The scale has no cut-off point. The high mean score obtained in each subscale indicates that the perceptions regarding seriousness, obstacle, and benefit subscale are high. The scale consists of a total of three subscales: “Perception of Severity of COVID-19 Disease” (5 items), “Perception of Vaccine Barriers” (7 items), and “Perception of Vaccine Benefit” (4 items). In scale scoring, each subscale is scored in itself. While high scores on the severity and benefit subscales indicate a positive attitude toward COVID-19, a high score on the barrier subscale indicates a negative attitude toward COVID-19. The Cronbach alpha coefficient of the scale used in our study was calculated as 0.83.
Data analysis
In the study, the socio-demographic characteristics and vaccination status of the pregnant women and their distribution according to some characteristics related to COVID-19 were determined by frequency analysis. Descriptive statistics regarding the COVID-19 Vaccine Knowledge and Attitude Scale scores of the pregnant women were given and compliance with the normal distribution was examined with the Kolmogorov-Smirnov test. Nonparametric hypothesis tests such as Mann-Whitney U and Kruskal-Wallis H tests were used in the study, because the COVID-19 Vaccine Knowledge and Attitude Scale scores of pregnant women did not show a normal distribution.
Ethical aspects
This study was approved by the University’s Institutional Review Board (nº 2021/98-1444). Before starting the survey, the consent of all participants was obtained, and the confidentiality of personal information was ensured. The study was conducted according to the ethical principles of the Declaration of Helsinki.
Results
Table 1 presents the socio-demographic characteristics of the study conducted with the participation of 407 pregnant women. The mean age of the pregnant women participating in the study was 27.61±4.73 years old. It was determined that 27.27% of the participants were in the 1st trimester, 40.05% were in the 2nd trimester and 32.68% were in the 3rd trimester. A fraction of 62.41% was in their first pregnancy, 28.99% was in their second pregnancy, and 28.26% already had a child.
Table 1 - . Distribution of the pregnant women according to their socio-demographic and obstetric characteristics (n = 407). Nicosia, Cyprus, 2022.
| Socio-demographic and obstetric characteristics | n * | % † |
|---|---|---|
| Age group ( mean 27.61±4.73 years) | ||
| 24 years and younger | 85 | 20.88 |
| 25-28 years | 172 | 42.26 |
| 29 years and older | 150 | 36.86 |
| Educational background | ||
| Primary School | 27 | 6.63 |
| Secondary School | 55 | 13.51 |
| High School | 75 | 18.43 |
| University | 215 | 52.83 |
| Postgraduate | 35 | 8.60 |
| Income level | ||
| Income less than the expense | 68 | 16.71 |
| Income equal to the expense | 307 | 75.43 |
| Income higher than the expense | 32 | 7.86 |
| Employment status | ||
| Yes | 292 | 71.74 |
| No | 115 | 28.26 |
| Type of employment | ||
| Full-time | 229 | 56.27 |
| Part-time | 178 | 43.73 |
| Type of family | ||
| Nuclear family | 376 | 92.38 |
| Extended family | 31 | 7.62 |
| Time married | ||
| 0-3 years | 216 | 53.07 |
| 4-10 years | 136 | 33.42 |
| 11 years or more | 55 | 13.51 |
| Gestational age | ||
| 1 st trimester | 111 | 27.27 |
| 2 nd trimester | 163 | 40.05 |
| 3 rd trimester | 133 | 32.68 |
| Pregnancy | ||
| First | 254 | 62.41 |
| Second | 118 | 28.99 |
| Third or more | 35 | 8.60 |
| Number of living children | ||
| None | 257 | 63.14 |
| One | 115 | 28.26 |
| Two or more | 35 | 8.60 |
*n = Number of subjects; †% = Percentage
It was determined that 13.51% of the pregnant women were secondary school graduates, 18.43% were high school graduates and 52.83% were university graduates. Circa two-thirds, 75.43%, had an income equal to expenses, 71.74% were employed, and 92.38% had a nuclear family.
In the present study, it was found that while the severity (p = 0.001) and benefit (p = 0.001) subscale scores of the pregnant women who were primary school graduates were lower (p = 0.001), the barrier subscale scores were higher (p = 0.001). Moreover, pregnant women with higher education levels had more positive opinions about getting the COVID-19 vaccine during pregnancy (p < 0.05).
