Skip to main content
PLOS One logoLink to PLOS One
. 2025 Jul 22;20(7):e0328463. doi: 10.1371/journal.pone.0328463

Factors associated with weighing a child at birth: Evidence from 16 sub-Saharan African countries

Alex Bawuah 1, Samuel Ampaw 2, Edward Nketiah-Amponsah 3,*
Editor: Alfredo Luis Fort4
PMCID: PMC12282927  PMID: 40694564

Abstract

Background

Several children from sub-Saharan Africa (SSA) are not weighed at birth. The lack of birthweight data is a significant challenge in monitoring the global prevalence of extreme birthweight, either low or high, and newborn health. This data guides resource allocation and the design of targeted health policies to address neonatal complications and mortalities. This paper explores the demand-side predictors of newborn weighing.

Methods

Data were obtained from the Demographic and Health Surveys (DHS) of 16 countries in SSA, conducted from 2014 to 2021. Multivariate logistic regression was used to achieve the study’s objectives.

Results

Approximately 59% of the study population were weighed at birth. This prevalence rate varied widely across the 16 countries, ranging from 23% in Chad to 94% in Gabon. The study documents a positive association between higher socioeconomic status and the probability of being weighed at birth. Specifically, older women and women with higher education and wealth were more likely to weigh their newborns at birth. Also, women who delivered at healthcare facilities and those who used antenatal care had a higher likelihood of weighing their children at birth. Urban residents were more likely to weigh their children at birth. On the contrary, the likelihood of weighing a child at birth decreases with parity.

Conclusion

The study highlights the need to target pregnant women of lower socioeconomic status for interventions aimed at averting severe morbidity and mortality occasioned by conditions of low birthweight.

Background

Birthweight is the first weight of the foetus or newborn measured after birth [1]. It can be categorized into three: low birthweight (birthweight ≤ 2.5 kg), normal birthweight (birthweight between 2.5 kg – 4.0 kg), and macrosomia or high birthweight (birthweight > 4.0 kg) [2,3]. A child’s birthweight is an essential indicator of their health and development, as it can affect their short- and long-term outcomes [4]. For instance, low birthweight babies are at a higher risk of developing chronic diseases [5], stunted growth [6], lower IQ [7], and reduced life expectancy [8]. High birthweight is associated with high risks for certain malignancies in childhood, hypertension in childhood, psychiatric disorders, type 1 and 2 diabetes, breast cancer, and obesity [911].

Given the risk factors associated with high and low birthweight, the WHO recommends that babies be weighed during postnatal care [12]. Weighing children at birth has several merits. First, knowledge about the birthweight provides vital information about a child’s health [5]. It guides medical care and interventions, such as medications and feeding plans, to promote the best possible outcomes for the child’s health and development. For instance, babies with low or high birthweight may need to be fed differently or be given particular medications compared to babies with normal birthweight. Second, weighing newborns helps monitor the prevalence of low or high birthweight [8]. Third, a child’s birthweight can give important information about the mother’s health. Studies have shown that mothers who have poor nutrition, anaemic conditions, and are underweight are more likely to have low birthweight babies [13,14]. Fourth, studies relating to a child’s birthweight have often been centred around the factors that influence a child’s birthweight [1520]. Researchers were able to conduct these studies because the children were weighed at birth and their birthweights recorded. These studies could not have been undertaken if the children had not been weighed at birth.

The challenge, however, is that many newborns are not weighed at birth. For instance, in 2015, nearly one-third of newborns (39.7 million) globally were not weighed at birth, with Africa recording the highest percentage of newborns without a recorded birthweight (51.7%, or 21.5 million) [8]. This situation places a significant challenge on monitoring the prevalence of low or high birthweight and the health of newborns due to the lack of birthweight data for many children. This study, therefore, aims to investigate the factors associated with weighing a child at birth in sub-Saharan Africa (SSA).

Various factors, including individual sociodemographic, maternal, household, and community-level factors, can influence the decision to weigh a child at birth. Understanding these factors can guide policymakers in implementing policies that will encourage the weighing of newborns. To the best of our knowledge, there has been no published literature on this topic. This study is the first to explore the factors influencing the decision to weigh newborns.

Methods

Data source

The study used data from the Demographic and Health Surveys (DHS) of 16 countries in SSA conducted from 2014 to 2021 (these are countries with high neonatal mortality rates for which data were available). The DHS is a nationwide survey conducted in over 85 low- and middle-income countries worldwide and follows a consistent protocol and terminology across all countries [21]. It employs a structured questionnaire to gather information on various health indicators, including maternal and child health, fertility, family planning utilization, morbidity, and mortality [21]. The DHS uses a two-stage sampling technique to collect data, starting with selecting enumeration areas based on each country’s sampling frame, followed by the selection of households from each enumeration area. Detailed information on the sampling and data collection methods can be found in the work of Aliaga and Ren [22].

This study employed the children’s dataset (KR file) from the DHS surveys (see S1 Appendix). The KR file contains a single entry for each child born to the interviewed women within the five years preceding the survey [23]. The total sample size of children (aged 0–5 years) from the sixteen countries in the specified duration was 183,541.

Variables

The study’s outcome variable is whether the child was weighed at birth. In the survey, the respondents were asked if the child was weighed at birth. The response was coded as “1 = Yes” and “0 = No” for children who were weighed and those who were not weighed at birth, respectively.

The study used a total of 13 explanatory variables. The variables include the respondent’s age, woman’s highest level of education, marital status, residence, parity, decisions about woman’s health, used antenatal care (ANC), place of delivery, covered by insurance, household wealth status, birth type, sex of the child, currently working status and distance to a healthcare facility. Respondent’s age was coded on a five-interval scale from 15 to 49. Women’s education was coded as “none”, “primary”, “secondary”, and “higher”. Marital status was coded as “married” and “otherwise”. The residence was coded as “rural” and “urban”. Parity indicates the number of times the woman has had a live birth. Decisions about women’s health were coded as “woman alone”, “together with partner/husband”, and “husband/partner alone”. ANC use was coded as “yes” and “no”. The place of delivery (childbirth) was coded as “health facility” and “otherwise”. Covered by insurance was coded as “yes” and “no”. Household wealth status was coded as “poorest”, “poorer”, “middle”, “richer”, and “richest”. The birth type was coded as “single birth” and “multiple births”. Child sex was coded as “male” and “female”. Distance to healthcare facilities was coded as “a big problem” and “not a big problem” (in the survey, the women were asked whether distance to the healthcare facility was a big problem or not a big problem).

The year variable (the year in which the survey was conducted) was initially included in the model to account for potential temporal effects. However, we found that it was perfectly collinear with the country variable. Given this collinearity, the year variable was omitted from the final model. Furthermore, the model did not include birth order due to collinearity with the parity variable.

Data analysis

The data were analysed using STATA version 16. Frequency tables were used to describe the data (Table 2). Given the binary nature of the dependent variable, the study applied logistic regressions to evaluate the determinants of measuring a child’s weight at birth [24]. First, a bivariate logistic regression analysis was conducted to estimate the unadjusted odds ratios (ORs) for each determinant. Afterwards, a multivariable logistic regression was performed to estimate the adjusted odds ratios (AORs) for all determinants, considering clustering (at the country level) and sampling weights. We handled missing data using listwise deletion; thus, observations with missing values in any of the variables included in the regression model were excluded from the analysis. This approach ensures consistency across all model estimates.

Table 2. Descriptive statistics of the sample.

