Nigerian Demographic Health Survey Research Articles

Long-Term Effects of Childhood Exposure to War on Domestic Violence

AbstractThis paper highlights the scarring effects of early life exposure to civil war, by examining the impact of exposure to conflict in childhood on the incidence of domestic violence in adulthood among married women. To estimate these effects, we use a difference-in-differences model which exploits variation in exposure to Nigeria’s 30-month-long civil war by year of birth and ethnicity. Our results, based on the 2008 Nigerian Demographic Health Survey, show that women exposed to the war during childhood are more likely to be victims of domestic violence in adulthood compared to those not exposed to the war, with larger effects observed for those exposed at younger ages. Additionally, we explore the mechanisms through which exposure to civil war might affect domestic violence and find some support for both the normalisation of violence and weakened bargaining power hypotheses. Understanding the root causes of domestic violence is important given the high prevalence in developing countries and the deleterious consequences for women and their children.

Assessment of the Trends and Factors Associated With Unintended Pregnancy Among Women of Reproductive Age: An Analysis of the Nigerian Demographic Health Survey Between 2008 to 2018

Background Unintended pregnancy is a global public health issue with significant adverse effects which include health and economic consequences. Globally, there were 121 million unintended pregnancies annually between 2015 and 2019 among women of reproductive age between 15 and 49 mainly due to the non-uptake of modern contraceptives, harmful norms, stigma and lack of sexual and reproductive health care and information. Methods We extracted information from the Nigeria Demographic Health Survey conducted in 2008, 2013, and 2018 to assess the trends and factors associated with unintended pregnancies among women of reproductive-aged 15–49. The descriptive summaries were presented using percentages and binomial logistic regressions for the inferential analysis. All analyses were computed using Stata 15.0 at a 5% level of significance and accounted for the complex survey nature as well as the population size. Results The study included a total of 63,040 women of reproductive age. The prevalence of unintended pregnancy was highest among adolescents aged 15–19 years (15.1%, 95% CI: 13.9–16.5) and decreased with increasing age. The pooled adjusted model revealed that women had 11% lower odds of reporting unintended pregnancies in 2013 compared to 2008. Adolescent girls (aOR 2.48; 95%CI: 2.14–2.89) and young adults (aOR 1.86; 95%CI: 1.69–2.04) have higher odds of reporting unintended pregnancies compared to older women. Also, unmarried women had 9.8 times higher odds of reporting unintended pregnancies compared to ever-married women. Conclusions The findings from this study highlight the need for further family planning educational programs and initiatives that support the uptake of effective contraceptive methods to reduce the likelihood of unintended pregnancy and improve women’s sexual and reproductive health while considering regional variations within the country to ensure tailored interventions that address specific needs within each region.

Application of machine learning methods for predicting under-five mortality: analysis of Nigerian demographic health survey 2018 dataset

BackgroundUnder-five mortality remains a significant public health issue in developing countries. This study aimed to assess the effectiveness of various machine learning algorithms in predicting under-five mortality in Nigeria and identify the most relevant predictors.MethodsThe study used nationally representative data from the 2018 Nigeria Demographic and Health Survey. The study evaluated the performance of the machine learning models such as the artificial neural network, k-nearest neighbourhood, Support Vector Machine, Naïve Bayes, Random Forest, and Logistic Regression using the true positive rate, false positive rate, accuracy, precision, F-measure, Matthew’s correlation coefficient, and the Area Under the Receiver Operating Characteristics.ResultsThe study found that machine learning models can accurately predict under-five mortality, with the Random Forest and Artificial Neural Network algorithms emerging as the best models, both achieving an accuracy of 89.47% and an AUROC of 96%. The results show that under-five mortality rates vary significantly across different characteristics, with wealth index, maternal education, antenatal visits, place of delivery, employment status of the woman, number of children ever born, and region found to be the top determinants of under-five mortality in Nigeria.ConclusionsThe findings suggest that machine learning models can be useful in predicting U5M in Nigeria with high accuracy. The study emphasizes the importance of addressing social, economic, and demographic disparities among the population in Nigeria. The study’s findings can inform policymakers and health workers about developing targeted interventions to reduce under-five mortality in Nigeria.

