Socioeconomic inequalities in teenage pregnancy in Nigeria: evidence from Demographic Health Survey.

BACKGROUND: Despite the high rate of teenage pregnancy in Nigeria and host of negative medical, social and economic consequences that are associated with the problem, relatively few studies have examined socioeconomic inequality in teenage pregnancy. Understanding the key factors associated with socioeconomic inequality in teenage pregnancy is essential in designing effective policies for teenage pregnancy reduction. This study focuses on measuring inequality and identifying factors explaining socioeconomic inequality in teenage pregnancy in Nigeria. METHODS: This is a cross sectional study using individual recode (data) file from the 2018 Nigeria Demographic Health Survey. The dataset comprises a representative sample of 8,423 women of reproductive age 15 - 19 years in Nigeria. The normalized Concentration index (Cn) was used to determine the magnitude of inequalities in teenage pregnancy. The Cn was decomposed to determine the contribution of explanatory factors to socioeconomic inequalities in teenage pregnancy in Nigeria. RESULTS: The negative value of the Cn (-0.354; 95% confidence interval [CI] = -0.400 to -0.308) suggests that pregnancy is more concentrated among the poor teenagers. The decomposition analysis identified marital status, wealth index of households, exposure to information and communication technology, and religion as the most important predictors contributing to observed concentration of teenage pregnancy in Nigeria. CONCLUSION: There is a need for targeted intervention to reduce teenage pregnancy among low socioeconomic status women in Nigeria. The intervention should break the intergenerational cycle of low socioeconomic status that make teenagers' susceptible to unintended pregnancy. Economic empowerment is recommended, as empowered girls are better prepared to handle reproductive health issues. Moreover, religious bodies, parents and schools should provide counselling, and guidance that will promote positive reproductive and sexual health behaviours to teenagers.

Geographic and socioeconomic inequalities in the survival of children under-five in Nigeria.

Despite a substantial decline in child mortality globally, the high rate of under-five mortality in Nigeria is still one of the main public health concerns. This study investigates inequalities in geographic and socioeconomic factors influencing survival time of children under-five in Nigeria. This is a retrospective cross-sectional quantitative study design that used the latest Nigeria Demographic Health Survey (2018). Kaplan-Meier survival estimates, Log-rank test statistics, and the Cox proportional hazards were used to assess the geographic and socioeconomic differences in the survival of children under-five in Nigeria. The Kaplan-Meier survival estimates show most under-five mortality occur within 12 months after birth with the poorest families most at risk of under-five mortality while the richest families are the least affected across the geographic zones and household wealth index quintiles. The Cox proportional hazard regression model results indicate that children born to fathers with no formal education (HR: 1.360; 95% CI 1.133-1.631), primary education (HR: 1.279; 95% CI 1.056-1.550) and secondary education (HR: 1.204; 95% CI 1.020-1.421) had higher risk of under-five mortality compared to children born to fathers with tertiary education. Moreover, under-five mortality was higher in children born to mothers' age ≤ 19 at first birth (HR: 1.144; 95% CI 1.041-1.258). Of the six geopolitical zones, children born to mothers living in the North-West region of Nigeria had 63.4% (HR 1.634; 95% CI 1.238-2.156) higher risk of under-five mortality than children born to mothers in the South West region of Nigeria. There is a need to focus intervention on the critical survival time of 12 months after birth for the under-five mortality reduction. Increased formal education and target interventions in geopolitical zones especially the North West, North East and North Central are vital towards achieving reduction of under-five mortality in Nigeria.

Decomposition of socioeconomic inequalities in the uptake of intermittent preventive treatment of malaria in pregnancy in Nigeria: evidence from Demographic Health Survey.