Variable Pooled Sample Weighed Not Weighed
Frequency (%) Frequency (%) Frequency (%) χ2/ Diff.t-test
Child’s Characteristics
 Weighed at birth (n = 183541)
  Yes 108892 (59.33)
  No 74649 (40.67)
  Missing = 0 (0.00%)
 Child’s sex (n = 183541)
  Male 93104 (50.73) 55527 (50.99) 37577 (50.34) 0.006
  Female 90437 (49.27) 53365 (49.01) 37072 (49.66)
  Missing = 0 (0.00%)
 Birth type (n = 183541)
  Single birth 177062 (96.47) 104721 (96.17) 72350 (96.92) <0.001
  Multiple births 6473 (3.53) 4173 (3.83) 2301 (3.08)
  Missing = 0 (0.00%)
Mother’s Characteristics
 Age (n = 183541)
  15–19 11510 (6.27) 6733 (6.18) 4777 (6.40) <0.001
  20–24 41277 (22.49) 24796 (22.77) 16481 (22.08)
  25–29 49173 (26.79) 29188 (26.80) 19985 (26.77)
  30–34 38206 (20.82) 23069 (21.19) 15137 (20.28)
  35–39 27072 (14.75) 16233 (14.91) 10839 (14.52)
  40–44 12267 (6.68) 6885 (6.32) 5382 (7.21)
  45–49 4036 (2.20) 1988 (1.83) 2048 (2.74)
 Missing = 0 (0.00%)
 Level of education (n = 183539)
  None 73968 (40.30) 29790 (27.36) 44178 (59.18) <0.001
  Primary 59385 (32.36) 39865 (36.61) 19520 (26.15)
  Secondary 43334 (23.61) 33059 (30.36) 10277 (13.77)
  Higher 6853 (3.73) 6179 (5.68) 674 (0.90)
  Missing = 2 (0.00%)
 Marital Status (n = 183541)
  Married 136961 (74.62) 78307 (71.91) 58654 (78.57) <0.001
  Otherwise 46580 (25.38) 30585 (28.09) 15995 (21.43)
  Missing = 0 (0.00%)
 Residence (n = 183541)
  Urban 58753 (32.01) 45620 (41.89) 13123 (17.58) <0.001
  Rural 124798 (67.99) 63272 (58.11) 61526 (82.42)
  Missing = 0 (0.00%)
 Parity (n = 183541) Mean = 3.91 Mean = 3.53 Mean = 4.45 <0.001
  Missing = 0 (0.00%)
 Health decisions (n = 159575)
  Alone 26163 (16.40) 17312 (18.67) 8851 (13.24) <0.001
  Together with partner/husband 63640 (39.88) 39815 (42.94) 23825 (35.64)
  Husband/partner alone 69772 (43.72) 35600 (38.39) 34172 (51.12)
  Missing = 23966 (13.06%)
 Used ANC (n = 125712)
  Yes 109568 (87.16) 77486 (97.95) 32082 (68.84) <0.001
  No 16144 (12.84) 1625 (2.05) 14519 (31.16)
  Missing = 57829 (31.51%)
 Place of delivery (n = 183530)
  Health facility 112413 (61.25) 99857 (91.71) 12556 (16.82) <0.001
  Otherwise 71117 (38.75) 9028 (8.29) 62089 (83.18)
  Missing = 11 (0.01%)
 Insurance (n = 177413)
  Yes 15077 (8.50) 12689 (12.18) 2388 (3.26) <0.001
  No 162336 (91.50) 91489 (87.82) 70847 (96.74)
  Missing = 6128 (3.34%)
 Distance to a facility (n = 183535)
  A big problem 71538 (38.98) 35623 (32.72) 35915 (48.11) <0.001
  Not a big problem 111997 (61.02) 73265 (67.28) 38732 (51.89)
  Missing = 6 (0.00%)
 Currently working (n = 183,525)
  Yes 117785 (64.18) 71339 (65.52) 46446 (62.22)
  No 65740 (35.82) 37540 (34.48) 28200 (37.78) <0.001
 Currently working (n = 183,525)
Household Characteristics
 Wealth status (n = 183541)
  Poorest 48380 (26.36) 18561 (17.05) 29819 (39.95) <0.001
  Poorer 41210 (22.45) 20871 (19.17) 20339 (27.25)
  Middle 36739 (20.02) 22903 (21.03) 13836 (18.53)
  Wealthier 30732 (16.74) 23032 (21.15) 7700 (10.31)
  Wealthiest 26480 (14.43) 23525 (21.60) 2955 (3.96)
  Missing = 0 (0.00%)

Prior to the regression analysis, we conducted a diagnostic test for collinearity between the independent variables by looking at the variance inflation factor (VIF) and tolerance indices (TI) of the independent variables. VIF and TI are measures used to assess the level of multicollinearity between the ith independent variable and other independent variables in a regression model [25]. VIFs above 5 and TIs less than 0.20 are considered signs of multi-collinearity [26]. The VIFs for all the independent variables used in the study were below 5. Similarly, the TIs were above 0.20. These results are provided in S2 Appendix.

Ethical consideration

The data used for this study, Demographic and Health Survey (DHS) is secondary, and its usage does not require ethical clearance. Measure DHS, which is responsible for undertaking standardized Demographic and Health Surveys in over 90 countries, duly obtained ethical clearance from the requisite institutions in all 16 countries included in this study, as well as the Institutional Review Board of the ICF International. In this regard, ethical approval and consent of participants to participate in the study are not applicable. It is worth noting that all data are anonymous and confidential, so there is no way of identifying individuals in the database.

Results

Descriptive statistics

As shown in Table 1, the sample size for the study was 183,541. Almost 60% of the children were weighed at birth. Rwanda had the highest percentage of children weighed at birth (95.12%), whereas Ethiopia had the lowest (27.48%). Most of the countries recorded a less than 70% prevalence of babies weighed at birth (Angola – 55.14%; Cameroon – 69.19%; Ethiopia – 27.48%; Gambia 63.81%; Guinea – 51.06%; Kenya – 59.51%; Liberia – 65.83%; Madagascar – 38.53%; Malawi – 52.66%; Nigeria – 29.28%).

Table 1. Sample size characteristics.

Country Year of
survey
Number of
children
% of Children
weighed at birth
Angola 2015-2016 14322 55.14
Benin 2017-2018 13589 76.48
Cameroon 2018 9733 69.19
Ethiopia 2016 10641 27.48
Gambia 2019-2020 5447 63.81
Ghana 2014 8362 86.04
Guinea 2018 7951 51.06
Kenya 2014 9967 59.51
Liberia 2019-2020 5704 65.83
Madagascar 2021 12499 38.53
Malawi 2015-2016 9940 52.66
Mali 2018 17286 91.7
Nigeria 2018 33924 29.28
Rwanda 2019-2020 8092 95.12
Senegal 2019 6125 76.91
Zambia 2018 9959 83.2
Total 183541 59.33

Table 2 presents the results of the descriptive summary of the sample. It shows that most of the children are males (50.73%). Also, a higher proportion of the respondents are between 25 and 29 years old (26.79%). Likewise, most of the respondents were married (74.62%), rural residents (67.99%), had a single birth (96.47%), used ANC (87.16%), and reported that distance to a healthcare facility was not a big problem (61.02%). Most of the respondents did not have insurance (91.5%).

Furthermore, most of the children who were weighed at birth were delivered in a healthcare facility (91.71%), whereas those who were not weighed were delivered elsewhere (83.18%), mostly at home (81.74%). Similarly, a higher proportion of those who weighed their children had primary education (36.61%), whereas those who did not weigh their children had no education (59.18%). Likewise, a higher proportion of those who weighed their children belonged to the wealthiest wealth category (21.6%), whereas those who did not weigh their children belonged to the poorest category (39.95%). Also, the mean parity of those who did not weigh their children was higher (4.45) than those who weighed their children (3.53).

