An information intervention in India reduces consumption of arsenic-contaminated drinking water and has small effects on health
Shambhavi Priyam e outros, 2026 · PNAS Nexus
Providing households with an informational video and testing their drinking water reduced the probability of consuming arsenic-unsafe water by 7.3 percentage points after one year.
Estimativa · Household drinking water arsenic exceeding WHO limit (10 μg/L), indicator (0/1)
-0,0730 [-0,144; -0,00244]
change in probability (0-1) · calculado a partir do erro-padrão
p < 0.05
- Desenho
- Experimento aleatório por conglomerados. Cluster RCT across 156 villages
- População
- Households in low-caste hamlets in 156 villages in Samastipur and adjoining districts, Bihar, India (2019–2021)
- Amostra
- 5.819 · Household-wave observations across baseline, midline, and endline
Onde está o número
Table 1, column (3), row 'Individual × endline'
Individual × endline | 1.348*** | 0.060** | −0.073** | (0.087) | (0.022) | (0.036)
Contexto
What changed: Households watched an 8-minute video on arsenic risks and low-cost mitigation practices and received test results for their drinking water. Comparison: Control households saw an unrelated video about wildlife conservation and received no water test results. Limits: Health outcomes were self-reported and imprecisely estimated, and tube-well switching did not occur.
Caminho no grafo
- FamíliaInformação e persuasão
- TipoCampanha de informação
- EixoÁgua e saneamento
MAGI só cita evidência deste instrumento
Lugares do estudo
- Samastipur · Distrito ou local · IN
- Licença
- CC-BY
- Revisão
- Extraído por máquina, não revisadoExtraído por: gemini-3.8-flash, 2026-10-23