Ethnicity and access to water, sanitation, and hygiene in Bangladesh: a study using MICS data and policy reviews

Safe drinking water, sanitation, and hygiene (WASH) are crucial to human health. Reducing inequalities and ensuring universal access to WASH are essential to achieving the agenda of sustainable development. We aimed to measure access to WASH among ethnic minority populations in Bangladesh and understand the situation and factors affecting WASH practices among them. Additionally, we reviewed policy related to WASH to highlight the inequality faced by ethnic minority populations.

We utilized data from the multiple indicator cluster survey-2019. We used the chi-square test for bivariate analysis and multilevel mixed-effect logistic regression analyses to identify the effect of ethnicity on WASH in Bangladesh after controlling selected covariates. Furthermore, we systematically reviewed Bangladesh's WASH-related policies and programs.

While 98.5% of Bengalis had access to basic drinking water services, the percentage is 60.6% for the ethnic minority population. For improved sanitation facilities not shared with others, the difference between Bengali and ethnic populations was 22.3% (64.6% vs. 42.3%). On the other hand, 75% of the Bengali population had a handwashing facility with water and soap, and 50% of the ethnic population had them. Ethnicity appeared to be a statistically significant predictor of every component of WASH. Compared to Bengali, the ethnic population had 87%, 45%, 31%, and 45% less access to water (aOR = 0.13, p ≤ 0.001), sanitation (aOR = 0.55, p ≤ 0.001), and handwashing (aOR = 0.69, p ≤ 0.05), and WASH facilities aOR = 0.55, p ≤ 0.001), respectively. Among the policies of Bangladesh, only one identified action for WASH rights of ethnic minorities.

The government should identify the issues of WASH among ethnic minorities and represent them adequately in policies to achieve the aim of 'leaving none behind' of sustainable development goals.