Morbidity during the malaria transmission period in children who received at least one dose of SP or placebo.

*Incidence from the date of first dose of IPT with SP or placebo up to the end of December the same year.
#estimated as 100×(1-HR) where HR is the hazard ratio from Cox regression, without covariate adjustment. Efficacy against anaemia Hb<7, adjusted for effects of bednet use, centre, baseline haemoglobin concentration and presence of parasitaemia at baseline was 8.2% (95%CI −81%,53%), compared with an unadjusted estimate among the subset of individuals with non-missing covariate data of 13% (−69%,56%).