Multiple high-risk fertility behaviours and children under five mortality survivors among ever-married women of reproductive age in Nigeria

BackgroundMultiple high-risk fertility behaviours (MHRFBs), including maternal age < 18 or > 34 years old, a birth order 4+, and birth spacing < 24 months, can directly or indirectly affect survival outcomes among under-five children. There is a dearth of available information and data about these two phenomena in Nigeria. Thus, this study evaluates the prevalence of MHRFBs and examines the association between MHRFBs and under-five mortality survival (U5M) outcomes among ever-married women of reproductive age in Nigeria.MethodsThis study used the recent secondary datasets from the Nigerian Demographic Health Surveys conducted in 2018, with a total sample size of 10,304 women of reproductive age. The outcome variable was MHRFBs. Multivariable logistic regression analysis was employed to examine the association between U5M and MHRFBs. Odds ratios with a p-value of less than 0.05 were considered significant.ResultsIt was found that among women who had MHRFBs, U5M was prevalent, particularly in young maternal age (< 18 years) and within short birth intervals (< 24 months). The adjusted odds ratio of the association between MHRFBs and U5M shows the experience of MHRFBs, in addition to other factors such as household wealth index, type of marriage, and sex of child, to be significant predictors for U5M. The odds were higher for U5M to occur among women who had experienced MHRFBs compared to those who have not had an experience of MHRFBs [aOR = 1.48; 95%CI: 1.02–2.17 ]. Similarly, the odds of U5M occurrence among women in polygamous marriages are higher compared to those in monogamous unions [aOR = 1.35; 95% CI: 1.10–1.65]. While under-five children born in the richest households (wealth quintiles) are less likely to die compared to those born in the poorest households [aOR = 0.64; 95% CI: 0.41–1.01].ConclusionThis study concludes that women in Nigeria who engaged in MHRFBs, particularly maternal ages < 18 years and short birth intervals (< 24 months), were more likely to experience U5M. Furthermore, children born to women who received post-natal care after delivery were more likely to survive U5M, as were children born to women with educated partners. We recommend strengthening educational opportunities and creating adaptive reproductive health education programs for ever-married women of reproductive age in Nigeria.

Coverage-level and predictors of maternity continuum of care in Nigeria: implications for maternal, newborn and child health programming

BackgroundCompleting maternity continuum of care from pregnancy to postpartum is a core strategy to reduce the burden of maternal and neonatal mortality dominant in sub-Saharan Africa, particularly Nigeria. Thus, we evaluated the level of completion, dropout and predictors of women uptake of optimal antenatal care (ANC) in pregnancy, continuation to use of skilled birth attendants (SBA) at childbirth and postnatal care (PNC) utilization at postpartum in Nigeria.MethodsA cross-sectional analysis of nationally representative 21,447 pregnancies that resulted to births within five years preceding the 2018 Nigerian Demographic Health Survey. Maternity continuum of care model pathway based on WHO recommendation was the outcome measure while explanatory variables were classified as; socio-demographic, maternal and birth characteristics, pregnancy care quality, economic and autonomous factors. Descriptive statistics describes the factors, backward stepwise regression initially assessed association (p < 0.10), multivariable binary logistic regression and complementary-log–log model quantifies association at a 95% confidence interval (α = 0.05).ResultsCoverage decrease from 75.1% (turn-up at ANC) to 56.7% (optimal ANC) and to 37.4% (optimal ANC and SBA) while only 6.5% completed the essential continuum of care. Dropout in the model pathway however increase from 17.5% at ANC to 20.2% at SBA and 30.9% at PNC. Continuation and completion of maternity care are positively drive by women; with at least primary education (AOR = 1.27, 95%CI = 1.01–1.62), average wealth index (AOR = 1.83, 95%CI = 1.48 –2.25), southern geopolitical zone (AOR = 1.61, 95%CI = 1.29–2.01), making health decision alone (AOR = 1.39, 95%CI = 1.16–1.66), having nurse as ANC provider (AOR = 3.53, 95%CI = 2.01–6.17) and taking at least two dose of tetanus toxoid vaccine (AOR = 1.25, 95%CI = 1.06–1.62) while women in rural residence (AOR = 0.78, 95%CI = 0.68–0.90) and initiation of ANC as late as third trimester (AOR = 0.44, 95%CI = 0.34–0.58) negatively influenced continuation and completion.Conclusions6.5% coverage in maternity continuum of care completion is very low and far below the WHO recommended level in Nigeria. Women dropout more at postnatal care than at skilled delivery and antenatal. Education, wealth, women health decision power and tetanus toxoid vaccination drives continuation and completion of maternity care. Strategies optimizing these factors in maternity packages will be supreme to strengthen maternal, newborn and child health.

