Table 2. Univariate and multivariate logistic regression analysis of individual, HH and environmental risk factors for mRDT positivity (individual factors weighted for HH size).
| Variable | n | mRDT pos (no, %) | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|---|---|
| crude | weighted | crude | weighted | OR (95% CI) | P-value | OR (95% CI) | P-value | |
| Age (year) | ||||||||
| 1–4.9 | 48 | 1879 | 2(4.1) | 79(4.2) | 2.13(0.35–13.14) | 0.415 | 2.56(0.64–10.21) | 0.183 |
| 5–14.9 | 119 | 4450 | 4(3.4) | 200(4.5) | 1.70(0.37–7.77) | 0.491 | 2.24(0.38–13.15) | 0.371 |
| ≥15 | 225 | 7321 | 5(2.2) | 171(2.3) | 1.00 | 1.00 | ||
| Sex | ||||||||
| Male | 149 | 5407 | 3(2.0) | 129(2.4) | 0.60(0.16–2.31) | 0.461 | - | - |
| Female | 243 | 8243 | 8(3.3) | 321(3.9) | 1.00 | |||
| Has slept under LLIN last night | 392 | 13221 | ||||||
| Yes | 286 | 10264 | 10(3.5) | 400(3.9) | 1.00 | 1.00 | ||
| No | 106 | 3386 | 1(0.94) | 50(1.5) | 0.31(0.24–2.46) | 0.267 | 0.30(0.04–2.48) | 0.262 |
| LLIN/HH ratio | 392 | |||||||
| ≥0.5 | 98 | - | 6(6.1) | - | 0.28(0.08–0.94) | 0.04 | 0.27(0.08–0.92) | 0.036 |
| <0.5 | 294 | - | 5(1.7) | - | 1.00 | 1.00 | ||
| HH proximity to mosquito breeding site | 392 | - | ||||||
| ≥1000m | 380 | - | 9(2.4) | - | 0.12(0.02–0.64) | 0.013 | 0.12(0.02–0.64) | 0.014 |
| <1000m | 12 | - | 2(16.7) | - | 1.00 | 1.00 | ||
| Insecticide sprayed ≤3 months ago | 392 | - | ||||||
| Yes | 105 | - | 1(.95) | - | 3.76(0.46–29.7) | 0.210 | - | - |
| No | 287 | - | 10(3.5) | - | 1.00 | |||