RESUMEN
BACKGROUND: Ethiopia has made strides in reducing maternal mortality, but significant discrepancies in maternal health service utilization exist across socioeconomic levels. According to studies, women from higher-income households are far more likely to use essential services such as antenatal care, delivery care, and postnatal care than poorer women. This wealth disparity is a primary contributor to persistently high maternal mortality, particularly among poor populations. The study's goal was to assess wealth disparities in maternal health service uptake and identify contributing factors. METHODS AND MATERIALS: We used the Ethiopian Mini Demographic Health Survey (EMDHS), conducted in 2019 on women aged 15-49 living in selected census areas, with a weighted sample size of 3,909. The Erreygers Concentration Index (ECI) was used to measure wealth inequalities in maternal health care, and the ECI decomposition was used to identify factors contributing to inequality in maternal health services. RESULTS: Maternal health service utilization was pro-rich among women in Ethiopia. The prevalence of antenatal care service (ANC), delivery, and postnatal care (PNC) service utilization showed a pro-rich distribution among Ethiopian women, with ECI = 0.115 (95% CI: 0.091-0.137), ECI = 0.223 (95% CI: 0.191-0.276), and ECI = 0.121 (95% CI: 0.041-0.200), respectively. The ECI indices were decomposed to examine the contributing factors to disparities in maternal service utilization in Ethiopia. Mother's current age, household family size, region, birth order, and parity were contributors to maternal health service utilization. CONCLUSION: The ANC service, delivery service and PNC service utilization showed a pro-rich distribution among Ethiopian women. Mother's current age, household family size, region, birth order, and parity are important contributors of maternal health service inequality. To improve access and usage among low-income women, policymakers can develop programs including increasing the number of free or subsidized services and providing transportation.