Assessment and associated factors of comprehensive HIV knowledge in an at-risk population: a cross-sectional study from 19,286 young persons in Nigeria.

The prevalence of HIV among young people aged 15-19 years in Nigeria is estimated as 3.5%, the highest among West and Central African countries. Comprehensive knowledge of HIV is associated with increased awareness of preventive interventions and a reduction in the spread of HIV. Therefore, this article seeks to assess and determine the associated factors of comprehensive HIV knowledge among youths in Nigeria. The study used the 2018 Nigerian Demographic Health Survey, a cross-sectional survey that employed a two-stage cluster sampling method. Comprehensive knowledge of HIV was assessed based on five questions. The data were analysed separately for men and women aged 15-24 years. A multivariable log-binomial regression model was used to determine factors associated with comprehensive HIV knowledge. All analysis was performed using Stata 15.0 and adjusted for weighting, clustering and stratification. A total of 15,267 women and 4019 men aged 15-24 years were included in this study. The prevalence of comprehensive knowledge of HIV was higher among women than among men (42.6% versus 33.7%; p < 0.001) and lower among younger ages 15-17 years compared with other ages. The findings revealed that age, ethnicity, wealth, education and exposure to mass media were statistically significant factors associated with comprehensive knowledge of HIV. In addition, religion, place of residence, phone ownership, internet use, currently working and having initiated sex were significant factors among women and modern contraceptive use among men. Key findings from this study imply that public health programmes in Nigeria should focus on providing information on HIV/AIDS using different approaches, including comprehensive sex education as well as health promotion and education strategies in the formal and informal sectors. Because media exposure is a common and cost-effective way of public health promotion and education in modern times, emphasis could also be placed on using this channel to reach the target population.

Ecological analysis of demographic-, nutritional- and housing-related factors associated with anaemia among women of reproductive age group in Nigeria

Anaemia remains a major public health concern, particularly, in sub-Saharan Africa (SSA), where it is one of the causes of maternal death. The most common cause of maternal anaemia is iron deficiency or malnutrition. This study examined the prevalence of and risk factors for anaemia among women that participated in the Nigerian Demographic Health Survey. We used data of 14,454 women that participated in the 2018 Nigeria Demographic and Health Survey (NDHS). We extracted information such as demographic, social and housing, dietary characteristics and haemoglobin concentration. The descriptive statistic results, prevalence and 95% confidence interval (CIs) of anaemia with the selected respondents background characteristics were presented. The Poisson regression model with robust variance was used to assess the risk of anaemia among women of reproductive age. All analyses were weighted and adjusted for the complex survey design. Statistical significance was interpreted at p value < 0.05. Maternal status, body mass index, education, residence, religion, ethnicity, region and type of cooking fuel were all important determinants of anaemia. The prevalence of anaemia was high among pregnant women (61.8%; 95% CI: 58.5-65.0), adolescents (60.4%; 95% CI: 58.1-62.6), underweight women (62.6%; 95% CI: 59.5-65.5), women who had no formal education (64.1%; 95% CI: 62.2-66.0) and those who belonged to the poorest wealth quintile (65.8%; 95% CI: 63.1-68.4). Similarly, anaemia was high among women residing in rural areas (61.5%; 95% CI: 60.0-63.0), Muslims (59.9%; 95% CI: 58.1-61.6) and women with six or more children (62.1%; 95% CI: 60.0-64.1). The risk of anaemia were 2% less likely among women who took minimum adequate diet compared to those who do not. To date, this is the largest data on maternal anaemia in Nigeria. The study highlighted the high burden of maternal anaemia in the country and different risk factors (medical and social) that are associated with this medical condition among women of reproductive age. We recommend future longitudinal studies to test hypothesis in order to assess whether there is any causal relationship between identified risk factors and anaemia in this group of women.