Severity (p = 0.001) and benefit (p = 0.001) subscale scores were significantly higher, and barrier (p = 0.001) subscale scores were lower in pregnant women in the first trimester compared to those in the second and third trimesters.
It was determined that 89.43% of the pregnant women included in the study were not vaccinated against tetanus and 100.0% were not vaccinated against influenza. More than half, 51.84% have had the COVID-19 vaccine before pregnancy, 36.12% had positive opinions about getting the COVID-19 vaccine during pregnancy, and 63.88% had negative opinions about being vaccinated against COVID-19 during pregnancy. A fraction of 61.90% of the pregnant women who had a positive opinion believed that the vaccine protects against the COVID-19 virus during pregnancy and 75% of those who had a negative opinion believed that the vaccine would harm the fetus. It was observed that 83.29% of the pregnant women received information about the COVID-19 vaccine during pregnancy and 60.69% stated that they had sufficient knowledge about the COVID-19 vaccine. Most of them, 86.73% of the pregnant women, stated that they obtained information about COVID-19 from a doctor, 45.45% from social media, 55.04% from specialists through TV or Internet, and 28.99% from nurses (Table 2).
Table 2 - . Distribution of pregnant women according to their vaccination status and some COVID-19-related characteristics (n = 407). Nicosia, Cyprus, 2022.
| Vaccination status and COVID-19-related characteristics | n * | % † |
|---|---|---|
| Being vaccinated against tetanus | ||
| Yes | 43 | 10.57 |
| No | 364 | 89.43 |
| Being vaccinated against influenza | ||
| No | 407 | 100.00 |
| Paying attention to hand hygiene | ||
| Yes | 407 | 100.00 |
| Paying attention to social distancing | ||
| Yes | 407 | 100.00 |
| Paying attention to using a facial mask | ||
| Yes | 407 | 100.00 |
| Having contracted COVID-19 | ||
| Yes | 78 | 19.16 |
| No | 329 | 80.84 |
| Having contracted COVID-19 during pregnancy | ||
| Yes | 52 | 12.78 |
| No | 355 | 87.22 |
| Personal status regarding the COVID-19 vaccine | ||
| I received a COVID-19 vaccine before pregnancy | 211 | 51.84 |
| I received a COVID -19 vaccine both before and during pregnancy | 32 | 7.86 |
| I have not been vaccinated yet. I plan to be vaccinated during my pregnancy | 41 | 10.07 |
| I plan to get vaccinated after pregnancy | 32 | 7.86 |
| I plan to get vaccinated after my breastfeeding period | 40 | 9.83 |
| I do not plan to receive a COVID -19 vaccine | 51 | 12.53 |
| View on receiving a COVID-19 vaccine during pregnancy | ||
| Negative | 260 | 63.88 |
| Positive | 147 | 36.12 |
| Reason for a positive opinion (n=147) | ||
| I believe the vaccine protects me from COVID-19 during pregnancy | 91 | 61.90 |
| I believe the vaccine protects my infant from COVID -19 during pregnancy | 56 | 38.10 |
| Reason for a negative opinion (n=260) | ||
| I believe the vaccine would harm my infant | 195 | 75.00 |
| I believe the vaccine poses risk to my infant’s life | 123 | 47.31 |
| I believe the vaccine poses risk to my infant’s mental development | 107 | 41.15 |
| Obtained information about COVID-19 vaccine during pregnancy | ||
| Yes | 339 | 83.29 |
| No | 68 | 16.71 |
| Did you have sufficient knowledge about the COVID-19 vaccine | ||
| Yes | 247 | 60.69 |
| No | 160 | 39.31 |
| What information sources on COVID-19 did you have | ||
| Doctor | 353 | 86.73 |
| Social media | 185 | 45.45 |
| Specialists through TV or Internet | 224 | 55.04 |
| Nurse | 118 | 28.99 |
| Family and friends | 63 | 15.48 |
*n = Number of respondants; †% = Percentage
The mean severity and benefit subscale scores of women who were vaccinated before pregnancy, who were vaccinated both before and during pregnancy, those who were not yet vaccinated, and those who plan to be vaccinated during pregnancy were found to be significantly higher, and barrier subscale mean scores were found to be significantly higher (p = 0.001). The mean severity and benefit subscale scores of those who had a positive opinion about receiving the COVID-19 vaccine during pregnancy were found to be higher than those who had a negative opinion (p = 0.001). It was determined that those who received information about the COVID-19 vaccine during pregnancy had higher mean scores on the severity subscale (p = 0.018). Those who learned about the COVID-19 vaccine during pregnancy and believed that they had sufficient information were found to have higher mean scores of severity and proficiency subscales, and lower mean scores of barrier subscales (p < 0.05) (Table 3).
