Table 1. Outcome measures.

Child outcomes	Maternal outcomes	Environmental outcomes
Prevalence of any soil-transmitted helminth infection (primary outcome) Prevalence of individual soil-transmitted helminth infections Diarrhoea prevalence Child gut microbial communities Child antimicrobial resistance genes Length-for-age Z-score Weight-for-length Z-score Weight-for-age Z-score Frequency of child soil contact Frequency of child soil ingestion Mean ASQi Z-score at 12 and 24 months Mean overall Family Care Indicator score at 12 and 24 months	Maternal stress Maternal depression Maternal satisfaction with quality of life Memory span Non-verbal reasoning score Maternal cognitive inhibition Maternal cognitive flexibility and attention shifting Maternal daily discretionary time	Any soil-transmitted helminth prevalence in household floor samples Prevalence of individual soil-transmitted helminth infections in household floor samples Larvated Ascaris lumbricoides prevalence in household floor samples Larvated Trichuris trichiura prevalence in household floor samples Culturable E. coli abundance in household floor samples Culturable cefotaxime-resistant E. coli prevalence in household floor samples Culturable E. coli abundance in child hand rinse samples Culturable extended spectrum beta-lactamase (ESBL) producing E. coli prevalence in household samples ESBL-coding genes in household samples Mass of floor dust (g per m2) Microbial communities in environmental samples Antimicrobial resistance genes in environmental samples

ASQiAges and Stages Questionnaire Inventory