Prevalence and predictive factors for early initiation of breastfeeding in Nigeria: Evidence from the Nigerian demographic and health survey (2003-2018).

Early initiation of breastfeeding (EIBF) is an essential first step in exclusive breastfeeding that is expected to commence within an hour after childbirth. This study examined the prevalence and the factors associated with EIBF among nursing mothers in Nigeria based on an analysis of the 2003, 2008, 2013, and 2018 Nigerian Demographic Health Survey (NDHS) data. The prevalence of early breastfeeding initiation by women's demographic, socio-economic and reproductive characteristics were computed for each of the survey rounds. The differences in the prevalence estimates for early breastfeeding initiation between the last two survey periods were calculated. A crude and adjusted model to examine association between explanatory variables and early breastfeeding initiation were fitted using Poisson regression model. The mean age of respondents was 29 years (SD=7.3). The prevalence of EIBF increased from 31.5% in 2003 (95% CI 28.4-34.5) to 43.8% in 2018 (95% CI 42.6-45.0), with a decline to 35.3% in 2013 (95% CI 34.0-36.7). The identified risk factors associated with EIBF were being 35-39 years, having at least a primary education, lower wealth quintiles, multiparity, and delivery in a public hospital. EIBF was lower among women that had skilled occupation, access to media, decided to delay pregnancy, history of previous caesarean section, small size baby at birth, and women who received antenatal care. The results indicate that the proportion of women with EIBF in Nigeria is low. Addressing the barriers identified in this paper will help promote EIBF practices in the country.

Factors Associated with the Uptake of Antenatal Tetanus Toxoids Containing Vaccine by First-Time Mothers in Nigeria: Findings from the 2018 Nigerian Demographic Health Survey.

Background Maternal and neonatal tetanus remains a public health problem in low-and-middle-income countries despite the increasing investment in tetanus toxoid containing vaccines (TTCV). Nigeria still records fatalities from tetanus, predominantly in women of reproductive age and in newborns. This is largely due to poor access to vaccinations and high rates of unsupervised labour and childbirth. We aim to investigate the antenatal uptake of TTCV and associated factors among first-time pregnant women in Nigeria. Methods Data obtained from the 2018 Nigeria Demographic Health Survey (NDHS) was used to generate a list of eligible patients who in the last five years had undergone their first childbirth experience. Data was analysed using univariable and multivariable analyses and reported using a 95% confidence interval. Results A total of 3640 participants were included in the analysis. 59.6% (95% CI, 57.6-61.8) of participants had received at least two doses of TTCV. Uptake of TTCV irrespective of current marital status was independently associated with number of and place of antenatal care. Other factors associated with receiving two doses of TTCV in all participants were ownership of mobile phones and region of residence. Among the currently married participants, wealth quintiles, region of residence, and having a polygamous family were additional associated factors. Conclusion There was low uptake of the minimal required dosage of TTCV among first-time pregnant women with the lowest uptake in Northern regions relative to Southern regions. We recommend mixed methods studies to further explore the motivation behind TTCV uptake in pregnant women which can help guide future policies and interventions to improve uptake of tetanus immunization in Nigeria.

Gender norms and women's empowerment as barriers to facility birth: A population-based cross-sectional study in 26 Nigerian states using the World Values Survey.