BACKGROUND: Although malaria in pregnancy is preventable with the use of intermittent preventive treatment with sulfadoxine-pyrimethamine (IPTp-SP), it still causes maternal morbidity and mortality, in sub-Saharan Africa and Nigeria in particular. Socioeconomic inequality leads to limited uptake of IPTp-SP by pregnant women and is, therefore, a public health challenge in Nigeria. This study aimed to measure and identify factors explaining socioeconomic inequality in the uptake of IPTp-SP in Nigeria. METHODS: The study re-analysed dataset of 12,294 women aged 15-49 years from 2018 Nigeria Demographic Health Survey (DHS). The normalized concentration index (Cn) and concentration curve were used to quantify and graphically present socioeconomic inequalities in the uptake of IPTp-SP among pregnant women in Nigeria. The Cn was decomposed to identify key factors contributing to the observed socioeconomic inequality in the uptake of adequate (≥ 3) IPTp-SP. RESULTS: The study showed a higher concentration of the adequate uptake of IPTp-SP among socioeconomically advantaged women (Cn = 0.062; 95% confidence interval [CI] 0.048 to 0.076) in Nigeria. There is a pro-rich inequality in the uptake of IPTp-SP in urban areas (Cn = 0.283; 95%CI 0.279 to 0.288). In contrast, a pro-poor inequality in the uptake of IPTp-SP was observed in rural areas (Cn = - 0.238; 95%CI - 0.242 to - 0.235). The result of the decomposition analysis indicated that geographic zone of residence and antenatal visits were the two main drivers for the concentration of the uptake of IPTp-SP among wealthier pregnant women in Nigeria. CONCLUSION: The pro-rich inequalities in the uptake of IPTp-SP among pregnant women in Nigeria, particularly in urban areas, warrant further attention. Strategies to improve the uptake of IPTp-SP among women residing in socioeconomically disadvantaged geographic zones (North-East and North-West) and improving antenatal visits among the poor women may reduce pro-rich inequality in the uptake of IPTp-SP among pregnant women in Nigeria.

Heavy metal content of rice meals sold in a Nigerian market population with a high prevalence of hypertension.

Context: Some market populations in Nigeria have been shown to have high prevalence of hypertension. Current evidence includes environmental pollutants such as heavy metals as risk factors for hypertension. Aim: To study the heavy metal content of rice meals sold in a market population with a high prevalence of hypertension. Settings and Design: This was a descriptive, cross-sectional study conducted in Ogbete market in Enugu, Southeast Nigeria. Subjects and Methods: Five different cooked rice meals were obtained from 25 locations of the market. The rice meals included jollof rice, white rice and tomato stew, fried rice, white rice and vegetable sauce, and white rice and palm oil stew (ofeakwu). Accompanying protein (meat, fish, and egg) and vegetable salad were excluded. Similar rice meals were homogenized and analyzed in triplicates using spectrophotometric methods for mercury, copper, cadmium, lead, and arsenic determination. Statistical Analysis Used: The mean concentrations of the heavy metals were compared using analysis of variance, and P < 0.05 was considered statistically significant. Results: Twenty-five rice dishes were evaluated, five of each kind. Arsenic content ranged from 503 to 550 mg/kg and was comparable across the five rice dishes (P = 0.148). Copper was significantly highest (16767 mg/kg) in the white rice and tomato stew dish (P < 0.001), while mercury was significantly highest (33 mg/kg) in white rice and ofeakwu (P < 0.001). Jollof rice had the highest cadmium content (23 mg/kg), which was statistically significant (P = 0.021). Lead was not found in any of the rice dishes. Conclusions: Risk factors such as heavy metals may play a role in the high prevalence of hypertension observed in market populations, and rice meals may be a major source of these heavy metals.

RésuméContexte: Il a été démontré que certaines populations du marché au Nigéria présentent une prévalence élevée d'hypertension. Les preuves actuelles incluent l'environnement des polluants tels que les métaux lourds comme facteurs de risque d'hypertension. Objectif: étudier la teneur en métaux lourds des farines de riz vendues dans une population de marché avec une prévalence élevée d'hypertension. Paramètres et conception: il s'agit d'une étude descriptive et transversale menée sur le marché d'Ogbete en Enugu, sud-est du Nigéria. Sujets et méthodes: Cinq plats de riz cuit différents ont été obtenus dans 25 emplacements du marché. Le riz les repas comprenaient du riz jollof, du riz blanc et du ragoût de tomates, du riz frit, du riz blanc et de la sauce aux légumes, et du riz blanc et du ragoût d'huile de palme (ofeakwu). Les protéines d'accompagnement (viande, poisson et œuf) et la salade de légumes ont été exclues. Des farines de riz similaires ont été homogénéisées et analysées triplicats utilisant des méthodes spectrophotométriques pour la détermination du mercure, du cuivre, du cadmium, du plomb et de l'arsenic. Analyse statistique utilisée: le les concentrations moyennes des métaux lourds ont été comparées à l'aide d'une analyse de variance, et P <0.05 a été considéré comme statistiquement significatif. Résultats: Vingt-cinq plats de riz ont été évalués, cinq de chaque type. La teneur en arsenic variait de 503 à 550 mg / kg et était comparable dans les cinq plats de riz (P = 0,148). Le cuivre était significativement plus élevé (16767 mg / kg) dans le plat de ragoût de riz blanc et de tomate (P <0.001), tandis que le mercure était significativement plus élevé (33 mg / kg) dans le riz blanc et l'ofeakwu (P <0.001). Le riz Jollof avait la plus forte teneur en cadmium (23 mg / kg), qui était statistiquement significatif (P = 0.021). Le plomb n'a été trouvé dans aucun des plats de riz. Conclusions: Des facteurs de risque tels que les métaux lourds peuvent jouent un rôle dans la prévalence élevée de l'hypertension observée dans les populations du marché, et les farines de riz peuvent être une source majeure de ces métaux lourds.

