Table 2.
Uni- and Multivariate Risk Factor Analysis for Malaria Infection in March 2016
| Risk Factor | n/N % | OR | OR 95% CI | aOR | aOR 95% CI |
|---|---|---|---|---|---|
| Age group, y | |||||
| <10 | 60/ 290 (20.7) | Ref | |||
| 10–29.9 | 70/ 243 (28.8) | 1.5** | .9–2.2 | 1.5** | 1.0–2.3 |
| ≥30 | 74/ 290 (25.5) | 1.2 | .8–1.8 | 1.2 | 0.8–1.8 |
| Sex | |||||
| Female | 89/ 399 (22.3) | Ref | |||
| Male | 115/ 424 (27.1) | 1.3 | .9–1.9 | 1.4** | 1.0–2.0 |
| Occupation | |||||
| Not forest related | 128/ 515 (24.9) | Ref | |||
| Forest related | 76/ 308 (24.7) | 1.0 | .7–1.4 | ||
| Malaria in the past year | |||||
| No | 90/ 395 (22.8) | Ref | |||
| Yes | 111/ 413 (26.9) | 1.3 | .9–1.9 | ||
| Sleep under a LLIN the previous night | |||||
| Yes | 154/ 640 (24.1) | Ref | |||
| No | 48/ 176 (27.3) | 1.2 | .8–1.9 | ||
| 1 LLIN for 2 people | |||||
| Yes | 89/ 390 (22.8) | Ref | |||
| No | 115/ 433 (26.6) | 1.3 | .9–1.9 | ||
| Indoor residual spray in past year | |||||
| Yes | 154/ 484 (31.8) | Ref | |||
| No | 49/ 336 (14.6) | 0.9 | .5–1.5 | ||
| Number of external walls in house | |||||
| Complete, 4 | 52/ 288 (18.1) | Ref | |||
| None/incomplete, 0–3 | 152/ 535 (28.4) | 1.6* | 1.1–2.5 | 1.7* | 1.1–2.6 |
| Ceiling material | |||||
| Tin, calamina | 63/ 283 (22.3) | Ref | |||
| Palm leaves | 141/ 540 (26.1) | 1.0 | .6–1.6 | ||
| Electricity available | |||||
| Yes | 74/ 345 (21.4) | Ref | |||
| No | 130/ 478 (27.2) | 0.8 | .5–1.3 | ||
| Distance to Anopheles darlingi larval site | |||||
| ≥ 200 meters | 140/ 485 (28.9) | Ref | |||
| < 200 meters | 63/ 314 (20.1) | 0.8 | .5–1.2 |
Abbreviations: aOR, adjusted odds ratio; CI, confidence interval; n, number of malaria infected people; N, total number of people; OR, odds ratio; Ref, reference.
* P < .05, **P < .01