OR = Odds Ratio; CI = Confidence Interval.
ap-value from chi-squared test;
bp-value from likelihood ratio test comparing random effects logistic regression models adjusting for between-household and between-cluster variation with and without characteristic of interest;
cAdjusted for variables included in final multivariable regression model as shown;
dp-value from Wald test in multivariable regression analysis;
eWald p-value from logistic regression with robust standard errors;
freference category for The Gambia = 0 years and comparison category is ≥1 year; reference category for Tanzania = 0–6 years and comparison category is 7+ years. Continuous education measure centred prior to regression modelling.