BackgroundCentral and western Africa struggle with the world’s lowest regional proportion of facility birth at 57%. The aim of the current study was to compare beliefs related to maternal health care services, science/technology, gender norms, and empowerment in states with high vs. low proportions of facility birth in Nigeria.MethodsFace-to-face interviews were performed as part of a nationally representative survey in Nigeria using a new module to measure values and beliefs related to gender and sexual and reproductive health and rights collected as part the 2018 World Values Survey. We compared beliefs related to maternal health care services, science/technology, gender norms, and empowerment between Nigerian states with facility birth proportions > 50% vs. < 25% as presented in the 2018 Nigerian Demographic Health Survey report. Pearson’s chi-squared test, the independent t-test, and univariable and multivariable logistic and linear regression were used for analyses. Results were also stratified by gender.ResultsAmong the 1,273 participants interviewed, 653 resided in states with high and 360 resided in states with low proportions of facility birth. There were no significant differences between the groups in perceived safety of facility birth (96% vs. 94%) and confidence in antenatal care (91% vs 94%). However, in states with low proportions of facility birth, participants had higher confidence in traditional birth attendants (61% vs. 39%, adjusted odds ratio [aOR] 2.1, [1.5–2.8]), men were more often perceived as the ones deciding whether a woman should give birth at a clinic (56% vs. 29%, aOR 2.4 [1.8–3.3]), and participants experienced less freedom over their own lives (56% vs. 72%, aOR 0.56 [0.41–0.76]). Most differences in responses between men and women were not statistically significant.ConclusionsIn order to increase facility births in Nigeria and other similar contexts, transforming gender norms and increasing women’s empowerment is key.

An Investigation into Social and Cultural Pressures of Vulnerable Women using Survival Analysis with Covariates

In this study, we sought to model the time to the first birth interval from marriage for women in Nigeria, and identify the various factors affecting this timing. The study was also set to determine the average/median survival time for marriage to first birth interval among Nigerian women, to provide enlightenment in such areas and possibly reduce anxiety levels of women who have little or no knowledge of the median survival time to first birth who might be vulnerable to the exploitations of illicit religious and medical practitioners.&#x0D; Data obtained from the Nigerian Demographic Health Survey (NDHS) 2018 was used for the purpose of this research. Information on the following variables was obtained: Time to first birth from marriage, Age Women's education, Wealth index, Place of residence, Employment, Contraceptive, Religion, and Region. The Kaplan-Meier estimator was used to estimate the median survival time, while the log-rank test was used to test the significance of the categories of the covariates used. The Density, Quantile, Survival and Probability plots were used to study candidate distributions that appropriately describe the data, and the Akaike Information Criterion (AIC) was used to select the best distribution for the Accelerated Failure Time Model.&#x0D; The study found that the median Survival time of marriage to the first birth interval was 20 months. Level of education, religion, region, use of contraceptives and Wealth Index were found to significantly affect marriage to the first birth interval. A log-normal Accelerated Failure Time Model was fit to the data. Women with higher education were found to have a shorter time to first birth interval. Also, women from South-Western Nigeria had shorter marriage to first birth interval than the other regions.

Rural-urban disparities in postpartum contraceptive use among women in Nigeria: a Blinder-Oaxaca decomposition analysis

