Table 4.
Baseline clinical characteristics of prior exposure to ectoparasites, use of mosquito nets and indoor residual spraying in dwellings of Uganda AFI study participants, April 2011 to January 2013
| Exposure | Total (%) N = 1281 |
Western Region (St. Paul’s HC IV) N = 450 |
Central Region (Ndejje HC IV) N = 382 |
Northern Region (Adumi HC IV) N = 449 |
p-value |
|---|---|---|---|---|---|
| Lice | |||||
| No | 1226 (95.7) | 409 (33.4) | 382 (31.1) | 435 (35.5) | p < 0.001 |
| Yes | 55 (4.3) | 41 (74.5) | 0 | 14 (25.5) | |
| Fleas | |||||
| No | 1133 (88.4) | 429 (37.9) | 375 (33.1) | 329 (29.0) | p < 0.001 |
| Yes | 148 (11.6) | 21 (14.2) | 7 (4.7) | 120 (81.1) | |
| Ticks | |||||
| No | 1061 (82.8) | 350 (33.0) | 379 (35.7) | 332 (31.3) | p < 0.001 |
| Yes | 220 (17.2) | 100 (45.5) | 3 (1.4) | 117 (53.1) | |
| Mosquitoes | |||||
| No | 108 (8.4) | 5 (4.6) | 98 (90.8) | 5 (4.6) | p < 0.001 |
| Yes | 1173 (91.6) | 445 (37.9) | 284 (24.2) | 444 (37.9) | |
| Ectoparasite seen in the last one montha | |||||
| No | 98 (7.7) | 3 (3.1) | 93 (94.9) | 2 (2.0) | p < 0.001 |
| Yes | 1182 (92.3) | 447 (37.8) | 288 (24.4) | 447 (37.8) | |
| Slept in a mosquito net last nighta | |||||
| No | 412 (32.2) | 118 (28.6) | 146 (35.4) | 148 (36.0) | p < 0.001 |
| Yes | 705 (55.0) | 284 (40.3) | 197 (27.9) | 224 (31.8) | |
| Interior walls of the dwelling sprayed against mosquitoesa | |||||
| No | 1104 (86.2) | 392 (35.5) | 327 (29.6) | 385 (34.9) | p = 0.001 |
| Yes | 25 (2) | 10 (40.0) | 15 (60.0) | 0 (0) | |
amissing values N = Total number
Increased use of IRS was weakly correlated with decreased malaria cases (rho = -0.10, p = 0.04); mosquito net use was not correlated with a decrease in malaria cases (rho = -0.01, p = 0.10)