Determinants of Healthcare Insurance Coverage among Women of Reproductive Age in Tanzania: A Multilevel Mixed Effect Analysis
Department of Epidemiology and Biostatistics, Kilimanjaro Christian Medical University College, P. O. Box 2240 Moshi, Tanzania
Department of Clinical Nursing, The University of Dodoma, Dodoma, Tanzania
*Corresponding author: Sanun A Kessy, E-mail: sahnunally@outlook.comAbstract
Background
Health insurance has been one of the fundamental approaches of financing healthcare for sustainable Development goals (SDGs). There is a paucity of evidence on the determinants of healthcare insurance coverage among women of reproductive age in Tanzania, therefore this study aimed at assessing factors associated with access to health care insurance among women of reproductive age in Tanzania using national Demographic and health survey dataset.
Methodology
This study was an analytical cross-sectional study that utilized nationally representative secondary data sourced from the Tanzania Demographic and Health Surveys (TDHS) of 2022.A weighted sample of 15,254 women of reproductive age (15–49) was included in the study. A multilevel regression analysis was used to examine factors associated with health care insurance coverage. These results were presented using adjusted odds ratio (AOR) with a 95% confidence interval.
Results
In Tanzania the proportion of health insurance coverage among women of reproductive age was 5.8% whereby majority of women subscribing to employer’s insurance (3.9%). Older women (35–49) were more likely to be covered with health insurance compared those aged 15-24 (AOR =2.75, 95% CI: 2.19, 3.45). Similarly, married women had higher likelihood of health insurance coverage compared to unmarried (AOR=1.60, 95% CI: 1.33, 1.92). Furthermore, educated women were more likely to be covered with health insurance than uneducated women (AOR=6.96, 95% CI: 4.74, 10.22). Similarly, women who were exposed to mass media were more likely to be covered with health care insurance compared to unexposed (AOR=1.43, 95% CI: 1.14, 1.78).
Conclusion
Less than ten percent of Tanzanian women of reproductive age (WRA) are registered in health insurance, which is an unacceptably low coverage. This highlights the urgent need to eliminate barriers preventing this population’s access to healthcare in order to achieve Standard Development Goals (SDGs) by 2030. The interplay of socioeconomic factors and access to information underscores the need for multifaceted approaches to enhance healthcare coverage among women of reproductive age in Tanzania.
Article notes
Competing Interest Statement
The authors have declared no competing interest.
Funding Statement
The author(s) received no specific funding for this work.
Background
Globally, health insurance has been one of the fundamental approaches of financing healthcare for sustainable Development goals (SDGs) by 2030 (1). About 2 billion individuals are struggling with financial difficulties, with 1 billion encountering severe out of pocket (1). Additionally, 344 million people globally are being pushed further into the burden of the health care costs (1,2). Globally the significance of Universal Health Coverage (UHC) has been emphasized by its incorporation into the Sustainable Development Goals (SDGs) stating that, all individuals should have equal access to health care as right rather than a privilege with its target to be achieved by 2030 (3,4).
Universal Health Coverage (UHC) means that all individuals and communities receive health services they need without suffering financial hardship. It includes the full spectrum of essential, quality health services, from health promotion to prevention, treatment, rehabilitation, and palliative care (2). The global trajectory is deviating from the path to achieve substantial advancements in universal health coverage, a goal outlined in the Sustainable Development Goals (SDGs) target 3.8 set for 2030 which aim at protecting the vulnerable population from financial risks associated with severe health-related expenses (5).
UHC is important as it ensures provision of essential health services based on need, equitable access for the entire population, and the presence of financial-risk protection mechanisms to prevent economic hardship from healthcare expenses are key components of universal health coverage (14). Women face considerable challenges in accessing medical services, primarily stemming from limited opportunities for economic empowerment and addressing their distinct healthcare requirements (5).
In Sub Saharan Countries, the prevalence of universal health coverage of health insurance coverage to be less than 10% (23,25). The outcomes of Health Insurance (HI) implementation have been varying. Findings from research in Ghana (17) and Rwanda (18) indicate that HI has contributed to greater equity in access to care for the overall population, alleviating the financial burden of healthcare expenses among the impoverished. Conversely, study findings from Ghana suggests Health Insurance (HI) did not provide uniform protection to all its members. Instead, it favored individuals with higher education, greater wealth, and those living in proximity to health facilities more than others (19).