BackgroundUnintended pregnancies are a global public health concern that could be prevented with appropriate access to contraceptive methods. Evidence from research has indicated that avoidance of closely space birth/pregnancy within the first year of postpartum, mitigates the risk of adverse health outcomes such as preterm birth, low birth-weight, etc. Postpartum family planning helps women to minimize closely spaced and unplanned pregnancies within the first 12 months after delivery. Less contraceptive use is often present in more socially disadvantaged groups. Studies from Nigeria have shown a persistent disparity on contraceptive use between rural and urban residents. To identify the factors explaining these inequalities is important to implement targeted interventions. This study aimed to identify the factors contributing to the rural-urban disparity in postpartum contraceptive use among women in Nigeria.MethodsThis is a cross-sectional study using the Nigerian Demographic Health Survey. In total, 28,041 postpartum Nigerian women were included. Self-reported contraceptive use was the outcome, while the selected explanatory variables were grouped according to three theoretical perspectives: materialistic, behavioural/cultural, and psychosocial variables. Descriptive statistics and Blinder-Oaxaca decomposition were used to summarize and identify the factors contributing to the rural-urban disparity in postpartum contraceptive use.ResultsIn this study, 27% of women reported to have used contraceptives during the postpartum period. The rural-urban disparity in postpartum contraceptive use accounted for 18.2 percentage points. The findings further showed that the disparities in postpartum contraceptive use between rural-urban residence were mostly explained by materialistic variables (82%), followed by the behavioural/cultural variables and age (included as covariate) accounting for 15.6 and 3.0%, respectively. Household wealth (37%) and educational attainment (38%) had the most significant contribution to the differences in postpartum contraceptive use. Only 15% of the difference in postpartum contraceptive use remained unexplained.ConclusionThis study has shown important inequalities in postpartum contraceptive use between rural and urban residents in Nigeria. These differences were mainly explained by materialistic factors. These findings highlight crucial areas for the government to target in order to close the existing gap between rural and urban settings in contraceptive use in the country.

Preventable multiple high-risk birth behaviour and infant survival in Nigeria

BackgroundGlobally, infant mortality has declined considerably but has remained unacceptably high in sub-Saharan Africa, especially Nigeria where infant mortality rate is 67/1000 live births. To facilitate infant mortality reduction in Nigeria, an understanding of the synergistic effect of bio-demographic characteristics of mothers known as High Risk Birth Behaviours (HrBBs) is important. We therefore investigated the influence of HrBBs on infant survival in Nigeria.MethodsThis cross-sectional study design utilized data from the 2018 round of Nigerian Demographic Health Survey. The study participants were a representative sample of women of reproductive age (n = 21,350) who had given birth within the 5 years preceding the survey. HrBBs was measured through integration of information on maternal age at child’s birth, parity, and preceding birth interval with respect to the most recent child. The HrBBs was categorized as none, single and multiple. Data were analysed using descriptive statistics, Log-rank test and Cox proportional hazard model (α =0.05).ResultsThe mean age of the women was 29.7 ± 7.2 and 4.1% had experienced infant death. Infant mortality was highest among women with multiple HrBBs (5.1%). Being a male, having small size at birth, failure to receive tetanus injection, non-use of contraceptives and living in the core-north (North West and North East) predisposed children to higher risk of dying before 12 months of age. The hazard ratio of infant mortality was significantly higher among infants of mothers in multiple HrBBs category (aHR = 1.66; CI: 1.33–2.06) compared to their counterparts with no HrBBs.ConclusionMultiple HrBBs increase the chances of dying among infants in Nigeria. Screening women for HrBBs for special health attention during pregnancy, birth and postnatal period will alleviate infant death in Nigeria.

Factors associated with the awareness of vaginal fistula among women of reproductive age: findings from the 2018 Nigerian demographic health cross-sectional survey

IntroductionInvoluntary leakage of urine and or stool per vaginam (vaginal fistula) after childbirth remains a public health challenge in Africa and South East Asia. To the best of our knowledge,...

Determinants of household fuel choices among Nigerian family heads: are there gender-differentiated impacts?

The consensus in the literature holds that female-headed households (FHHs) are more vulnerable to social and economic exclusion than male-headed households (MHHs). This paper investigates the socioeconomic determinants of household cooking fuel choices across MHHs and FHHs, using the rich Nigerian Demographic Health Survey data. Using the exogenous switching treatment effect regression (ESTER) technique, the study is able to unravel differences in socioeconomic effects of gender inequality on cooking fuel choices in Nigeria. The results validate the energy ladder hypothesis in the Nigerian case and show that the choices of dirty fuel (biomass) is more prevalent among the de-jure FHH when compared with the de-facto FHH and MHHs. Also, the probability of biomass-use among MHHs would have fallen by 1.3% if MHHs had similar socioeconomic attributes as the FHHs. In the same vain for FHHs, the probability of kerosene-use would have increased by 2%. The study observed no gender gap in kerosene-use. Thus, the established gender gap in biomass- and kerosene-use would have reduced to 6.7% and 2.8%, respectively, if the de-facto FHHs had same socioeconomic attributes as the de-jures. Considering the traditional gendered household division of labor within the households, de-jure FHHs' energy choices may be due to limited economic opportunities that guarantees cleaner energy options.