Table 3 - . Comparison of the severity, barrier, and benefit subscale mean scores of the COVID-19 vaccine knowledge and attitude scale according to their vaccination status and some COVID-19-related characteristics (n = 407). Nicosia, Cyprus, 2022.
| Vaccination status and COVID-19-related characteristics | Severity | Barrier | Benefit | ||||||
|---|---|---|---|---|---|---|---|---|---|
| x̄* | SD † | p ‡ | x̄* | SD † | p ‡ | x̄* | SD † | p ‡ | |
| Having COVID-19 infection | |||||||||
| Yes | 16.00 | 4.20 | 0.062 | 22.36 | 3.84 | 0.886 | 12.44 | 3.83 | 0.019 |
| No | 18.01 | 4.66 | 22.92 | 5.53 | 11.93 | 3.83 | |||
| Having COVID-19 during pregnancy | |||||||||
| Yes | 15.00 | 4.85 | 0.003 | 23.54 | 4.24 | 0.029 | 11.15 | 4.13 | 0.224 |
| No | 18.01 | 4.48 | 22.71 | 5.38 | 12.16 | 3.77 | |||
| Personal status regarding COVID-19 vaccine | |||||||||
| Being vaccinated before pregnancy | 18.97 | 3.95 | 0.001 | 22.42 | 4.43 | 0.001 | 13.00 | 3.21 | 0.001 |
| Planning to be vaccinated both before and during pregnancy | 20.25 | 2.95 | 18.88 | 5.41 | 15.88 | 2.46 | |||
| Planning to be vaccinated during pregnancy, since she has not yet been vaccinated | 19.83 | 4.54 | 19.15 | 2.02 | 13.61 | 1.51 | |||
| Planning to be vaccinated after pregnancy | 17.50 | 1.97 | 22.00 | 3.93 | 12.50 | 1.97 | |||
| Planning to be vaccinated after breastfeeding period | 13.50 | 4.56 | 23.00 | 5.06 | 9.50 | 3.54 | |||
| Never thought of receiving a COVID-19 vaccine | 11.96 | 2.47 | 30.25 | 3.45 | 6.00 | 0.00 | |||
| Opinion on receiving a COVID-19 vaccine during pregnancy | |||||||||
| Negative | 16.15 | 4.47 | 0.001 | 24.32 | 5.62 | 0.001 | 10.77 | 4.10 | 0.001 |
| Positive | 20.22 | 3.70 | 20.16 | 3.07 | 14.26 | 1.74 | |||
| Obtained information about COVID-19 vaccine during pregnancy | |||||||||
| Yes | 17.87 | 4.93 | 0.018 | 22.65 | 4.94 | 0.500 | 12.14 | 3.81 | 0.443 |
| No | 16.38 | 2.36 | 23.62 | 6.59 | 11.50 | 3.92 | |||
| Consider that has enough information about COVID-19 vaccine | |||||||||
| Yes | 18.36 | 4.77 | 0.001 | 22.17 | 5.30 | 0.031 | 12.30 | 4.05 | 0.031 |
| No | 16.48 | 4.18 | 23.81 | 5.03 | 11.61 | 3.42 | |||
*x- = Mean; †SD = Standard Deviation; ‡ p < 0.05, estimated by means of the Wald test
Discussion
This study’s results reveal that although women have positive attitudes toward vaccinations while not pregnant, this is not the case during pregnancy. It is also observed that the participants do not have a positive attitude towards tetanus and influenza vaccines during pregnancy and prefer to not be vaccinated during pregnancy. The fact that the rate of routine tetanus vaccination during pregnancy is so low suggests that the issue of vaccination during pregnancy may have been overlooked. Different studies have also reported that the seasonal influenza vaccine is not common among pregnant women and is mostly not accepted by pregnant women 27-30 . Furthermore, it was found that 63.88% of the pregnant women had a negative opinion about being vaccinated against COVID-19 during pregnancy, 75% of these pregnant women believed that the vaccine would harm their fetus, and 47.31% thought that the vaccine imposes a risk to their infant’s life. Studies found that pregnant women consider that vaccines could harm themselves or the fetus, cause infertility, and the risk of contracting COVID-19 was low during pregnancy(7,31). Particularly, perceptions about the effects of the vaccine on the fetus can negatively affect the attitude of pregnant women to the vaccine. In a study, unlike our study, the vaccination rate during pregnancy was found to be high, and it was concluded that despite the reservations about the COVID-19 vaccine, a determined and positive attitude towards vaccines in general increased the acceptance of the COVID-19 vaccine 10 .
