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 |