Table 1.

Characteristics of the 740 primary schoolchildren participating in the study

Characteristic	N = 740
Gender (n female, %)	394 (53.2)
Mean age (SD, years)	9.8 (2.2)
Mean weight (SD, kg)	28.5 (8.2)
WAZ (z-scores < −2) (n, %)	105 (14.2)
Household (HH) owning at least one bed-net (n, %)	662 (89.5)
Bed-net use in last 24 hours (n, %)	262 (35.4)
Asymptomatic Plasmodium infection (n, %)	223 (30.1)
Plasmodium falciparum	204
Plasmodium malarie	11
Plasmodium ovale	4
Plasmodium vivax	4
Gametocytes present (%)	22 (3.0)
Helminths present (%)	56 (7.6)
Ascaris lumbricoides	38
Hookworms	15
Trichuris trichiura	3
Mean hemoglobin (g/dL, SD)	11.7 (1.0)
Household > 500 m from health facility (n, %)	666 (90.0)
Mean score sustained attention test (SD)	9.4 (3.4)
Mean score abstract reasoning test (SD)	8.2 (2.6)