Baseline characteristics of 5,233 study children in the 50 control and 51 IST intervention schools.

aPercent of non-missing children in each study group presented for categorised data. For continuous data mean (SD) [min,max] is presented.bAll characteristics have less than 2% missing data with the exception of following indicators (reported as control/intervention): stunted and thin both (138/248 [5.5/9.2%] missing), underweight (1,538/1,744 [61.0/64.4%] missing), net use last night (661/840 [26.2/31.0%] missing).cIn Class 1, mean (SD) for age is: 7.8 (1.7) and in Class 5, mean (SD) for age is:12.5 (1.6).dPercentages of treated nets and children sleeping under a net last night are presented only for those children who were reported as usually sleeping under a net.eStudy endpoints have less than 5% missing data at baseline with the exception of the following (reported as control/intervention): Hb (147/255 [5.8/9.4%] missing), P. falciparum infection (274 [10.1%] missing in intervention group), class 5 attention (79/72 [6.1/5.2%] missing).fCoefficient of variation (k) estimated for binary outcomes using available baseline (i.e., only using data from IST schools for P. falciparum) and interclass correlation coefficient (ICC) estimated for continuous outcomes using baseline measures.gNot measured at baseline in the control group.hPresented as mean (SD) [min,max].iIn class 1 sustained attention was measured by the “pencil tap test” and in class 5 sustained attention was measured by the “two digit code transmission test.”