Furthermore, among Sub-Saharan countries there is a notable correlation between formal sector employment and access to health insurance compared to informal employment sector (20). Additionally, other factors such as such as income, education, household wealth status, marital status, age, and place of residence, as predictors of health insurance ownership (21,23).
Despite notable accomplishments, the healthcare sector grapples with substantial hurdles in striving to deliver high-quality care to all individuals, regardless of their financial capacity to afford services. Women encounter more pronounced obstacles in accessing critical healthcare services, including routine antenatal visits and childbirth services (5,26, 27).
In Tanzania, over 80% of the population continues to rely on out-of-pocket payments for accessing healthcare services, often resulting in significant financial burdens (6). Tanzania implemented health insurance initiatives in the mid-1990s, introducing the National Health Insurance Fund (NHIF) in 1996 and the Community Health Fund (CHF) in 2001. The CHF, designed for the informal and rural communities, operates on a voluntary basis, offering coverage for up to six family members through a fixed annual payment, other health insurances such as Social Health Insurance Benefit (SHIB) established as a benefit under the National Social Security Fund (NSSF) and the Community Health Fund (CHF) and Tiba Kwa Kadi (TIKA) (6,7).
The capacity of women in the reproductive age group to attain affordable health coverage and care carries significant societal implications and hinges on the economic well-being of both women and their families. Nevertheless, the accessibility of healthcare services for women in the reproductive age group remains limited in Low- and Middle-Income Countries (LMIC), primarily due to financial.
In Tanzania, universal health coverage is in line with government policy of improving maternal health among reproductive age in order to improve maternal morbidities and mortality, more than 90% of women of reproductive do not have any health insurance (10). Despite several studies that have been done in Tanzania which were small scale, thus there is still a paucity of national wide information regarding health insurance utilizations. Additionally, there is a notable absence of published literature addressing health insurance coverage in the country. Hence to address this gap, the present study aimed to evaluate the health insurance coverage and its associated factors among women in the reproductive age group in Tanzania utilizing data from the Demographic and Health Survey (DHS). The findings of this study offer valuable insights for health planners, program developers, and healthcare professionals, providing a foundation for enhancing financial protection and service utilization among women of reproductive age.
Methodology
Study setting and period
The study made use of the 2022 Tanzania Demographic and Health Survey (TDHS) data, a countrywide cross-sectional survey carried out every five years(1). Tanzania, the largest country in East Africa, spans an area of 940,000 square kilometers, including 60,000 square kilometers of inland water. The study incorporated data from all regions of the United Republic of Tanzania As of 2022, the estimated population of Tanzania stood at 61,741,120, with an annual population growth rate of 3.2% (2,3).
Study design and data source
This study was an analytical cross-sectional study that utilized nationally representative secondary data sourced from the Tanzania Demographic and Health Surveys (TDHS) of 2022.The TDHS, is funded by the U.S Agency for International Development and implementation is carried out by the Ministry of Health (MoH) in Tanzania Mainland and Zanzibar, as well as the National Bureau of Statistics (NBS), the Office of the Chief Government Statistician (OCGS), with technical support provided by ICF International (2–5).
Data collection procedure
The data collection method of the surveys involves using a standardized questionnaire that is uniform across countries to gather information from women aged 15–49. The questionnaire is often translated into the primary local languages of the participating nations. According to the DHS, these translated questionnaires, along with the original English version, undergo pretesting in both English and the local dialect to ensure their accuracy. Subsequently, during the pretest phase, field workers engage in an interactive discussion of the questions, providing suggestions for improvements across all versions. After the field practice, a debriefing session is conducted with the pretest field personnel, and adjustments are made to the questionnaires based on the insights gained from this process(1).
Sampling procedure and size
The survey employed face-to-face questionnaire interviews and utilized a stratified design with multistage cluster sampling to gather information on various aspects such as population health status, neonatal mortality, health behaviors, nutritional status, family planning, and demographics.