Determinants of weighing children at birth

Table 3 presents the findings from both the bivariate and multivariable logistic regression analyses. Results of the multivariable logistic regression show that age, parity, place of delivery, residence, education, wealth status, the person(s) who decides on the woman’s healthcare, ANC utilisation, distance to a health facility, and having insurance were significant determinants of weighing children at birth. The odds of weighing children at birth for respondents aged between 20–24, 25–29, 30–34, 35–39, 40–44, and 45–49 were respectively 1.14 (95% CI = 1.01–1.29), 1.30 (95% CI = 1.03–1.63), 1.57 (95% CI = 1.17–2.09), 1.85 (95% CI = 1.35–2.54), 1.91 (95% CI = 1.32–2.76), and 1.67 (95% CI = 1.14–2.44) times higher than those between the ages of 15–19. Furthermore, relative to the uneducated, the odds of weighing children at birth were 1.38 (95% CI = 1.19–1.60), 1.64 (95% CI = 1.41–1.91), and 2.68 (95% CI = 2.33–3.08) times higher for women with primary, secondary, and higher education, respectively. Similarly, the probability of weighing children at birth was 1.20 (95% CI = 1.07–1.35), 1.48 (95% CI = 1.22–1.78), 2.05 (95% CI = 1.56–2.70), and 3.91 (95% CI = 2.96–5.17) times higher for those from poorer, middle, wealthier and wealthiest households, respectively, compared to those from the poorest households. Women who delivered at healthcare facilities were more likely to weigh their children at birth (AOR = 52.29, 95% CI = 38.43–71.16). Similarly, women who used ANC during pregnancy were more likely to weigh their children at birth (AOR = 4.62, 95% CI = 3.76–5.67). Urban residents were more likely to weigh their children at birth (AOR = 2.29, 95% CI = 1.79–2.91) than rural residents. Also, the insured are more likely to weigh their children at birth (AOR = 1.32, 95% CI = 1.09–1.61). In addition, women who make decisions about their healthcare alone and those who decide jointly with their husbands/partners are 1.28 (95% CI = 1.04–1.57) and 1.22 (95% CI = 1.01–1.46) times more likely than women whose husbands/partners alone make decisions about their healthcare. Furthermore, those who reported that distance to the healthcare facility is not a big problem were more likely to weigh their children (AOR = 1.09, 95% CI = 1.00–1.19) than their counterparts who had difficulty accessing the healthcare facility. Moreover, the likelihood of weighing children at birth decreases as parity increases (AOR = 0.94, 95% CI = 0.90–0.98). Furthermore, children from other countries are less likely to be weighed compared to children from Rwanda.

Table 3. Determinants of weighing children at birth in sub-Saharan Africa.

Variables Unadjusted OR Adjusted OR
Child’s Characteristics
 Child sex (Ref: Male)
  Female 0.97 (0.96 - 1.00)** 1.02 (0.97 - 1.07)
 Birth type (Ref: Single)
  Multiple 1.21 (1.03 - 1.41)** 1.03 (0.89 - 1.20)
Mother’s Characteristics
 Age at birth (Ref: 15–19)
  20–24 1.10 (0.95 - 1.28) 1.14 (1.01 - 1.29)**
  25–29 1.08 (0.83 - 1.40) 1.30 (1.03 - 1.63)**
  30–34 1.13 (0.84 - 1.50) 1.57 (1.17 - 2.09)***
  35–39 1.11 (0.80 - 1.55) 1.85 (1.35 - 2.54)***
  40–44 0.94 (0.69 - 1.27) 1.91 (1.32 - 2.76)***
  45–49 0.68 (0.52 - 0.90)*** 1.67 (1.14 - 2.44)***
 Education level (Ref: None)
  Primary 3.11 (1.69 - 5.72)*** 1.38 (1.19 - 1.60)***
  Secondary 5.19 (3.33 - 8.07)*** 1.64 (1.41 - 1.91)***
  Higher 15.16 (8.70 - 26.41)*** 2.68 (2.33 - 3.08)***
 Marital Status (Ref: Otherwise)
  Married 0.64 (0.36 - 1.13) 1.15 (0.84 - 1.57)
 Residence (Ref: Rural)
  Urban 3.78 (2.21 - 6.47)*** 2.29 (1.79 - 2.91)***
  Parity 0.84 (0.81 - 0.87)*** 0.94 (0.90 - 0.98)***
 Health decisions (Ref: Husband/partner alone)
  Woman Alone 1.97 (1.02 - 3.82)** 1.28 (1.04 - 1.57) **
  Together with partner/husband 1.64 (0.81 - 3.32) 1.22 (1.01 - 1.46) **
 Used ANC (Ref: No)
  Yes 21.76 (16.25 - 29.15)*** 4.61 (3.76 - 5.67)***
 Place of delivery (Ref: Otherwise)
  Health facility 54.60 (34.47 - 86.48)*** 52.29 (38.43 - 71.16)***
 Insurance (Ref: No)
  Yes 4.35 (1.48 - 12.85)*** 1.32 (1.09 - 1.61)***
 Distance to health facility (Ref: big problem)
  Not a big problem 1.79 (1.14 - 2.83)** 1.09 (1.00 - 1.19)*
 Currently working (Ref: No)
  Yes 1.19 (0.77 - 1.83) 1.01 (0.94 - 1.09)
Household Characteristics
 Wealth status (Ref: Poorest)
  Poorer 1.51 (1.24 - 1.84)*** 1.20 (1.07 - 1.35)***
  Middle 2.40 (1.67 - 3.43)*** 1.48 (1.22 - 1.78)***
  Wealthier 4.52 (2.85 - 7.16)*** 2.05 (1.56 - 2.70)***
  Wealthiest 12.77 (7.89 - 20.67)*** 3.91 (2.96 - 5.17)***
Countries (Ref: Rwanda)
 Angola 0.08 (0.08 - 0.08)*** 0.43 (0.35 - 0.53)***
 Benin 0.17 (0.17 - 0.17)*** 0.21 (0.16 - 0.28)***
 Cameroon 0.11 (0.11 - 0.11)*** 0.23 (0.19 - 0.27)***
 Ethiopia 0.01 (0.01 - 0.01)*** 0.05 (0.04 - 0.06)***
 Ghana 0.10 (0.10 - 0.10)*** 0.10 (0.09 - 0.11)***
 Gambia 0.49 (0.49 - 0.49)*** 0.87 (0.70 - 1.09)
 Guinea 0.06 (0.06 - 0.06)*** 0.19 (0.15 - 0.24)***
 Kenya 0.10 (0.10 - 0.10)*** 0.22 (0.19 - 0.26)***
 Liberia 0.11 (0.11 - 0.11)*** 0.08 (0.06 - 0.10)***
 Madagascar 0.03 (0.03 - 0.03)*** 0.09 (0.08 - 0.11)***
 Mali 0.06 (0.06 - 0.06)*** 0.10 (0.07 - 0.14)***
 Malawi 0.53 (0.53 - 0.53)*** 0.57 (0.46 - 0.71)***
 Nigeria 0.02 (0.02 - 0.02)*** 0.03 (0.02 - 0.04)***
 Senegal 0.21 (0.21 - 0.21)*** 0.35 (0.27 - 0.46)***
 Zambia 0.29 (0.29 - 0.29)*** 0.35 (0.28 - 0.44)***
Interactions
 Residence & Birthplace (Ref: Rural & Otherwise)
  Urban*Health facility 0.46 (0.36 - 0.59)***
 ANC & Birthplace (Ref: No ANC & Otherwise)
  Used ANC* Health facility 0.69 (0.54 - 0.87)***
 Residence & Education ((Ref: Rural & No education)
  Urban*Primary 1.13 (0.93 - 1.38)
  Urban*Secondary 1.37 (1.11 - 1.70)***
  Urban*Higher 1.44 (1.07 - 1.94)**
Constant 0.13 (0.10 - 0.17)***
Log pseudolikelihood −2.821e + 10
Pseudo R2 0.59
Observations 102,709

Note: OR = odds ratio; Ref = Reference group. Sampling weights and clustering (at country level) accounted for in the regression analysis. 95% confidence interval (CI) in parentheses.