The severity and benefit subscale scores of pregnant women in the first trimester were found to be higher. In the literature, it has been shown that different results were obtained when vaccine acceptance is evaluated according to gestational age. A study in Turkey found that vaccine acceptance was higher in the first trimester 24 . A study conducted in China indicated that pregnant women in the second and third trimesters were more willing to receive the COVID-19 vaccine than those in the first trimester 32 .
It has been observed that pregnant women with a high level of education had a positive perspective of the COVID-19 vaccine, the severity and benefit subscale scores of the COVID-19 vaccine were higher, and the barrier subscale scores were low. The studies conducted with both pregnant women and the general population have shown that high education level positively affects vaccine acceptance(25,30,33). In addition, the severity and benefit subscale scores of the pregnant women who stated that they had sufficient information about COVID-19 were found to be higher, and the barrier subscale scores were lower. This shows that educating pregnant women about COVID-19 positively affected the approach to vaccination. Different studies support the result of the present study(10,25,34). The results in the literature also show that pregnant women must have adequate information about the efficacy and safety of the COVID-19 vaccine 35-36 .
It was found that pregnant women attached great importance to paying attention to hand hygiene, use of facial masks, and social distancing, from preventive measures other than vaccination. Likewise, a study found that pregnant women paid attention to the use of masks, hand washing, and social distancing at a high rate 25 . These results showed that pregnant women pay attention to preventive methods for COVID-19.
While 39.31% of the pregnant women stated that they did not have enough knowledge about the COVID-19 vaccine, and they obtained information mostly from doctors (86.73%), which was followed by specialists through the TV and Internet (55.04%). In a study, the main source of information was the media 24 . Especially during the lockdown periods, the Internet was widely used as a media information source. However, these sources can also lead to misinformation. As misinformation continues to spread, recommendations from healthcare professionals as a reliable source of information for pregnant women are crucial 37 . A randomized controlled study evaluating the attitudes of pregnant women towards vaccination by sending text messages about the COVID-19 vaccine was found to have a positive effect on the attitudes of pregnant women towards vaccination by sending information messages by healthcare professionals 38 . The rate of pregnant women who stated that they received information about COVID-19 vaccine from nurses is approximately 30%. Nurses work in health institutions where preventive health services are provided and, in addition, they have health education duties. Therefore, the proportion of pregnant women who received information about COVID-19 vaccine from nurses is thought-provoking.
This study is important in terms of showing that negative attitudes towards vaccines during pregnancy may be a similar approach in terms of acceptance of new vaccines. Education and awareness-raising studies on vaccine acceptance and vaccine attitudes during pregnancy should be conducted, especially outside of epidemic periods, and the continuity of these studies should be ensured. Furthermore, our study reveals that nurses should use their role as educators to reach more women about vaccines during pregnancy.
The language of the study is Turkish. Therefore, the results of the study cannot be generalized to the entire island. Since this study was conducted online and the survey was shared via social media, pregnant women with internet connection and using social media were included in this study. Another limitation is that the responses to the questions depend on the individuals’ subjectivity, since the data was collected online.
Conclusion
In the present study, it was determined that pregnant women had a negative attitude toward vaccination during pregnancy and this negative attitude persisted against COVID-19 vaccines. The most prominent reason for the negative attitude toward COVID-19 vaccines was the concern that it may adversely affect the pregnancy and harm the fetus. The higher the education level of pregnant women, the more positive attitudes they had about being vaccinated against COVID-19 during pregnancy. Moreover, getting enough information about the COVID-19 vaccine affected the attitudes of pregnant women about being vaccinated. In line with these results, it is important to provide training to pregnant women to protect them in the disadvantaged group and to ensure the sustainability of COVID-19 vaccines. Providing information about COVID-19 vaccine and its effects alone will not suffice to prevent new outbreaks. It was found that the vast majority of those who have a negative attitude towards COVID-19 vaccine believe that the vaccine will harm their pregnancy. In addition, the fact that other vaccines are at very low rates during pregnancy reveals that they have a negative attitude against being vaccinated during pregnancy. Therefore, information about the importance of being vaccinated during pregnancy to protect the fetus’ and the mother’s health should not be ignored. It is also recommended that qualitative studies including in-depth interviews be conducted to determine women’s concerns to vaccination during pregnancy.
