Access to water, sanitation, and hygiene (WASH) facilities and key influencing factors in coastal households, Bangladesh.

This study assessed the accessibility and determinants of water, sanitation, and hygiene (WASH) facilities in Bangladesh's climate-sensitive coastal region, which is highly vulnerable to sea-level rise, salinity intrusion and extreme weather events. A cross-sectional survey was conducted from March to July 2023, involving 471 households across nine subdistricts within three coastal zones using a three-stage cluster sampling technique. Multivariable logistic regression was performed to identify the associated factors, considering WASH indicators (as defined by the WHO/UNICEF Joint Monitoring Program) as outcomes and sociodemographic characteristics as exposure variables.