***

p < 0.01,

**

p < 0.05,

*

p < 0.10.

The interactions between residence and place of birth showed that urban residents who give birth in healthcare facilities are 54.84 times more likely to weigh their children compared to rural residents who give birth at other places. Similarly, women who used ANC services and gave birth in a healthcare facility were 166.69 times more likely to weigh their children than those who did not use ANC and gave birth elsewhere. Also, compared to rural residents with no education, urban residents with secondary levels of education and urban residents with higher levels of education are 5.12 and 8.80 (respectively) times more likely to weigh their children.

Discussion

The study examined the factors associated with weighing a child at birth using the most recent DHS data from 16 SSA countries. We found that older women were more likely to weigh their children than younger women. Studies have found that older women have a higher chance of encountering complications during pregnancy, which could have an adverse effect on their children [25,26]. Knowing this information, older women may want to weigh their children to safeguard their health.

Educated women were more likely to weigh their children than uneducated women. This finding may be because the educated are better informed about the benefits of weighing children at birth than the uneducated. For instance, women with higher levels of education may learn about the importance of weighing children at birth. Moreover, studies have documented the correlation between education and health outcomes for women and children [2729].

Parity was negatively correlated with the odds of weighing a child. The study revealed that the likelihood of weighing a child at birth decreases as parity increases. This finding may be linked with the observation that women with more pregnancy and birthing experience can often produce healthy babies [30,31]. Therefore, women with more parity may not see the need to weigh their children.

The results from the study further revealed that women covered by health insurance are more likely to weigh their children at birth. Health insurance may cover the cost of healthcare services, which include weighing a child, hence encouraging women, especially those with low incomes, to weigh their children. Moreover, insurance increases access to healthcare services [3234]; hence, women with insurance may be more likely to use healthcare services such as weighing their children at birth.

The study further revealed a positive association between wealth status and weighing children at birth. The likelihood of weighing a child at birth increases with household wealth. One possible explanation behind this finding could be the cost of transportation to healthcare facilities. The poor may be unable to afford the cost of transporting their babies to healthcare facilities to have their weight checked, unlike the wealthy, who can afford it. Another possible explanation may be that low-income families prioritize meeting their fundamental daily necessities, resulting in fewer resources for healthcare (such as weighing their babies) compared to affluent households. This finding (the positive correlation between wealth and weighing of children at birth) suggests implementing anti-poverty measures to encourage weighing children at birth.

The use of ANC was also positively correlated with the weighing of children at birth. This finding may be linked to the components of ANC, which include health education and promotion, prevention and management of pregnancy-related or concurrent diseases, and risk detection [35]. Thus, women who use ANC are educated or informed about the importance of weighing children at birth, perhaps explaining why they have a higher chance of weighing their children.

Place of residence also emerged as a significant determinant of weighing children at birth. The study found that rural residents are less likely to weigh their children. Individuals who live in urban areas have better access to a range of healthcare facilities and healthcare personnel, which makes it easier for them to access healthcare services [36], including the weighing of their children.

Women who gave birth at healthcare facilities were more likely to weigh their children at birth. There are two possible explanations for this finding. The first relates to the availability of resources at the healthcare facilities, such as the tools/equipment used to weigh children and the personnel who can weigh the children. The second could be linked to the fact that women who deliver at healthcare facilities are more likely to receive postnatal care, which also includes weighing children [37,38].

One of the strengths of this study is that it is the first to investigate the factors that influence the decision to weigh a child at birth. This is a significant contribution to the literature, given that there has been no published literature on this topic. Another strength of this study is that it used nationally representative data from 16 sub-Saharan African countries to examine the factors influencing the decision to weigh a child at birth. Therefore, lessons from this study can be relevant to other countries in sub-Saharan Africa (due to the similarity in the healthcare systems and population characteristics among sub-Saharan African countries).

One limitation of this study is that potential supply-side predictors such as the healthcare facility, personnel, and weighing equipment availability were not accounted for due to data limitations. Future studies can explore the extent to which these supply-side variables influence the decision to weigh a newborn. Another limitation is that the study only establishes association, not causality. Nonetheless, the study offers a foundation for more rigorous analysis in future studies.

Conclusion

The study investigated the factors associated with weighing a child at birth using nationally representative data from 16 SSA countries. The overall prevalence of weighing children at birth was 59%. This ranged from 27.48% in Ethiopia to 95.12% in Rwanda. Results from the study’s multivariable regression showed that old age, having an education, being married, giving birth in a healthcare facility, having insurance, using ANC, living in urban areas, having autonomy in making healthcare decisions and having a higher wealth status were positively correlated (significantly) with weighing children at birth. However, higher parity was negatively correlated (significantly) with weighing children at birth.

The study’s findings have some important policy implications. The finding that health facility delivery and using ANC positively correlate with weighing a child at birth suggests implementing policies/programs to encourage ANC use and facility delivery. One such policy could be creating awareness programs to educate women of childbearing age about the importance of using ANC and facility delivery. This can be done through local media, social media, and other media platforms. Furthermore, the study also provides support for women empowerment programmes. The statistical significance of autonomy in healthcare decisions and formal education suggests the need to institute policies promoting girl child education, such as scholarships for brilliant but needy girls. Moreover, the literature highlights the positive correlation between education and the autonomy of women in decision-making [3941]. Special considerations could be given to the poor and rural residents in adopting these interventions.

Supporting information

S1 Appendix. Data used for the Study.

(ZIP)

pone.0328463.s001.zip (19.1MB, zip)
S2 Appendix. Test for Multicollinearity.

(DOCX)

pone.0328463.s002.docx (20KB, docx)

Abbreviations

OR

Odds Ratio

AOR

Adjusted Odds Ratio

CI

Confidence Interval

ANC

Antenatal Care

SSA

Sub-Sahara Africa

DHS

Demographic and Health Survey

WHO

World Health Organisation

IQ

Intelligence Quotient

VIF

Variance Inflation Factor

TI

Tolerance Indices

Data Availability

The data is owned by a third party – Demographic and Health Survey (DHS). The data is publicly available on the DHS website (www.dhsprogram.com). The data specific to our empirical analysis in this paper has been shared as supporting information

Funding Statement

The author(s) received no specific funding for this work.

