Per-protocol analysis of impact on primary outcomes.
aMD, adjusted mean differenceCI, confidence intervalHAZ, height-for-age z-scoreMDAT, Malawi Developmental Assessment ToolOR, odds ratio; SRT, saccadic reaction time.Notes: Adherence defined as CHW having visited home in last month based on data collected during the phone-based surveys. All models include the following covariates: variables included in the randomization procedure; child age, sex and number of siblings; household wealth and receipt of Child Support Grant; and caregiver age and education. MDAT models include additional covariates indicating location of MDAT assessment (home or lab) and assessor fixed effects. Lab subsample estimates are based on analysis of panel data from 3 rounds of lab assessment using linear mixed models with cluster and individual random effects and month of assessment fixed effects.