Geographical and socioeconomic inequalities in the utilization of maternal healthcare services in Nigeria: 2003-2017.

BACKGROUND: Maternal mortality has remained a challenge in many low-income countries, especially in Africa and in Nigeria in particular. This study examines the geographical and socioeconomic inequalities in maternal healthcare utilization in Nigeria over the period between 2003 and 2017. METHODS: The study used four rounds of Nigeria Demographic Health Surveys (DHS, 2003, 2008, 2013, and 2018) for women aged 15-49 years old. The rate ratios and differences (RR and RD) were used to measure differences between urban and rural areas in terms of the utilization of the three maternal healthcare services including antenatal care (ANC), facility-based delivery (FBD), and skilled-birth attendance (SBA). The Theil index (T), between-group variance (BGV) were used to measure relative and absolute inequalities in the utilization of maternal healthcare across the six geopolitical zones in Nigeria. The relative and absolute concentration index (RC and AC) were used to measure education-and wealth-related inequalities in the utilization of maternal healthcare services. RESULTS: The RD shows that the gap in the utilization of FBD between urban and rural areas significantly increased by 0.3% per year over the study period. The Theil index suggests a decline in relative inequalities in ANC and FBD across the six geopolitical zones by 7, and 1.8% per year, respectively. The BGV results do not suggest any changes in absolute inequalities in ANC, FBD, and SBA utilization across the geopolitical zones over time. The results of the RC and the AC suggest a persistently higher concentration of maternal healthcare use among well-educated and wealthier mothers in Nigeria over the study period. CONCLUSION: We found that the utilization of maternal healthcare is lower among poorer and less-educated women, as well as those living in rural areas and North West and North East geopolitical zones. Thus, the focus should be on implementing strategies that increase the uptake of maternal healthcare services among these groups.

Does expanding fiscal space lead to improved funding of the health sector in developing countries?: lessons from Kenya, Lagos State (Nigeria) and South Africa.

BACKGROUND: The global focus on promoting Universal Health Coverage has drawn attention to the need to increase public domestic funding for health care in low- and middle-income countries. OBJECTIVES: This article examines whether increased tax revenue in the three territories of Kenya, Lagos State (Nigeria) and South Africa was accompanied by improved resource allocation to their public health sectors, and explores the reasons underlying the observed trends. METHODS: Three case studies were conducted by different research teams using a common mixed methods approach. Quantitative data were extracted from official government financial reports and used to describe trends in general tax revenue, total government expenditure and government spending on the health sector and other sectors in the first decade of this century. Twenty-seven key informant interviews with officials in Ministries of Health and Finance were used to explore the contextual factors, actors and processes accounting for the observed trends. A thematic content analysis allowed this qualitative information to be compared and contrasted between territories. FINDINGS: Increased tax revenue led to absolute increases in public health spending in all three territories, but not necessarily in real per capita terms. However, in each of the territories, the percentage of the government budget allocated to health declined for much of the period under review. Factors contributing to this trend include: inter-sectoral competition in priority setting; the extent of fiscal federalism; the Ministry of Finance's perception of the health sector's absorptive capacity; weak investment cases made by the Ministry of Health; and weak parliamentary and civil society involvement. CONCLUSION: Despite dramatic improvements in tax revenue collection, fiscal space for health in the three territories did not improve. Ministries of Health must strengthen their ability to motivate for larger allocations from government revenue through demonstrating improved performance and the relative benefits of health investments.