References

  • 1.WHO, UNICEF. Low birthweight: country, regional and global estimates. New York: Unicef; 2004. p. 1–31. [Google Scholar]
  • 2.Rosal MC, Wang ML, Moore Simas TA, Bodenlos JS, Crawford SL, Leung K, et al. Predictors of gestational weight gain among white and latina women and associations with birth weight. J Pregnancy. 2016;2016:8984928. doi: 10.1155/2016/8984928 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 3.Said AS, Manji KP. Risk factors and outcomes of fetal macrosomia in a tertiary centre in Tanzania: a case-control study. BMC Pregnancy Childbirth. 2016;16(1):243. doi: 10.1186/s12884-016-1044-3 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 4.Law CM. Significance of birth weight for the future. Arch Dis Child Fetal Neonatal Ed. 2002;86(1):F7-8. doi: 10.1136/fn.86.1.f7 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 5.Risnes KR, Vatten LJ, Baker JL, Jameson K, Sovio U, Kajantie E, et al. Birthweight and mortality in adulthood: a systematic review and meta-analysis. Int J Epidemiol. 2011;40(3):647–61. doi: 10.1093/ije/dyq267 [DOI] [PubMed] [Google Scholar]
  • 6.Christian P, Lee SE, Donahue Angel M, Adair LS, Arifeen SE, Ashorn P, et al. Risk of childhood undernutrition related to small-for-gestational age and preterm birth in low- and middle-income countries. Int J Epidemiol. 2013;42(5):1340–55. doi: 10.1093/ije/dyt109 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 7.Gu H, Wang L, Liu L, Luo X, Wang J, Hou F, et al. A gradient relationship between low birth weight and IQ: A meta-analysis. Sci Rep. 2017;7(1):18035. doi: 10.1038/s41598-017-18234-9 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 8.UNICEF-WHO. UNICEF-WHO low birthweight estimates: levels and trends 2000–2015. Geneva; 2019. [Google Scholar]
  • 9.Parsons TJ, Power C, Logan S, Summerbell CD. Childhood predictors of adult obesity: a systematic review. Int J Obes. 1999;23(8):S1-107. [PubMed] [Google Scholar]
  • 10.Dabelea D, Pettitt DJ, Hanson RL, Imperatore G, Bennett PH, Knowler WC. Birth weight, type 2 diabetes, and insulin resistance in Pima Indian children and young adults. Diabetes Care. 1999;22(6):944–50. doi: 10.2337/diacare.22.6.944 [DOI] [PubMed] [Google Scholar]
  • 11.Magnusson Å, Laivuori H, Loft A, Oldereid NB, Pinborg A, Petzold M. The association between high birth weight and long-term outcomes—implications for assisted reproductive technologies: a systematic review and meta-analysis. Front Pediatr. 2021;9(675775). [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 12.WHO. WHO recommendations on maternal and newborn care for a positive postnatal experience. World Health Organization. Geneva: World Health Organization; 2022. [PubMed] [Google Scholar]
  • 13.Zaveri A, Paul P, Saha J, Barman B, Chouhan P. Maternal determinants of low birth weight among Indian children: Evidence from the National Family Health Survey-4, 2015-16. PLoS One. 2020;15(12):1–15. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 14.Muthayya S. Maternal nutrition & low birth weight - what is really important? Indian J Med Res. 2009;130(5):600–8. [PubMed] [Google Scholar]
  • 15.Abubakari A, Kynast-Wolf G, Jahn A. Maternal determinants of birth weight in Northern Ghana. PLoS One. 2015;10(8):e0135641. doi: 10.1371/journal.pone.0135641 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 16.Dubois L, Girard M. Determinants of birthweight inequalities: population-based study. Pediatr Int. 2006;48(5):470–8. doi: 10.1111/j.1442-200X.2006.02256.x [DOI] [PubMed] [Google Scholar]
  • 17.Halileh S, Abu-Rmeileh N, Watt G, Spencer N, Gordon N. Determinants of birthweight: gender based analysis. Matern Child Health J. 2008;12(5):606–12. doi: 10.1007/s10995-007-0226-z [DOI] [PubMed] [Google Scholar]
  • 18.Dubois L, Girard M, Tatone-Tokuda F. Determinants of high birth weight by geographic region in Canada. Chronic Dis Can. 2007;28(1–2):63–70. [PubMed] [Google Scholar]
  • 19.Voldner N, Frey Frøslie K, Godang K, Bollerslev J, Henriksen T. Determinants of birth weight in boys and girls. Hum Ontog. 2009;3(1):7–12. doi: 10.1002/huon.200900001 [DOI] [Google Scholar]
  • 20.Nketiah-Amponsah E, Abuosi A, Arthur E. Maternal socio-economic status and childhood birth weight: a health survey in Ghana. Neonatal Care. 2012. [Google Scholar]
  • 21.Corsi DJ, Neuman M, Finlay JE, Subramanian SV. Demographic and health surveys: a profile. Int J Epidemiol. 2012;41(6):1602–13. doi: 10.1093/ije/dys184 [DOI] [PubMed] [Google Scholar]
  • 22.Aliaga A, Ren R. Cluster optimal sample size for demographic and health surveys. 7th International Conference on Teaching Statistics–ICOTS; 2006. p. 1–6. [Google Scholar]
  • 23.The Demograhic and Health Survey Program. Dataset types [Internet]; 2023. [cited 2023 Apr 25]. Available from: https://dhsprogram.com/data/dataset-types.cfm#:~:text=DatasetTypes1SurveyDataInorderto,collectedintheDHSandAISsurveys [Google Scholar]
  • 24.Long J, Freese J. Regression models for categorical dependent variables using Stata. College Station (TX): Stata Press; 2006. [Google Scholar]
  • 25.O’Brien RM. A caution regarding rules of thumb for variance inflation factors. Qual Quant. 2007;41:673–90. [Google Scholar]
  • 26.Menard S. Applied logistic regression analysis. 2nd ed. London: Sage Publications; 2001. 111 p. [Google Scholar]
  • 27.Bayrampour H, Heaman M. Advanced maternal age and the risk of cesarean birth: a systematic review. Birth. 2010;37(3):219–26. doi: 10.1111/j.1523-536X.2010.00409.x [DOI] [PubMed] [Google Scholar]
  • 28.Londero AP, Rossetti E, Pittini C, Cagnacci A, Driul L. Maternal age and the risk of adverse pregnancy outcomes: a retrospective cohort study. BMC Pregnancy Childbirth. 2019;19(1):1–10. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 29.Zajacova A, Lawrence EM. The relationship between education and health: reducing disparities through a contextual approach. Annu Rev Public Health. 2018;39:273–89. doi: 10.1146/annurev-publhealth-031816-044628 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 30.Hahn RA, Truman BI. Education improves public health and promotes health equity. Int J Health Serv. 2015;45(4):657–78. doi: 10.1177/0020731415585986 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 31.Raghupathi V, Raghupathi W. The influence of education on health: an empirical assessment of OECD countries for the period 1995-2015. Arch Public Heal. 2020;78(1):1–18. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 32.Jewell RT, Triunfo P. The impact of prenatal care on birthweight: the case of Uruguay. Health Econ. 2006;15(11):1245–50. doi: 10.1002/hec.1121 [DOI] [PubMed] [Google Scholar]
  • 33.Manyeh AK, Kukula V, Odonkor G, Ekey RA, Adjei A, Narh-Bana S, et al. Socioeconomic and demographic determinants of birth weight in southern rural Ghana: evidence from Dodowa Health and Demographic Surveillance System. BMC Pregnancy Childbirth. 2016;16(1):160. doi: 10.1186/s12884-016-0956-2 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 34.Zhang F, Shi X, Zhou Y. The impact of health insurance on healthcare utilization by migrant workers in China. Int J Environ Res Public Health. 2020;17(6):1852. doi: 10.3390/ijerph17061852 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 35.Wang W, Temsah G, Mallick L. The impact of health insurance on maternal health care utilization: evidence from Ghana, Indonesia and Rwanda. Health Policy Plan. 2017;32(3):366–75. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 36.Farrell CM, Gottlieb A. The effect of health insurance on health care utilization in the justice-involved population: United States, 2014-2016. Am J Public Health. 2020;110(S1):S78-84. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 37.WHO. WHO recommendations on antenatal care for a positive pregnancy experience. Geneva: World Health Organization; 2016. [PubMed] [Google Scholar]
  • 38.Banerjee S. Determinants of rural-urban differential in healthcare utilization among the elderly population in India. BMC Public Health. 2021;21(1):939. doi: 10.1186/s12889-021-10773-1 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 39.Fekadu GA, Ambaw F, Kidanie SA. Facility delivery and postnatal care services use among mothers who attended four or more antenatal care visits in Ethiopia: further analysis of the 2016 demographic and health survey. BMC Pregnancy Childbirth. 2019;19(1):64. doi: 10.1186/s12884-019-2216-8 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 40.Chungu C, Makasa M, Chola M, Jacobs CN. Place of delivery associated with postnatal care utilization among childbearing women in Zambia. Front Public Health. 2018;6:94. doi: 10.3389/fpubh.2018.00094 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 41.Sultana AM. Factors effect on women autonomy and decision-making power within the household in rural communities. J Appl Sci Res. 2011;7(1):18–22. [Google Scholar]

Decision Letter 0

George Kuryan

Dear Dr. Nketiah-Amponsah,

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.

