Table 1.

 Demographic factors at inclusion in trial. Values are number/total number (%) unless stated otherwise

Variable	Group
	Intervention	Control
Sex (male)	251/460 (55)	280/491 (57)
Median (interquartile range) age in months	24 (13-36)	24 (14-39)
Arm circumference <130 mm	54/454 (12)	60/489 (12)
High transmission season	258/460 (56)	269/491 (55)
House with ceiling	4/455 (0.9)	12/489 (2.5)
Impregnated bed net	77/455 (17)	89/488 (18)
Living in the BHP study area	139/460 (30)	141/491 (29)
Malaria parasite positive slide	318/460 (69)	338/491 (69)

BHP, Bandim health project.