Household water, sanitation, and hygiene practices in Ghana from 1993–2022: a non-linear multivariate Poisson decomposition and traditional predictive modelling approach

Key Points

• Inequities in water access remain a significant issue in Ghana, affecting rural and poorer households.
• Over the past decades, WASH coverage has improved, yet disparities persist across various demographic groups.
• Analysis employed non-linear multivariate Poisson decomposition methods to understand structural inequalities in WASH.
• Addressing wealth, education, and infrastructure is crucial to achieving universal WASH access and supports Sustainable Development Goal 6.