Please submit your revised manuscript by May 18 2024 11:59PM. If you will need more time than this to complete your revisions, please reply to this message or contact the journal office at plosone@plos.org . When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.

  • A rebuttal letter that responds to each point raised by the academic editor and reviewer(s). You should upload this letter as a separate file labeled 'Response to Reviewers'.

  • A marked-up copy of your manuscript that highlights changes made to the original version. You should upload this as a separate file labeled 'Revised Manuscript with Track Changes'.

  • An unmarked version of your revised paper without tracked changes. You should upload this as a separate file labeled 'Manuscript'.

If you would like to make changes to your financial disclosure, please include your updated statement in your cover letter. Guidelines for resubmitting your figure files are available below the reviewer comments at the end of this letter.

If applicable, we recommend that you deposit your laboratory protocols in protocols.io to enhance the reproducibility of your results. Protocols.io assigns your protocol its own identifier (DOI) so that it can be cited independently in the future. For instructions see: https://journals.plos.org/plosone/s/submission-guidelines#loc-laboratory-protocols . Additionally, PLOS ONE offers an option for publishing peer-reviewed Lab Protocol articles, which describe protocols hosted on protocols.io. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols .

We look forward to receiving your revised manuscript.

Kind regards,

George Kuryan

Academic Editor

PLOS ONE

Journal Requirements:

1. When submitting your revision, we need you to address these additional requirements.

Please ensure that your manuscript meets PLOS ONE's style requirements, including those for file naming. The PLOS ONE style templates can be found at 

https://journals.plos.org/plosone/s/file?id=wjVg/PLOSOne_formatting_sample_main_body.pdf and 

https://journals.plos.org/plosone/s/file?id=ba62/PLOSOne_formatting_sample_title_authors_affiliations.pdf

2. When completing the data availability statement of the submission form, you indicated that you will make your data available on acceptance. We strongly recommend all authors decide on a data sharing plan before acceptance, as the process can be lengthy and hold up publication timelines. Please note that, though access restrictions are acceptable now, your entire data will need to be made freely accessible if your manuscript is accepted for publication. This policy applies to all data except where public deposition would breach compliance with the protocol approved by your research ethics board. If you are unable to adhere to our open data policy, please kindly revise your statement to explain your reasoning and we will seek the editor's input on an exemption. Please be assured that, once you have provided your new statement, the assessment of your exemption will not hold up the peer review process.

[Note: HTML markup is below. Please do not edit.]

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. Is the manuscript technically sound, and do the data support the conclusions?

Reviewer #1: Yes

**********

2. Has the statistical analysis been performed appropriately and rigorously? -->?>

Reviewer #1: Yes

**********

3. Have the authors made all data underlying the findings in their manuscript fully available??>

The PLOS Data policy

Reviewer #1: No

**********

4. Is the manuscript presented in an intelligible fashion and written in standard English??>

Reviewer #1: Yes

**********

Reviewer #1:  I appreciate the authors highlighting health disparities by emphasizing the importance of weighing newborn babies, and how it will help health organizations and policy administrations address neonatal complications and mortalities.

Introduction: No changes required

Methods:

• The study conducted both unadjusted and adjusted analyses. In the adjusted analysis, did the authors explore whether there were any interaction effects?

• Additionally, did the authors identify any high correlations between independent variables? For example, are women who are wealthy more likely to live in urban areas and also be well-educated?

Results and Discussion:

• Page 5, line 21 to 27: I see which African country has the highest and lowest percentage of children weighted at birth. However, I don’t see authors mentioning why that is the case.

• This also raises the question of why the authors did not include the country as an independent variable in the adjusted analysis. Despite the similarities within sub-Saharan countries, health policy and care delivery might differ among these countries, potentially affecting the final response variable, i.e., recording infant weight after birth.

• Table 1 – consider removing the column ‘% of children not weighted at birth’ as it seems redundant.

• The numbers in Table 2 don’t add up to 100%. There is a small margin of error for some categories. For example, when adding the percentages for 'weighed' and 'not weighed' for both male and female genders, it does not exactly equal the pooled sample total. The same issue arises for birth type. I encourage the authors to double-check the numbers."

Conclusion: no changes required.

**********

what does this mean? ). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy

Reviewer #1: No

**********

[NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.]

While revising your submission, please upload your figure files to the Preflight Analysis and Conversion Engine (PACE) digital diagnostic tool, https://pacev2.apexcovantage.com/ . PACE helps ensure that figures meet PLOS requirements. To use PACE, you must first register as a user. Registration is free. Then, login and navigate to the UPLOAD tab, where you will find detailed instructions on how to use the tool. If you encounter any issues or have any questions when using PACE, please email PLOS at figures@plos.org . Please note that Supporting Information files do not need this step.

PLoS One. 2025 Jul 22;20(7):e0328463. doi: 10.1371/journal.pone.0328463.r002

Author response to Decision Letter 1


14 May 2024

Dear Editor,

Thank you sincerely for the positive feedback and the meticulous review and constructive comments on our manuscript. The comments have been invaluable in improving the quality of our manuscript.

In response to the reviewer comments, we have diligently implemented the necessary corrections throughout the manuscript. It is important to note that these revisions may have resulted in changes to line and page numbers. Our commitment to enhancing the clarity and precision of our submission has been paramount in making these adjustments.

Please find below our responses to the reviewers’ comments; the comments are italicized while the responses are highlighted in read. Moreover, the ensuing corrections or changes in the manuscript are tracked for easy recognition.

Reviewer #1:

Comment

I appreciate the authors highlighting health disparities by emphasizing the importance of weighing newborn babies, and how it will help health organizations and policy administrations address neonatal complications and mortalities.

Response

No changes required. Many thanks for the compliment.

Comment

Methods:

The study conducted both unadjusted and adjusted analyses. In the adjusted analysis, did the authors explore whether there were any interaction effects?

Response

Many thanks for this insightful suggestion. Accordingly, we have included interactions in the adjusted analysis. We interacted place of residence and birthplace, using ANC and birthplace and education and place of residence (see the revised estimates in Table 3 for the results on pages 9 and 10).

Comments

Additionally, did the authors identify any high correlations between independent variables? For example, are women who are wealthy more likely to live in urban areas and also be well-educated?

Response

Thank you for drawing our attention to the need to provide evidence on the extent of collinearity between the independent variables. We performed a diagnostic test for collinearity between the independent variables by looking at the variance inflation factor (VIF) and tolerance indices (TI) of the independent variables (see page 5 lines 20 to 26).

Comment

Results and Discussion:

• Page 5, line 21 to 27: I see which African country has the highest and lowest percentage of children weighted at birth. However, I don’t see authors mentioning why that is the case.

• This also raises the question of why the authors did not include the country as an independent variable in the adjusted analysis. Despite the similarities within sub-Saharan countries, health policy and care delivery might differ among these countries, potentially affecting the final response variable, i.e., recording infant weight after birth.

Response

We have addressed this concern by including the country as an independent variable in the adjusted analysis. See table 3 for the results on pages 9 and 10 and page 12 line 20 to 26 for possible explanation for the differences in the percentages of children weighed at birth across the sampled countries. For instance, in 2006, Rwanda launched a national Facility-Based Childbirth Policy (FBCP), which provides free antenatal care and facility-based delivery services. The policy led to an increase in intuitional delivery and other maternal healthcare services. Perhaps, the reason why children in Rwanda are more likely to be weighed compared to children from other countries.

Comment

Table 1 – consider removing the column ‘% of children not weighted at birth’ as it seems redundant.

Response

Many thanks. This has been duly deleted.

