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A randomized controlled trial compares cost-effectiveness of water treatment systems, highlighting health benefits in Kenya.
Water treatment facilities in Kenya face challenges related to cost-effectiveness and sustainability. A randomized controlled trial was conducted across five districts in Kenya. Participants were randomly assigned to either receive standard or alternative water treatment facilities for a period of six months. The analysis revealed that the alternative water treatment systems reduced waterborne diseases by 30% compared to the standard systems, with an estimated cost-effectiveness ratio of $5 per disease prevented. The study provides evidence on the cost-benefit of different water treatment technologies in Kenya's context. Investment decisions should consider not only initial costs but also long-term health and financial outcomes. The maintenance outcome was modelled as Yᵢₜ=β₀+β₁Xᵢₜ+uᵢ+εᵢₜ, with robustness checked using heteroskedasticity-consistent errors.
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Kamari et al. (2000) studied this question.
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