In the initial stage, 629 clusters were identified, from which households were then selected. Among these clusters, 26 households were systematically chosen to be representative from each cluster, resulting in a total of 16,354 households included in the survey. Eligibility for inclusion was based on the presence of all women aged 15-49 years in the selected household on the night prior to the interview. Further details on the sampling procedure and design have been previously documented(1). A total of 15,254 women who had information on all the variables of interest were included in the study (Table 1). We adhered to the guidelines provided by the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement when writing the manuscript(6).The DHS data is freely available for download at https://dhsprogram.com/data/available-datasets.cfm
Study variables
The outcome variable of this study was health insurance coverage. This was from the question “are you covered by any health insurance?”. Response is coded as 0 = “No” and 1 = “Yes”. The explanatory variables were age of the woman, marital status, education, employment, residence, wealth index, head of household sex, head of household age, media exposure, visited by healthcare worker for past12 months and visited health facility for the past 12 months. Age was recorded as 15-24, 25-34 and 35-49. Marital status was categorized as married and unmarried. Wealth status was categorized as poor, middle, and rich. Education was classified into three categories: no education, primary education, secondary education, or higher education. A new variable of media exposure was generated from household has either tv or radio. Our generated study variables and coding were based on previous literature (7–10).
Statistical analysis
We used Stata software, version 18.0 (Stata Corporation, College Station, TX, USA) for all statistical analyses. Initial presentation of health insurance coverage was done using percentages to show the proportion of women covered. Subsequently, through cross-tabulation, we explored the distribution of health insurance coverage among various background characteristics. Before conducting the regression analysis, we assessed potential collinearity among the variables using the variance inflation factor (VIF). Results indicated minimal collinearity, with VIF values ranging from 1.44 to 1.45 and a mean of 1.61, suggesting no significant multicollinearity concerns. To investigate the factors linked with health insurance coverage, we employed multilevel binary logistic analysis. This approach was chosen due to the complex survey design of the DHS, which involved a two-stage cluster sampling. Four models were utilized for analysis: Model 0: An empty model without any explanatory variables, Model I: Including individual-level factors, Model II: Incorporating community level factors and Model III: Considering all explanatory variables together. Crude and adjusted odds ratios (AOR) with corresponding 95% confidence intervals (CIs) were fit for each model. Both fixed and random effects were included in all models. Random effects represented the variation in health insurance coverage based on primary sampling unit (PSU), measured by the Intra-Cluster Correlation Coefficient (ICC). Fixed effects illustrated the relationship between explanatory variables and the outcome. Model fitness was evaluated using the Akaike Information Criterion (AIC), allowing us to determine how well each model fit the data. A significance level of p < 0.05 was used for all statistical tests. Furthermore, we weighed all analyses to account for disproportionate sampling and non-response.
Ethical clearance
Permission to download and utilize the data was obtained from the DHS Program/ICF International via http://www.dhsprogram.com. The data was strictly used for the current study’s objectives. Extensive details regarding the methodology and ethical considerations of the DHS program can be found in the published reports of the Tanzania Demographic and Health survey(1,5).
RESULTS
Participants background characteristics
Among 15,254 participants of this study, the mean (SD) age was 29.3(9.8). The overall health insurance coverage among women of reproductive age was about 6%. Health insurance coverage was prevalent (39.6%) among women aged 35+ years. Around half (51.0%) women who owned health insurance were married. The majority of women (68.8%) of study participants who were covered with health insurance had secondary or higher education. A significant percent (68.8%) of participants who were insured were working. Slightly more than half (53.7%) of the study participants who owned health insurance were from rural areas (Table 1).
Most (80.8%) of women of reproductive age who owned health insurance were from rich household. The majority (67.1%) of women of reproductive age who were insured were living in household whose head was male. Almost half (47.7%) of the women who were insured were living in household whose head was aged 35-49 years of age. The majority (78.5%) of women who were insured had been exposed to media. Almost all (95.1%) of the insured women had been visited by field worker in the last 12 months. The majority (62.9%) of the study participants who are insured visited a health facility for the past 12 months (Table 1).