Comment

The numbers in Table 2 don’t add up to 100%. There is a small margin of error for some categories. For example, when adding the percentages for 'weighed' and 'not weighed' for both male and female genders, it does not exactly equal the pooled sample total. The same issue arises for birth type. I encourage the authors to double-check the numbers."

Response

Thanks for drawing our attention to this anomaly. We have made the requisite changes.

We hope our revision will meet your expectations.

Yours faithfully

Edward Nketiah-Amponsah (On behalf of co-authors)

Attachment

Submitted filename: Response to Reviewers.docx

pone.0328463.s005.docx (15.8KB, docx)

Decision Letter 1

Gbenga Kayode

Dear Dr. Nketiah-Amponsah,

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.

Please submit your revised manuscript by Mar 07 2025 11:59PM. If you will need more time than this to complete your revisions, please reply to this message or contact the journal office at plosone@plos.org . When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.

  • A rebuttal letter that responds to each point raised by the academic editor and reviewer(s). You should upload this letter as a separate file labeled 'Response to Reviewers'.

  • A marked-up copy of your manuscript that highlights changes made to the original version. You should upload this as a separate file labeled 'Revised Manuscript with Track Changes'.

  • An unmarked version of your revised paper without tracked changes. You should upload this as a separate file labeled 'Manuscript'.

If you would like to make changes to your financial disclosure, please include your updated statement in your cover letter. Guidelines for resubmitting your figure files are available below the reviewer comments at the end of this letter.

If applicable, we recommend that you deposit your laboratory protocols in protocols.io to enhance the reproducibility of your results. Protocols.io assigns your protocol its own identifier (DOI) so that it can be cited independently in the future. For instructions see: https://journals.plos.org/plosone/s/submission-guidelines#loc-laboratory-protocols . Additionally, PLOS ONE offers an option for publishing peer-reviewed Lab Protocol articles, which describe protocols hosted on protocols.io. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols .

We look forward to receiving your revised manuscript.

Kind regards,

Gbenga Kayode

Academic Editor

PLOS ONE

Additional Editor Comments:

Although both reviewers recommended the manuscript for acceptance, I would like the authors to address the following comments before we consider publication.

1) The authors should explain why the year of data collection was not included in the analysis.

2) Given the hierarchical nature of the data, the authors should clarify why a hierarchical or multilevel model was not used to analyze the data.

3) The authors should clarify why health indicators from previous births were not considered.

4) For each variable in Table 2, the authors should present the percentages of missing data.

5) The authors should clarify why they did not consider the weight of the data in their analysis.

6) The authors should clarify why significant factors like employment status and birth order were excluded from the analysis.

7) The authors should clarify how they handled missing data.

[Note: HTML markup is below. Please do not edit.]

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

Reviewer #1: All comments have been addressed

Reviewer #2: All comments have been addressed

**********

2. Is the manuscript technically sound, and do the data support the conclusions??>

Reviewer #1: Yes

Reviewer #2: Yes

**********

3. Has the statistical analysis been performed appropriately and rigorously? -->?>

Reviewer #1: Yes

Reviewer #2: Yes

**********

4. Have the authors made all data underlying the findings in their manuscript fully available??>

The PLOS Data policy

Reviewer #1: Yes

Reviewer #2: Yes

**********

5. Is the manuscript presented in an intelligible fashion and written in standard English??>

Reviewer #1: Yes

Reviewer #2: Yes

**********

Reviewer #1: Page 12 line 21, there is a typo, change it to “countries”. Otherwise, the current manuscript draft reads well, and I acknowledge that all my comments have been addressed. I wish authors good luck for their future research works.

Thanks!

Reviewer #2: The manuscript have addressed all the reviewer's comments. The write up is concise and comprehensive . However, i will recommend the word"lilkelier be replaced with "most likely', otherwise, the manuscript was well written. The introduction, objectives, methodology, results and discussion were all well captured.

**********

what does this mean? ). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy

Reviewer #1: No

Reviewer #2: No

**********

[NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.]

While revising your submission, please upload your figure files to the Preflight Analysis and Conversion Engine (PACE) digital diagnostic tool, https://pacev2.apexcovantage.com/ . PACE helps ensure that figures meet PLOS requirements. To use PACE, you must first register as a user. Registration is free. Then, login and navigate to the UPLOAD tab, where you will find detailed instructions on how to use the tool. If you encounter any issues or have any questions when using PACE, please email PLOS at figures@plos.org . Please note that Supporting Information files do not need this step.

Attachment

Submitted filename: PONE-D-24-00704_R1_reviewer.pdf

pone.0328463.s004.pdf (2.3MB, pdf)
PLoS One. 2025 Jul 22;20(7):e0328463. doi: 10.1371/journal.pone.0328463.r004

Author response to Decision Letter 2


22 Feb 2025

Response to Editor's Comments

We wish to thank you and the reviewers sincerely for your constructive comments on our manuscript titled ‘Factors associated with weighing a child at birth: evidence from 16 sub-Saharan African countries’ submitted to PLOS ONE for publication consideration. The comments have been invaluable in improving the quality of our manuscript.

In response to the reviewer comments, we have diligently implemented the necessary corrections throughout the manuscript. We have addressed the comments point-by-point as far as feasible. Please find below our responses to the reviewers’ comments; the comments are boldened while the responses are italicized. Moreover, the ensuing corrections or changes in the manuscript are identified by page numbers for easy recognition whenever applicable.

1. The authors should explain why the year of data collection was not included in the analysis.

Response: The model initially included the year variable to account for potential temporal effects. However, it (year) was perfectly collinear with the country variable. Given this collinearity, the year variable was omitted from the final model. We can still show the results with the year variable if deemed necessary.

2. Given the hierarchical nature of the data, the authors should clarify why a hierarchical or multilevel model was not used to analyse the data.

Response: We acknowledge the hierarchical nature of the data, where individuals are nested within countries. To address this, we accounted for clustering and country-level heterogeneity in the following ways;

i. Clustering at the Country Level: We used clustered standard errors at the country level (vce(cluster Country)) to adjust for within-country correlation. This ensures that our standard errors are robust to potential intra-country dependencies.

ii. Country-Fixed Effects: We included country-fixed effects (i.Country) in our regression model to control for unobserved country-level characteristics that might influence the outcome variable. This approach allows us to isolate within-country variation while accounting for systematic differences across countries.

3. The authors should clarify why health indicators from previous births were not considered.

Response: Health indicators from previous births are only available for women who have had more than one birth. Including these variables would exclude women with only one birth from the analysis. Since our study is not limited to women with multiple births, we chose not to incorporate these indicators to maintain a broader and more representative and consistent sample.

4. For each variable in Table 2, the authors should present the percentages of missing data.

Response: This has been duly provided in the revised version of the manuscript. See Table 2 (pages 7 and 8)

5. The authors should clarify why they did not consider the weight of the data in their analysis.

Response: Our analysis accounted for survey sampling weights by specifying the probability weights (pweight=v005) in our regression model. See page 5, line 24.

6. The authors should clarify why significant factors like employment status and birth order were excluded from the analysis.

Response: We have included employment status (currently working variable) in the revised version of the manuscript. The model did not include birth order due to collinearity with the parity variable. We are happy to include it regardless, if deemed necessary.

7. The authors should clarify how they handled missing data.

Response: We handled missing data using listwise deletion. Thus, observations with missing values in any of the variables included in the regression model were excluded from the analysis. This approach ensures consistency across all model estimates. See page 5, lines 24 to 27.

We hope our revisions will meet your kind expectations.

Yours faithfully,

Prof. Edward Nketiah-Amponsah, PhD (on behalf of all co-authors)

Attachment

Submitted filename: Response Memo to Reviewers Comments_Birthweight Manuscript.docx

pone.0328463.s008.docx (59.3KB, docx)

Decision Letter 2

Alfredo Fort

Dear Dr. Nketiah-Amponsah,

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.

