Table 2.
Univariate analysis of risk factors for Wuchereria bancrofti antigenaemia
| Total (n = 820) |
Negative FTS (%) | Positive FTS (%) | P | Males | Negative FTS (%) | Positive FTS (%) | P | Females | Negative FTS (%) | Positive FTS (%) | P | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Village | ||||||||||||
| Mbumkimi | 543 | 359 (66.1) | 184 (33.9) | 0.047 | 259 | 161 (62.2) | 98 (37.8) | 0.030 | 284 | 198 (69.7) | 86 (30.3) | 0.535 |
| Misay | 277 | 202 (72.9) | 75 (27.1) | 124 | 91 (73.4) | 33 (26.6) | 153 | 111 (72.6) | 42 (27.4) | |||
| Bednets | ||||||||||||
| No | 319 | 211 (66.1) | 108 (33.9) | 0.264 | 163 | 104 (63.8) | 59 (36.2) | 156 | 107 (68.6) | 49 (31.4) | 0.468 | |
| Yes | 501 | 350 (69.9) | 151 (30.1) | 220 | 148 (67.3) | 72 (32.7) | 0.479 | 281 | 202 (71.9) | 79 (28.1) | ||
| Latrines | ||||||||||||
| No | 150 | 103 (68.7) | 47 (31.3) | 0.941 | 63 | 39 (61.9) | 24 (38.1) | 0.476 | 87 | 64 (73.6) | 23 (26.4) | 0.513 |
| Yes | 670 | 458 (68.4) | 212 (31.6) | 320 | 213 (66.6) | 107 (33.4) | 350 | 245 (70.0) | 105 (30.0) | |||
| Fishing | ||||||||||||
| No | 375 | 295 (78.7) | 80 (21.3) | <0.001 | 207 | 151 (73.0) | 56 (27.0) | 0.001 | 168 | 144 (85.7) | 24 (14.3) | 0.001 |
| Yes | 445 | 266 (59.8) | 179 (40.2) | 176 | 101 (57.4) | 75 (42.6) | 269 | 165 (61.3) | 104 (38.7) | |||
| Hunting | ||||||||||||
| No | 817 | 561 (68.7) | 256 (31.3) | – | 380 | 252 (66.3) | 128 (33.7) | – | 437 | 309 (70.7) | 128 (29.3) | – |
| Yes | 3 | 0 | 3 (100) | 3 | 0 | 3 (100) | 0 | 0 | 0 | |||
| Occasional overnight stay in the bush | ||||||||||||
| No | 656 | 483 (73.6) | 173 (26.4) | <0.001 | 294 | 217 (73.8) | 77 (26.2) | <0.001 | 362 | 266 (73.5) | 96 (26.5) | 0.005 |
| Yes | 164 | 78 (47.6) | 86 (52.4) | 89 | 35 (39.3) | 54 (60.7) | 75 | 43 (57.3) | 32 (42.7) | |||
| Agricultural activity | ||||||||||||
| No | 249 | 216 (86.8) | 33 (13.2) | <0.001 | 146 | 126 (86.3) | 20 (13.7) | <0.001 | 103 | 90 (87.4) | 13 (12.6) | <0.001 |
| Yes, fields same side | 131 | 92 (70.2) | 39 (29.8) | 48 | 33 (68.8) | 15 (31.2) | 83 | 59 (71.1) | 24 (28.9) | |||
| Yes, fields other side | 440 | 253 (54.5) | 187 (42.5) | 189 | 93 (49.2) | 96 (50.8) | 251 | 160 (63.8) | 91 (36.2) | |||
| Previous anthelmintic treatment | ||||||||||||
| No | 557 | 362 (65.0) | 195 (35.0) | 0.003 | 251 | 158 (63.0) | 93 (37.0) | 0.224 | 306 | 204 (66.7) | 102 (33.3) | 0.001 |
| Yes | 223 | 173 (77.6) | 50 (22.4) | 122 | 89 (70.5) | 36 (29.5) | 101 | 87 (86.1) | 14 (13.9) | |||
| na | 40 | 26 (65.0) | 14 (35.0) | 10 | 8 (80.0) | 2 (20.0) | 30 | 18 (60.0) | 12 (40.0) | |||
| Population density around the household | ||||||||||||
| Low | 186 | 129 (69.3) | 57 (30.7) | 0.421 | 84 | 56 (66.7) | 28 (33.3) | 0.991 | 102 | 73 (71.6) | 29 (28.4) | 0.254 |
| Intermediate | 262 | 188 (72.8) | 74 (28.2) | 119 | 79 (66.4) | 40 (33.6) | 143 | 109 (76.2) | 34 (23.8) | |||
| High | 312 | 205 (65.7) | 107 (34.3) | 152 | 99 (65.1) | 53 (34.9) | 160 | 106 (66.2) | 54 (33.8) | |||
| na | 60 | 39 (65.0) | 21 (35.0) | 28 | 18 (64.3) | 10 (35.7) | 32 | 21 (65.6) | 11 (34.4) | |||
| Distance to Nsitim River | ||||||||||||
| > 400 m | 472 | 340 (72.0) | 132 (28.0) | 0.034 | 223 | 158 (70.9) | 65 (29.1) | 0.026 | 249 | 182 (73.1) | 67 (26.9) | 0.159 |
| 300–400 m | 243 | 155 (63.8) | 88 (36.2) | 114 | 64 (56.1) | 50 (43.9) | 129 | 91 (70.5) | 38 (29.5) | |||
| 0–300 m | 45 | 27 (60.0) | 18 (40.0) | 18 | 12 (66.7) | 6 (33.3) | 15 (55.6) | 12 (44.4) | ||||
| Distance to Kwilu River | ||||||||||||
| > 400 m | 98 | 64 (65.3) | 34 (34.7) | 0.001 | 46 | 26 (56.5) | 20 (43.5) | 0.010 | 52 | 38 (73.1) | 14 (26.9) | 0.048 |
| 300–400 m | 232 | 181 (78.0) | 51 (22.0) | 109 | 84 (77.1) | 25 (22.9) | 123 | 97 (78.9) | 26 (21.1) | |||
| 0–300 m | 430 | 277 (64.4) | 153 (35.6) | 200 | 124 (62.0) | 76 (38.0) | 230 | 153 (66.5) | 77 (33.5) | |||
Abbreviations: Negative and Positive FTS, individuals with negative and positive filarial test strip results, respectively; na, not available