Wijewardene 1992 SRI.

Methods	Case‐control study (community‐based)
Participants	Cases: families with 1 child aged < 5 years having acute diarrhoea in previous 6 months (identified through community visits), n = 100. Controls: families with ≥ 1 child aged < 5 years that did not have a single episode of diarrhoea during the previous 6 months, matched for age of child, occupation, and ethnic group of father, n = 100.
Interventions	Risk factor of interest: not disposing of children's faeces in latrine vs disposing of it in latrine.
Outcomes	Acute diarrhoea for children aged > 1 years: ≥ 3 loose stools in 24 hours for ≤ 7 days
Notes	Location: Urban, Galle municipality, Sri Lanka Length of recruitment: no details Publication status: journal
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	NA
Allocation concealment (selection bias)	Unclear risk	NA
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	NA
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	NA
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	NA
Selective reporting (reporting bias)	Unclear risk	NA
Other bias	Unclear risk	NA
Similarity of baseline outcome measurements	Unclear risk	NA
Similarity of baseline characteristics	Unclear risk	NA
Adequate allocation of intervention concealment during the study	Unclear risk	NA
Adequate protection against contamination	Unclear risk	NA
Confounders adequately adjusted for in analysis/design	Unclear risk	NA
Recruitment bias	Unclear risk	NA
Baseline imbalance	Unclear risk	NA
Loss of clusters	Unclear risk	NA
Incorrect analysis	Unclear risk	NA