Willingness to pay for antiretroviral drugs among HIV and AIDS clients in south-east Nigeria.

BACKGROUND: The current trend of withdrawal of donor support for HIV/AIDS treatment in Nigeria may require that the cost of antiretroviral drugs be borne in part by infected people and their families. OBJECTIVE: This study was conducted to determine the economic value for free antiretroviral drugs (ARVs) expressed by clients receiving treatment for HIV/AIDS in a tertiary hospital. STUDY METHOD: The contingent valuation method was used to elicit the values attached to free ARVs from people living with HIV/AIDS that were receiving care in a public tertiary hospital in south-east Nigeria. Exit poll using a pre-tested questionnaire was undertaken with adult clients on treatment. The bidding game technique was used to elicit their willingness to pay (WTP) for ARVs for themselves and members of their households. Ordinary least squares (OLS) multiple regression analysis was used to test the construct validity of elicited WTP amounts. RESULTS: About a third of the respondents were willing to pay for a monthly supply of ARVs for themselves and household members. The mean WTP for monthly supply of ARVs for self was US$15.32 and for household member was US$15.26 (1US$=₦160). OLS regression analysis showed that employment status and higher socio-economic status were positively associated with higher WTP. OLS showed that age and transport cost per clinic visit were negatively related to WTP. Knowing the risks of not adhering to treatment protocol was positively related to WTP. CONCLUSION: The respondents positively valued the free ARVs. This calls for greater financial support for the sustainable provision of the treatment service. However, holistic financing mechanisms should be explored to ensure sustained funding in the event of complete withdrawal of donor support.

Socioeconomic status and barriers to the use of free antiretroviral treatment for HIV/AIDS in Enugu State, south-eastern Nigeria.

With about 3 million people living with HIV, Nigeria has approximately 8% of the global burden of HIV cases. In 2009, only about 34% of those in need of antiretroviral treatment (ART) were able to access care, which means that Nigeria was far from achieving the United Nations target of 'universal access' by 2010. This study aimed to describe the barriers to accessibility and the coping strategies employed to overcome these barriers among users of free ART services overall and by socioeconomic status (SES). Data were collected from 240 people receiving ART at one urban and one peri-urban health facility in Enugu State, south-eastern Nigeria. Information on SES, demographic characteristics, and barriers and coping mechanisms for accessing ART were elicited from the respondents. The high cost of transportation, HIV stigma, and long waiting hours were found to be key barriers to the use of ART services. On average, ART clients spent just under four hours at the clinic during their monthly appointments. The use of personal savings and financial support from relatives were the main means to access treatment. When the data were analysed according to clients' SES, transportation costs were a chief concern among the poorest while those who were better off were more likely to be concerned about stigma and discrimination. These findings should be borne in mind when designing and locating services to maximise ongoing accessibility to ART.

Investigating determinants of out-of-pocket spending and strategies for coping with payments for healthcare in southeast Nigeria.

BACKGROUND: Out-of-pocket spending (OOPS) is the major payment strategy for healthcare in Nigeria. Hence, the paper assessed the determinants socio-economic status (SES) of OOPS and strategies for coping with payments for healthcare in urban, semi-urban and rural areas of southeast Nigeria. This paper provides information that would be required to improve financial accessibility and equity in financing within the public health care system. METHODS: The study areas were three rural and three urban areas from Ebonyi and Enugu states in South-east Nigeria. Cross-sectional survey using interviewer-administered questionnaires to randomly selected householders was the study tool. A socio-economic status (SES) index that was developed using principal components analysis was used to examine levels of inequity in OOPS and regression analysis was used to examine the determinants of use of OOPS. RESULTS: All the SES groups equally sought healthcare when they needed to. However, the poorest households were most likely to use low level and informal providers such as traditional healers, whilst the least poor households were more likely to use the services of higher level and formal providers such as health centres and hospitals. The better-off SES more than worse-off SES groups used OOPS to pay for healthcare. The use of own money was the commonest payment-coping mechanism in the three communities. The sales of movable household assets or land were not commonly used as payment-coping mechanisms. Decreasing SES was associated with increased sale of household assets to cope with payment for healthcare in one of the communities. Fee exemptions and subsidies were almost non-existent as coping mechanisms in this study CONCLUSIONS: There is the need to reduce OOPS and channel and improve equity in healthcare financing by designing and implementing payment strategies that will assure financial risk protection of the poor such pre-payment mechanisms with government paying for the poor.