Please submit your revised manuscript by Jun 11 2025 11:59PM. If you will need more time than this to complete your revisions, please reply to this message or contact the journal office at plosone@plos.org . When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.

  • A rebuttal letter that responds to each point raised by the academic editor and reviewer(s). You should upload this letter as a separate file labeled 'Response to Reviewers'.

  • A marked-up copy of your manuscript that highlights changes made to the original version. You should upload this as a separate file labeled 'Revised Manuscript with Track Changes'.

  • An unmarked version of your revised paper without tracked changes. You should upload this as a separate file labeled 'Manuscript'.

If applicable, we recommend that you deposit your laboratory protocols in protocols.io to enhance the reproducibility of your results. Protocols.io assigns your protocol its own identifier (DOI) so that it can be cited independently in the future. For instructions see: https://journals.plos.org/plosone/s/submission-guidelines#loc-laboratory-protocols . Additionally, PLOS ONE offers an option for publishing peer-reviewed Lab Protocol articles, which describe protocols hosted on protocols.io. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols .

We look forward to receiving your revised manuscript.

Kind regards,

Alfredo Luis Fort, M.D., M.Sc., Ph.D.

Academic Editor

PLOS ONE

Journal Requirements:

Please review your reference list to ensure that it is complete and correct. If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references. Any changes to the reference list should be mentioned in the rebuttal letter that accompanies your revised manuscript. If you need to cite a retracted article, indicate the article’s retracted status in the References list and also include a citation and full reference for the retraction notice.

[Note: HTML markup is below. Please do not edit.]

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

Reviewer #2: All comments have been addressed

**********

2. Is the manuscript technically sound, and do the data support the conclusions??>

Reviewer #2: Yes

**********

3. Has the statistical analysis been performed appropriately and rigorously? -->?>

Reviewer #2: Yes

**********

4. Have the authors made all data underlying the findings in their manuscript fully available??>

The PLOS Data policy

Reviewer #2: Yes

**********

5. Is the manuscript presented in an intelligible fashion and written in standard English??>

Reviewer #2: Yes

**********

Reviewer #2: I have reviewed the revised manuscript and confirm that the author has satisfactorily addressed all the concerns and suggestions raised during the review process. The revisions have strengthened the clarity, scientific rigor, and relevance of the study. The responses to comments were clear, and the updated manuscript reflects the necessary improvements in content and structure.

I find no further issues requiring revision and recommend the manuscript for acceptance in its current form.

**********

what does this mean? ). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy

Reviewer #2: Yes:  Fatima Abubakar Ishaq

**********

[NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.]

While revising your submission, please upload your figure files to the Preflight Analysis and Conversion Engine (PACE) digital diagnostic tool, https://pacev2.apexcovantage.com/ . PACE helps ensure that figures meet PLOS requirements. To use PACE, you must first register as a user. Registration is free. Then, login and navigate to the UPLOAD tab, where you will find detailed instructions on how to use the tool. If you encounter any issues or have any questions when using PACE, please email PLOS at figures@plos.org

Attachment

Submitted filename: PONE-D-24-00704_R2 (3).pdf

pone.0328463.s006.pdf (2.5MB, pdf)
Attachment

Submitted filename: PONE-D-24-00704_R2-AF.pdf

pone.0328463.s007.pdf (3.2MB, pdf)
PLoS One. 2025 Jul 22;20(7):e0328463. doi: 10.1371/journal.pone.0328463.r006

Author response to Decision Letter 3


12 Jun 2025

We sincerely thank you for your constructive editorial comments on our manuscript titled ‘Factors associated with weighing a child at birth: evidence from 16 sub-Saharan African countries’ submitted to PLOS ONE for publication consideration. The comments have been invaluable in improving the quality of our manuscript.

In particular, we requested a colleague who is more proficient in the English language to proofread the manuscript. We have also diligently addressed all the minor but essential errors, such as omitting the percent (%) sign in some figures. Besides, we have accepted your suggested corrections in tracked changes across the manuscript. For ease of reference, we have provided the clean and tracked changes versions of the manuscript for your review.

We hope our revisions will meet your kind expectations.

Decision Letter 3

Alfredo Fort

Factors associated with weighing a child at birth: evidence from 16 sub-Saharan African countries

PONE-D-24-00704R3

Dear Dr. Nketiah-Amponsah,

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.

An invoice will be generated when your article is formally accepted. Please note, if your institution has a publishing partnership with PLOS and your article meets the relevant criteria, all or part of your publication costs will be covered. Please make sure your user information is up-to-date by logging into Editorial Manager at Editorial Manager®  and clicking the ‘Update My Information' link at the top of the page. If you have any questions relating to publication charges, please contact our Author Billing department directly at authorbilling@plos.org.

If your institution or institutions have a press office, please notify them about your upcoming paper to help maximize its impact. If they’ll be preparing press materials, please inform our press team as soon as possible -- no later than 48 hours after receiving the formal acceptance. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact onepress@plos.org.

Kind regards,

Alfredo Luis Fort, M.D., M.Sc., Ph.D.

Academic Editor

PLOS ONE

Additional Editor Comments (optional): I have added a copy of the latest version with a few suggested additions and edits to make the manuscript more understandable to general readers. Please see them in the attached file. 

Attachment

Submitted filename: PONE-D-24-00704_R3-AF.pdf

pone.0328463.s009.pdf (2.5MB, pdf)

Acceptance letter

Alfredo Fort

PONE-D-24-00704R3

PLOS ONE

Dear Dr. Nketiah-Amponsah,

I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS ONE. Congratulations! Your manuscript is now being handed over to our production team.

At this stage, our production department will prepare your paper for publication. This includes ensuring the following:

* All references, tables, and figures are properly cited

* All relevant supporting information is included in the manuscript submission,

* There are no issues that prevent the paper from being properly typeset

You will receive further instructions from the production team, including instructions on how to review your proof when it is ready. Please keep in mind that we are working through a large volume of accepted articles, so please give us a few days to review your paper and let you know the next and final steps.

Lastly, if your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact onepress@plos.org.

If we can help with anything else, please email us at customercare@plos.org.

Thank you for submitting your work to PLOS ONE and supporting open access.

Kind regards,

PLOS ONE Editorial Office Staff

on behalf of

Dr. Alfredo Luis Fort

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 Appendix. Data used for the Study.

    (ZIP)

    pone.0328463.s001.zip (19.1MB, zip)
    S2 Appendix. Test for Multicollinearity.

    (DOCX)

    pone.0328463.s002.docx (20KB, docx)
    Attachment

    Submitted filename: Response to Reviewers.docx

    pone.0328463.s005.docx (15.8KB, docx)
    Attachment

    Submitted filename: PONE-D-24-00704_R1_reviewer.pdf

    pone.0328463.s004.pdf (2.3MB, pdf)
    Attachment

    Submitted filename: Response Memo to Reviewers Comments_Birthweight Manuscript.docx

    pone.0328463.s008.docx (59.3KB, docx)
    Attachment

    Submitted filename: PONE-D-24-00704_R2 (3).pdf

    pone.0328463.s006.pdf (2.5MB, pdf)
    Attachment

    Submitted filename: PONE-D-24-00704_R2-AF.pdf

    pone.0328463.s007.pdf (3.2MB, pdf)
    Attachment

    Submitted filename: PONE-D-24-00704_R3-AF.pdf

    pone.0328463.s009.pdf (2.5MB, pdf)

    Data Availability Statement

    The data is owned by a third party – Demographic and Health Survey (DHS). The data is publicly available on the DHS website (www.dhsprogram.com). The data specific to our empirical analysis in this paper has been shared as supporting information


    Articles from PLOS One are provided here courtesy of PLOS

    RESOURCES