| Methods |
Follow‐up of the WASH Benefits Bangladesh cluster‐randomised controlled trial. Access to and reported use of latrines was high in both arms, and latrine quality was significantly improved by the intervention, while use of child faeces management tools was low. A random subset of households from the sanitation and control arms was enrolled into a longitudinal substudy, which measured child health with quarterly visits between 1 to 3.5 years after implementation. |
| Participants |
9800 observations on children < 5 years through intention‐to‐treat analysis using generalised linear models with robust standard errors. 720 households (360 per arm) from the parent trial were enrolled and made 9800 child observations between June 2014 and December 2016. |
| Interventions |
Multicomponent sanitation intervention including periods with differing intensity of behavioural promotion: water, sanitation, hygiene, and nutrition interventions. The sanitation intervention included provision of or upgrades to improved latrines, sani‐scoops for faeces removal, children's potties, and in‐person behavioural promotion. Promotion was intensive up to 2 years after intervention initiation, decreased in intensity between years 2 to 3, and stopped after 3 years. The study period included approximately 1 year of high‐intensity promotion, 1 year of low‐intensity promotion, and 6 months with no promotion. |
| Outcomes |
Diarrhoea and ARI, at 1 to 2 years after intervention implementation to 3.5 years (follow‐up). Outcomes were caregiver‐reported and there were limited data collected after promotion ceased. |
| Notes |
Trial registration: ClinicalTrials.gov; NCT01590095; https://clinicaltrials.gov/ct2/show/NCT01590095
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