Interactions between BCG and other standard childhood vaccinations or vitamin supplements on the risk of suspected ALRI in the primary cohort. Symbols: Bars (I), 95% CI; dots (○/●), point estimate. Models were stratified by whether children did (●) or did not receive (○) the other vaccine/supplement. Reference group was BCG unvaccinated children for all plots. See Table 1 footnote for adjusted variables.