Footnotes
How to cite this article: Tekbaş S. Knowledge and attitudes of pregnant women about COVID-19 vaccination. Rev. Latino-Am. Enfermagem. 2025;33:e4521 [cited]. Available from: . https://doi.org/10.1590/1518-8345.7331.4521
References
- 1.Chi W. Y., Li Y. D., Huang H. C., Chan T. E. H., Chow S. Y., Su J. H. COVID-19 vaccine update: vaccine effectiveness, SARS-CoV-2 variants, boosters, adverse effects, and immune correlates of protection. J Biomed Sci. 2022;29(1):82–82. doi: 10.1186/s12929-022-00853-8. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 2.World Health Organization. COVID-19 epidemiological update [Internet] WHO; Geneva: 2024. [2024-07-28]. Available from: https://www.who.int/publications/m/item/covid-19-epidemiological-update-edition-169 . [Google Scholar]
- 3.Gianfredi V., Stefanizzi P., Berti A., D’Amico M., Lorenzo V., Lorenzo A. D. systematic review of population-based studies assessing knowledge, attitudes, acceptance, and hesitancy of pregnant and breastfeeding women towards the COVID-19 Vaccine. Vaccines. 2023;11(8):1289. doi: 10.3390/vaccines11081289. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 4.Simsekoglu N., Akyuz E., Guven R., Pasin O. Attitudes toward COVID-19 vaccines during pregnancy and breastfeeding. Front Public Health. 2024;12:1286891. doi: 10.3389/fpubh.2024.1286891. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 5.The American College of Obstetricians and Gynecologists. COVID-19 Vaccination Considerations for Obstetric Gynecologic Care [Internet] ACOG; Washington, D.C: 2021. [2024-03-12]. Available from: https://www.acog.org/clinical/clinical-guidance/practice-advisory/articles/2020/12/covid-19-vaccination-considerations-for-obstetric-gynecologic-care . [Google Scholar]
- 6.Allotey J., Stallings E., Bonet M., Yap M., Chatterjee S., Kew T. Clinical manifestations, risk factors, and maternal and perinatal outcomes of coronavirus disease 2019 in pregnancy: living systematic review and meta-analysis. BMJ. 2020;370:m3320. doi: 10.1136/bmj.m3320. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 7.Sutton D., D’Alton M., Zhang Y., Kahe K., Cepin A., Goffman D. COVID-19 vaccine acceptance among pregnant, breastfeeding, and nonpregnant reproductive aged women. Am J Obstet Gynecol MFM. 2021;3(5):100403. doi: 10.1016/j.ajogmf.2021.100403. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 8.Van Baar J.A., Kostova E.B., Allotey J., Thangaratinam S., Zamora J. R., Bonet M. COVID-19 in pregnant women: a systematic review and meta-analysis on the risk and prevalence of pregnancy loss. Hum Reprod Update. 2024;30(2):133–52. doi: 10.1093/humupd/dmad030. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 9.Bourdin S., Tuzcu S. E., Satıcı E. Explaining COVID-19 vaccine uptake: a spatial sociodemographic study in Turkey. Papers Regional Sci. 2023;102(2):307–29. doi: 10.1111/pirs.12723. [DOI] [Google Scholar]
- 10.Meghani M., Essen B. S., Zapata L. B., Polen K., Galang R. R., Razzaghi H. COVID-19 Vaccination Recommendations and Practices for Women of Reproductive Age by Health Care Providers - Fall DocStyles Survey, United States, 2022. MMWR. Morb Mortal Wkly Rep. 2023;72(39):1045–51. doi: 10.15585/mmwr.mm7239a1. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 11.Pratama N. R., Wafa I. A., Budi D. S., Putra M., Wardhana M. P., Wungu C. D. K. mRNA Covid-19 vaccines in pregnancy: A systematic review. PLoS One. 2022;17(2) doi: 10.1371/journal.pone.0261350. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 12.Desdicioglu R., Avşar F. B., Yavuz A. F. Covid-19 Vaccines and Pregnancy. Ankara Med J. 2021;4:672–86. doi: 10.5505/amj.2021.22120. [DOI] [Google Scholar]
