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. 2011 Dec 1;85(6):1080–1086. doi: 10.4269/ajtmh.2011.10-0684

Table 1.

Study population characteristics at enrollment of ITN + IRS versus ITN only

ITN + IRS (N = 919) ITN only (N = 885) P value
Median age in years (range) 12 (0.5–105) 12 (0.6–91) 0.61
Female (%) 57 56 0.57
Head of household completed primary school (%) 20 32 0.03
Mother completed primary school (%) 21 29 0.05
Household type
Traditional mud hut (%) 10 3 0.002
Semi-permanent (corrugated iron roof) (%) 64 84 0.002
Permanent (concrete or stone walls) (%) 26 12 0.39
Eves open (%) 90 94 0.25
Mosquito prevention methods
Mosquito coils, insecticide spray, or repellents used in prior week (%) 6 6 0.96
Received IRS (%) 73 6 < 0.001
At least one bed net in house (%) 71 72 0.95
Slept under an ITN the prior night (%)
< 5 years 36 30 0.24
5–14 years 20 15 0.20
≥ 15 years 30 22 0.05
Overall 28 21 0.04
Fever in prior 2 weeks (%)
< 5 years 51 44 0.18
5–14 years 34 21 < 0.002
≥ 15 years 60 38 < 0.001
Overall 49 33 < 0.001
Took antimalarial in prior 2 weeks (%) 21 28 0.08
Took ACT in prior 2 weeks (%) 6 10 0.09
Mean hemoglobin (g/dL)
< 5 years 11.2 10.5 < 0.001
5–14 years 12.6 12.3 0.008
≥ 15 years 12.6 12.6 0.95
Overall 12.3 12.0 0.009
P. falciparum parasitemia prevalence (%)
< 5 years 8 6 0.48
5–14 years 12 9 0.37
≥ 15 years 2 2 0.95
Overall 7 5 0.39
Geometric mean P. falciparum parasite density per microliter) among participants with parasites 1,136 835 0.45
Clinical malaria (P. falciparum parasitemia with fever; %)
< 5 years 1.9 0.5 0.24
5–14 years 2.4 0.5 0.05
≥ 15 years 0.3 0.6 0.55
Overall 1.4 0.5 0.05