Are there geographic and socio-economic differences in incidence, burden and prevention of malaria? A study in southeast Nigeria.

RATIONALE: It is not clearly evident whether malaria affects the poor more although it has been argued that the poor bear a very high burden of the disease. This study explored the socioeconomic and geographic differences in incidence and burden of malaria as well as ownership of mosquito nets. METHODS: Structured questionnaires were used to collect information from 1657 respondents from rural and urban communities in southeast Nigeria on: incidence of malaria, number of days lost to malaria; actions to treat malaria and household ownership of insecticide treated and untreated mosquito nets. Data was compared across socio-economic status (SES) quartiles and between urban and rural dwellers. RESULTS: There was statistically significant urban-rural difference in malaria occurrence with malaria occurring more amongst urban dwellers. There was more reported occurrence of malaria amongst children and other adult household members in better-off SES groups compared to worse-off SES groups, but not amongst respondents. The average number of days that people delayed before seeking treatment was two days, and both adults and children were ill with malaria for about six days. Better-off SES quartile and urban dwellers owned more mosquito nets (p < 0.05) (treated and untreated). CONCLUSION: Malaria occurs more amongst better-off SES groups and urban dwellers in southeast Nigeria. Deployment of malaria control interventions should ensure universal access since targeting the poor and other supposedly vulnerable groups may exclude people that really require malaria control services.

Is community-based health insurance an equitable strategy for paying for healthcare? Experiences from southeast Nigeria.

OBJECTIVES: To determine how equitable enrolment and utilization of community-based health insurance is in two communities with varying levels of success in implementing the scheme. METHODS: The study was undertaken in two communities in Anambra state, southeast Nigeria. Data was collected using a questionnaire that was administered to 971 respondents in two communities selected by simple random sampling. Data analysis examined socio-economic status (SES) differences in enrolment levels, utilization, willingness to renew registration and payments. RESULTS: Enrolment level was 15.5% in the non-successful community and 48.4% in the successful community (p<0.0001). However, there was no inequity in enrolment, willingness to renew registration and utilization of services. Equal amounts of money were paid as registration fee and premium by all SES quartiles. There were no exemptions and no subsidies. CONCLUSION: Enrolment was generally low and contributions were retrogressive. The average premiums were also small. However, there was equitable enrolment and utilization of services. Efforts need to be made to increase the number of enrolees, so as to increase the pool of funds and risks. Payments by enrolees especially in poor and rural communities should be supplemented by subsidies from government and donors in order to ensure equitable financial risk protection.

Improving equity in malaria treatment: relationship of socio-economic status with health seeking as well as with perceptions of ease of using the services of different providers for the treatment of malaria in Nigeria.

BACKGROUND: Equitable improvement of treatment-seeking for malaria will depend partly on how different socio-economic groups perceive the ease of accessing and utilizing malaria treatment services from different healthcare providers. Hence, it was important to investigate the link between socioeconomic status (SES) with differences in perceptions of ease of accessing and receiving treatment as well as with actual health seeking for treatment of malaria from different providers. METHODS: Structured questionnaires were used to collect data from 1,351 health providers in four malaria-endemic communities in Enugu state, southeast Nigeria. Data was collected on the peoples' perceptions of ease of accessibility and utilization of different providers of malaria treatment using a pre-tested questionnaire. A SES index was used to examine inequities in perceptions and health seeking. RESULTS: Patent medicine dealers (vendors) were the most perceived easily accessible providers, followed by private hospitals/clinics in two communities with full complement of healthcare providers: public hospital in the community with such a health provider and traditional healers in a community that is devoid of public healthcare facilities. There were inequities in perception of accessibility and use of different providers. There were also inequity in treatment-seeking for malaria and the poor spend proportionally more to treat the disease. CONCLUSION: Inequities exist in how different SES groups perceive the levels of ease of accessibility and utilization of different providers for malaria treatment. The differentials in perceptions of ease of access and use as well as health seeking for different malaria treatment providers among SES groups could be decreased by reducing barriers such as the cost of treatment by making health services accessible, available and at reduced cost for all groups.