- 13.Ma Y., Deng J., Liu Q., Du M., Liu M., Liu J. Effectiveness and Safety of COVID-19 Vaccine among Pregnant Women in Real-World Studies: A Systematic Review and Meta-Analysis. Vaccines. 2022;10(2):246. doi: 10.3390/vaccines10020246. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 14.Fu W., Sivajohan B., McClymont E., Albert A., Elwood C., Ogilvie G. Systematic review of the safety, immunogenicity, and effectiveness of COVID-19 vaccines in pregnant and lactating individuals and their infants. Int J Gynecol Obstet. 2022;156(3):406–17. doi: 10.1002/ijgo.14008. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 15.Donders G. G. G., Grinceviciene S., Haldre K., Lonnee-Hoffmann R., Donders F., A Tsiakalos. ISIDOG Consensus Guidelines on COVID-19 Vaccination forWomen before, during and after Pregnancy. J Clin Med. 2021;10:2902. doi: 10.3390/jcm10132902. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 16.Zasztowt-Sternicka M., Nitsch-Osuch A. Pregnancy vaccination guide. Fam Med Prim Care Rev. 2024;26(1) doi: 10.5114/fmpcr.2024.134714. [DOI] [Google Scholar]
- 17.Mitchell S. L., Schulkin J., Power M. L. Vaccine hesitancy in pregnant women: A narrative review. Vaccine. 2023;41:4220–7. doi: 10.1016/j.vaccine.2023.05.047. [DOI] [PubMed] [Google Scholar]
- 18.Citu I. M., Citu C., Gorun F., Motoc A., Gorun O. M., Burlea B. Determinants of COVID-19 Vaccination Hesitancy among Romanian Pregnant Women. Vaccines. 2022;10(2):275. doi: 10.3390/vaccines10020275. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 19.Offeddu V., Tam C. C., Yong T. T., Tan L. K., Thoon K. C., Lee N. Coverage and determinants of influenza vaccine among pregnant women: a cross-sectional study. BMC Public Health. 2019;19(1):890. doi: 10.1186/s12889-019-7172-8. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 20.Mohan S., Reagu S., Lindow S., Alabdulla M. COVID-19 vaccine hesitancy in perinatal women: A cross-sectional survey. J Perinatal Med. 2021;49(6):678–85. doi: 10.1515/jpm-2021-0069. [DOI] [PubMed] [Google Scholar]
- 21.Rahmati M., Yon D. K., Lee S. W., Butler L., Koyanagi A., Jacob L. Effects of COVID-19 vaccination during pregnancy on SARS-CoV-2 infection and maternal and neonatal outcomes: a systematic review and meta-analysis. Rev Med Virol. 2023;33(3):e2434. doi: 10.1002/rmv.2434. [DOI] [PubMed] [Google Scholar]
- 22.Norman M., Magnus M. C., Söderling J., Juliusson P. B., Navér L., Örtqvist A. K. Neonatal outcomes after COVID-19 vaccination in pregnancy. JAMA. 2024;331(5):396–407. doi: 10.1001/jama.2023.26945. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 23.Statistical Institute (TR). Statistical yearbook 2020 [Internet] Statistical Institute; Nicosia: 2021. [2022-09-15]. Available from: https://stat.gov.ct.tr/Portals/39/IST-YILLIK-2020.pdf . [Google Scholar]
- 24.Ayhan S. G., Oluklu D., Atalay A., Beser D. M., Tanacan A., Tekin O. M. COVID‐19 vaccine acceptance in pregnant women. Int J Gynecol Obstet. 2021;154(2):291–6. doi: 10.1002/ijgo.13713. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 25.Hoque A. M., Buckus S., Hoque M., Hoque M. E., Hal G. COVID-19 vaccine acceptability among pregnant women at a primary health care facility in Durban, South Africa. Eur J Medical Health Sci. 2020;2(5) doi: 10.24018/ejmed.2020.2.5.493. [DOI] [Google Scholar]
- 26.Elyeli K., Bebiş H. The COVID-19 Vaccine Knowledge and Attitude Scale: A Methodological Study. Cyprus J Med Sci. 2022;7(3):312–20. doi: 10.4274/cjms.2021.2021-83. [DOI] [Google Scholar]