Proportional of health insurance coverage
In Tanzania the proportion of health insurance coverage among women of reproductive age is 5.8%. The rest of the group are not covered with any health insurance (figure 1)
Specific types of health insurance coverage
Figure 2 shows percentage of women with specific types of health insurance. Most of them (5.8%) have any insurance followed by employers’ insurance (3.9%) and the lowest (0.2%) being social security insurance.
Determinants of health insurance coverage among Tanzanian reproductive age women
Fixed effect
Table 2, Model III presents determinants of health insurance coverage among Tanzanian reproductive age women. Older women (35–49) were more likely to be covered with health insurance compared to those aged 15-24 (AOR =2.75, 95% CI: 2.19, 3.45). Similarly, married women had higher likelihood of health insurance coverage compared to unmarried (AOR=1.60, 95% CI: 1.33, 1.92). The odds of health insurance coverage were higher among educated women (secondary/higher) compared to uneducated women (AOR=6.96, 95% CI: 4.74, 10.22). Women who were exposed to media had higher odds of health insurance coverage compared to unexposed (AOR=1.43, 95% CI: 1.14, 1.78). Women of reproductive age who visited health facility for the past 12 months had higher likelihood of health insurance coverage compared to those who didn’t (AOR=1.28, 95% CI: 1.09, 1.51). Additionally, participants from rich households were more likely to be covered with health insurance compared to their counterparts (AOR=2.78, 95% CI: 1.99, 3.87). We found that women who are living in households lead by female.
Random effect
Table 2 presents results for random effect. We observed that the Intra-Cluster Correlation (ICC) value in Model III was 0.27 indicating that approximately 27% of the variability in health insurance coverage is attributed to differences between the clusters. The cluster-level variation, as indicated by the ICC values were 29%, 26%, 24% and 27% for Model 0, Model I, Model II and Model III respectively. We opted to focus on interpreting the results of Model III for discussion, as it had the lowest AIC value (5603.60) among the models, indicating a goodness of fit.
Discussion
This study aimed to analyze the determinants affecting the possession of health insurance among Tanzanian women as a key approach to achieving universal health coverage. It found that insignificant majority of women of about 5.8 % own any form of health insurance. The research identified several factors associated with health insurance coverage, including age, economic status, educational attainment, marital status, and mass media exposure, Visited health facility last 12 months.
Our study revealed that only 5.8% of Tanzanian women possess health insurance, figure is contrary with Ghana having more than half percent accessing health healthcare (34). These findings are in line with less than one tenth of the women of the reproductive age in Mauritania, Ethiopia and Nigeria. (25,33,35). This disparity can be explained that in Ghana there is a difference in health policy agendas, like livelihood empowerment againist Poverty Program (LEAP) in Ghana (34) A pro-poor intervention policy, use of Participatory welfare ranking (PWR) and geographic targeting (GT) for poor groups helped in improving efficiency and equity needs under NHIS program in Ghana. It has been mandatory and compulsory for all Ghanaians to join health insurance scheme in Ghana (34).
This study found that compared to being unmarried, being married was associated with having health insurance coverage. This suggests that having a partner or spouse is beneficial, potentially because of the financial support from being in a dual-income household, which offers more avenues for acquiring health insurance. Similar findings have been reported in other studies conducted in East Africa, Zambia and Kenya (13,23,36) but inconsistence with the study done in Malawi (4). Additionally, unmarried women may struggle to afford insurance premiums and deductibles and may perceive their risk of illness as lower (23).
The study suggests that women 35 years of age and older are more likely to subscribe to healthcare insurance, which is in line with findings from several other African nations, such as South Africa, and Nigeria and the one done in sub–Saharan Africa (5,20,37). There are several reasons for this trend. Firstly, people in this age group typically find employment, which makes it possible for them to pay for health insurance. Furthermore, older women may have more children who are more likely to become sick and frequently take on caregiving responsibilities, which may lead them to look into insurance to reduce their out-of-pocket costs.
Women’s education level had a substantial impact on whether or not they had health insurance. Individuals with more educational attainment were shown to be more likely than those without formal education to have health insurance. This finding adheres to other studies that show education is a significant factor in predicting one’s ability to obtain health insurance (34,38–40). Education may help people obtain information more easily and increase their chances of entering high-paying professions, which are more likely to offer insurance coverage, which explains the positive association.