&lt;p&gt;Utilization of Maternity Services and Its Relationship with Postpartum Use of Modern Contraceptives Among Women of Reproductive Age Group in Nigeria&lt;/p&gt;

BackgroundUtilization of maternity services (UMS) exposes mothers to family planning (FP) counseling and other FP promotional activities. Uptake of postpartum modern contraceptives (PPMC) reduces both infant and maternal mortalities by reducing unwanted pregnancies and promoting good child spacing. Understanding the relationship between UMS and uptake of PPMC was therefore very important.PurposeTo determine the association between UMS and uptake of PPMC among women of the reproductive age group in Nigeria taking into consideration the influence of the place of access to the maternity services.Patients and MethodsThis study was a descriptive epidemiological study design. Secondary data obtained from the 2013 Nigerian Demographic Health Survey (NDHS) was analyzed to achieve the above aim. The uptake of PPMC was the dependent variable (DV). The independent variables (IDV) selected were the number of antenatal care (ANC) visits, place of access of ANC, place of delivery, timing of postnatal care (PNC) and place of access of PNC. Other control variables include socio-demographic factors. Descriptive statistics, chi-square testing, and logistic regression analyses were conducted to determine the association between the PPMC uptake and the IDV/other control variables. Statistical significance was claimed at p<0.05.ResultsUtilization of maternity services was associated with higher uptake of PPMC among the women (>/= 4 ANC visits OR = 2.08, 95% CI=1.65–2.62, P<0.001; public facility delivery OR= 1.80, 95% CI= 1.54–2.10, P< 0.001; private facility delivery OR =1.54, 95% CI 1.28–1.85, P< 0.001; PNC OR=1.21, 95% CI= 1.02–1.43, P=0.029). Accessing postnatal care in private health facilities was associated with increased uptake of PPMC (OR= 1.46, 95% CI =1.05–2.02, P= 0.024). The number of children alive, educational attainment, wealth index and having information about FP remained significant predictors of PPMC uptake.ConclusionThe utilization of maternity services was positively associated with postpartum use of modern contraceptives among women of reproductive age in Nigeria. There was increased uptake of PPMC among women who utilized maternity service compared to their counterparts who did not. Regarding the place of access, accessing antenatal care as well as delivering in either private or public health facilities was not a significant predictor of PPMC use. However, accessing postnatal care in private facilities was associated with higher uptake of PPMC.

Determinants of antenatal HIV testing in the opt-out approach in Nigeria: findings from the Nigerian Demographic and Health Survey.

Children in Nigeria are frequently born with HIV, despite available services to prevent mother-to-child transmission (MTCT). Not offering, or non-acceptance of, HIV testing during antenatal care (ANC) delays anti-retroviral commencement for infected women, thereby increasing the risk of MTCT. This study assessed the determinants of HIV testing during antenatal care in Nigeria using nationally representative data from the 2013 Nigerian Demographic Health Survey. This study included 13,352 women aged 15-49 years who reported having at least one antenatal visit. The outcome variables were HIV testing during ANC and during labour, while socio-demographic and maternal factors, including number of ANC visits, offer of HIV testing during ANC and labour, place of delivery and knowledge and counselling on MTCT, were among the independent variables. Multivariate regression analysis was used to predict HIV testing during ANC and labour. About half (53%) of the women were tested for HIV during antenatal care with 85% of those tested receiving their test results. Only 6% had HIV tests during labour. There was a 33% excess probability of urban women testing during ANC compared with rural women. Never having a previous pregnancy terminated was associated with lower odds of testing during ANC. No counselling on MTCT and no counselling to get tested were associated with a lower probability of testing during ANC. Counselling on the prevention of MTCT is crucial for women's willingness to be tested, and acceptance of testing. More effort is needed to ensure that providers in Nigeria offer these services to all women, educate women on the dangers of opting out and ensure the earliest commencement of ARV enrolment for those infected.