- 27.Ding H., Black C. L., Ball S., Fink R. V., Williams W. W., Fiebelkorn A. P. Influenza vaccination coverage among pregnant women United States, 2016-17 influenza season. MMWR Morb Mortal Wkly Rep. 2017;66(38):1016–22. doi: 10.15585/mmwr.mm6638a2. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 28.D’Alessandro A., Napolitano F., D’Ambrosio A., Angelillo I. F. Vaccination knowledge and acceptability among pregnant women in Italy. Hum Vacc Immunother. 2018;14(7):1573–9. doi: 10.1080/21645515.2018.1483809. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 29.Hu Y., Wang Y., Liang H., Chen Y. Seasonal influenza vaccine acceptance among pregnant women in Zhejiang Province, China: evidence based on health belief model. Int J Env Res Public Health. 2017;14(12) doi: 10.3390/ijerph14121551. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 30.Wang R., Tao L., Han N., Liu J., Yuan C., Deng L. Acceptance of seasonal influenza vaccination and associated factors among pregnant women in the context of COVID-19 pandemic in China: a multi-center cross-sectional study based on health belief model. BMC Pregnancy Childbirth. 2021;21(1):745–745. doi: 10.1186/s12884-021-04224-3. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 31.Ekmez M., Ekmez F. Assessment of factors affecting attitudes and knowledge of pregnant women about COVID-19 vaccination. J Obstet Gynaecol. 2022;42(6):1984–90. doi: 10.1080/01443615.2022.2056831. [DOI] [PubMed] [Google Scholar]
- 32.Tao L., Wang R., Han N., Liu J., Yuan C., Deng L. Acceptance of a COVID-19 vaccine and associated factors among pregnant women in China: a multi-center cross-sectional study based on health belief model. Hum Vaccin Immunother. 2021;17(8):2378–88. doi: 10.1080/21645515.2021.1892432. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 33.Mudenda S., Tembo G., Mfune R. L., Banda P., Kasanga M., Phiri M. Knowledge, Attitude, Acceptance, and Perceived Risks of COVID-19 Vaccines among Pregnant Women: Findings and Implications. SAS J Med. 2024;10(1):9–19. doi: 10.36347/sasjm.2024.v10i01.002. [DOI] [Google Scholar]
- 34.Gianfredi V., Berti A., D’Amico M., De Lorenzo V., Castaldi S. Knowledge, Attitudes, Behavior, Acceptance, and Hesitancy in Relation to the COVID-19 Vaccine among Pregnant and Breastfeeding Women: A Systematic Review Protocol. Women. 2023;3(1):73–81. doi: 10.3390/women3010006. [DOI] [Google Scholar]
- 35.Naqvi S., Saleem S., Naqvi F., Billah S. M., Nielsen E., Fogleman E. Knowledge, attitudes, and practices of pregnant women regarding COVID-19 vaccination in pregnancy in 7 low-and middle-income countries: An observational trial from the Global Network for Women and Children’s Health Research. BJOG. 2022;129(12):2002–9. doi: 10.1111/1471-0528.17226. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 36.Miral M. T., Turgut N., Güldür A., Gülo-lu Z. E., Mamuk R. COVID-19 fear, vaccination hesitancy, and vaccination status in pregnant and breastfeeding women in Turkey. Afr J Reprod Health. 2023;27(6):60–9. doi: 10.29063/ajrh2023/v27i6.7. [DOI] [PubMed] [Google Scholar]
- 37.Devera J. L., Gonzalez Y., Sabharwal V. A narrative review of COVID-19 vaccination in pregnancy and breastfeeding. J Perinatol. 2024;44(1):12–9. doi: 10.1038/s41372-023-01734-0. [DOI] [PubMed] [Google Scholar]
- 38.Güney E., Okyay E. K. The effect of text messaging about COVID-19 vaccine on attitudes, vaccine literacy and anxiety in pregnant women: A randomized controlled study. Mersin Üniv Sağlık Bilim Derg. 2023;16(3):385–97. [Google Scholar]