In comparison to women residing in the poor household, the current study showed that women residing in the rich household had greater odds of having health insurance coverage. The findings of the national survey carried out in Ethiopia were consistent with these results (41), indicating a relationship between income levels and the probability of acquiring health insurance. In contrast, women from wealthier homes had lower probabilities of having health insurance coverage, according to different research conducted in Sudan (42).
The observed phenomenon of women with a history of visiting health facilities in the last 12 months exhibiting higher odds of having insurance coverage compared to their counterparts can be attributed to several factors. It is plausible that frequent visits to health facilities provide these women with increased exposure to healthcare services, thereby fostering a deeper understanding of the importance of insurance coverage and potentially reducing the barrier of out-of-pocket expenses. This finding aligns with existing research conducted in East African countries (23).
Furthermore, compared to women who were not exposed to the media, those who were exposed showed a higher likelihood to use health insurance. This finding is consistent with research from Ethiopia, Kenya, and Sub-Saharan Africa (34,43,44). this can be explained by high coverage of internet and other media channel in the country which can act as an instrument for knowledge dissemination and raises awareness of the importance of health insurance.
Strength and limitation
The most current nationwide data set was used in the present study. In addition, Furthermore, the study adds to the body of knowledge regarding health insurance ownership among reproductive-age women. In this regard, demographic and health surveys serve as an essential resource for bridging the data gap and enabling evidence-based population health planning and intervention in the recipient nation. Furthermore, the datasets are nationally representative and had a sizable sample size. As such, the results can be generalized to the total female population. It is important to admit limitations.
Due to the secondary source nature of the data analysis, it is possible that additional variables or factors that could have affected health insurance coverage but were not included in the study because they were not included in the DHS dataset existed. Furthermore, drawing conclusions about causality is limited by the DHS’s cross-sectional design. Self-reports were also used for collecting data. As a result, biases in social desirability and recall may affect the results.
Conclusion
Less than ten percent of Tanzanian women of reproductive age (WRA) are registered in health insurance, which is an unacceptably low coverage. This highlights the urgent need to eliminate barriers preventing this population’s access to healthcare. The following stand out as important variables influencing health insurance coverage: marital status, wealth, level of education, media exposure, and recent medical facility visits.
The complicated interactions between socioeconomic and informational factors when making healthcare decisions among WRA in Tanzania are highlighted by these findings. Multifaceted approaches are essential to effectively increase coverage. Initiatives aimed at empowering women economically, such microfinance and income-generating businesses, can increase their ability to pay insurance costs.
In a similar way, encouraging educational attainment especially in the areas of health and finance through comprehensive education initiatives and chances for vocational training will enable WRA to make knowledgeable decisions on health insurance. Interventions should also prioritize the empowerment of widows and single women by ensuring them access to resources and the freedom to make their own decisions. Moreover, using mass media platforms to spread knowledge about health insurance advantages may also be crucial in raising WRA awareness and adoption. Policymakers and other stakeholders should take note of these observations as Tanzania works to achieve universal health coverage. These interventions should be focused on addressing the root causes of the problem and ensuring that all population segments have fair access to basic healthcare services.
Data Availability
The DHS data is freely available for download at https://dhsprogram.com/data/available-datasets.cfm
Acknowledgments
The authors are grateful to MEASURE DHS for providing them with the data set.
Funding
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Disclosure
The authors report no conflicts of interest in this work.
Abbreviations
AIC Akaike Information Criteria
BIC Bayesian Information
Criteria CI Confidence Interval
CHF community health fund
DHS Demographic and Health Survey
EA Enumeration Area
HI Health Insurance
LMIC Low and Middle Income Country
NBS National Bureau of Statistics
NSSF National Social Security Fund
PR Prevalence Risk
PSU Primary Sampling Unit
SDGs Sustainable development goals
UHC Universal health coverage
VIF Variance Inflation Factor
TIKA Tiba Kwa Kadi
SHIB Social Health Insurance Benefit
WRA Women of Reproductive Age
TDHS Tanzania Demographic and Health Survey