Age heaping among adults in Nigeria: evidence from the Nigeria Demographic and Health Surveys 2003-2013.

Age, as a variable, represents a critical basis for demographic classification; thus, its misrepresentations or misreporting alter the accuracy of demographic estimates. This paper examines the extent and pattern of age heaping in the age data for adults, collected in the Nigerian Demographic Health Survey (NDHS). The study used the NDHS data for 2003, 2008, and 2013 to compute a Whipple's and Meyers' blended index for each survey year, by gender, geopolitical zones, states and place of residence. The analysis shows that age heaping was higher than the acceptable levels in all three data sets. The Whipple's index puts the rate of age heaping in the 2003 dataset at 271.3, whilst the rates declined slightly in the 2008 and 2013 datasets to reach 204.2 and 202.5 respectively. Similarly, the Myers' blended index portrayed that age heaping in the 2003 data was highest at 47.0 while the subsequent years were lower at 38.60 and 38.66, respectively. Digits ending in 0 and 5 were mostly reported in all three surveys and higher rates of age heaping were observed among males, the uneducated and rural dwellers. Age heaping was prominent in all three surveys, thus affecting the data quality gathered at these surveys. Thus, future studies should assess the extent to which age misreporting could bias the estimate of fertility rate.

The effect of child death on birth spacing in Nigeria.

Studies have focused on the effect of short birth spacing on childhood mortality, yet very little attention has been paid to the possibility of an inverse relationship such that child mortality might also positively or negatively affect birth spacing. In Nigeria, where both fertility and child mortality are high, this inverse relationship is a possible reason for the country's high fertility. The objective of this study was to examine the effect of child death on time to birth of the next child. Data were drawn from the 2013 Nigerian Demographic Health Survey. The study sample comprised 188,986 live births born to women aged 15-49 years within the five years preceding the survey. A multivariate Cox proportional hazard regression model was fitted to the data, and hazard ratios with 95% confidence intervals calculated. More than half of the mothers (68%) already had a next birth by 36 months after the death of the index child. Controlling for other covariates, the Cox regression model showed that the likelihood of next birth was higher when the index child had died compared with when the index child survived (HR: 2.21; CI: 2.03-2.41). Sub-group analysis by geo-political regions in Nigeria showed that in all regions there was a higher likelihood of having a next birth following the death of a preceding child. Death of the index child was found to be a major factor that shortens the length of birth intervals in Nigeria. It is therefore important that the Government of Nigeria intensifies efforts aimed at reducing infant mortality and encouraging adequate birth spacing.

Spatial pattern and determinants of diarrhoea morbidity among under-five-aged children in Lagos State, Nigeria

ABSTRACT Diarrhoeal diseases are major causes of morbidity and mortality among under-fived-aged children globally. In Nigeria, 10% of under-five deaths in 2016 were due to diarrhoea. The diseases were responsible for 9% of childhood deaths in Lagos State in 2011. This study examined the spatial pattern and sociodemographic, environmental, hygiene and behavioural factors associated with diarrhoeal morbidity in Lagos State. Data on reported cases of childhood diarrhoeal diseases in government hospitals was analysed using spatial statistical techniques. Data from 2013 Nigerian Demographic Health Survey was used to determine diarrhoeal disease risk factors through multivariate logistic regression analysis. Lagos Island recorded the highest (34.2%) number of cases, followed by Agege (16.6%) and Somolu (13.2%) local government areas (LGAs). The spatial distribution of diarrhoeal cases is random. The prevalence of diarrhoeal diseases during the two-week period before the survey was 7.5%. Factors significantly associated with diarrhoeal disease morbidity were child’s age, mother’s age, religion, paternal education and occupation, mother’s occupation, source of drinking water, floor material, mixed feeding and mothers not wanting the last child. These findings highlight the need to strengthen the provision of safe water supply. Educational programmes that emphasise treatment of drinking water, safe hygiene and sanitation practices should be implemented.