Table 3.
Association analysis of variables related to parasitic infection
| Schistosoma haematobium cases/screened (%) | Ascaris lumbricoides cases/screened (%) | Trichuris trichiura cases/screened (%) | Hookworm cases/screened (%) | Anemia cases/screened (%) | |
|---|---|---|---|---|---|
| Island | P=0.002* | P<0.001 | P<0.001 | P<0.001 | P<0.001 |
| Unguja | 87/653 (13.3) | 19/397 (4.8) | 39/397 (9.8) | 11/397 (2.8) | 162/479 (33.8) |
| Pemba | 27/379 (7.1) | 124/292 (42.5) | 246/291 (84.5) | 161/290 (55.5) | 106/223 (47.5) |
| Total | 114/1,032 (11.0) | 143/689 (20.8) | 285/688 (41.4) | 172/687 (25.0) | 268/702 (38.2) |
|
| |||||
| Sex | P<0.001 | P=0.916 | P=0.419 | P=0.777 | P=0.010 |
| Male | 69/412 (16.7) | 54/259 (20.8) | 102/259 (39.4) | 63/259 (24.3) | 124/282 (44.0) |
| Female | 44/619 (7.1) | 88/429 (20.5) | 182/428 (42.5) | 108/427 (25.3) | 144/420 (34.3) |
| Total | 113/1,031 (11.0) | 142/688 (20.6) | 284/687 (41.3) | 171/686 (24.9) | 268/702 (38.2) |
|
| |||||
| Anemia | P=0.620 | P=0.017 | P=0.051 | P=0.077 | - |
| Yes | 30/263 (11.4) | 45/195 (23.1) | 80/195 (41.0) | 52/194 (26.8) | - |
| No | 44/431 (10.2) | 45/306 (14.7) | 99/305 (32.5) | 61/305 (20.0) | - |
| Total | 74/694 (10.7) | 90/501 (18.0) | 179/500 (35.8) | 113/499 (22.6) | - |
|
| |||||
| Hematuria | P<0.001 | P=0.404 | P=0.110 | P=0.330 | P=0.040 |
| Yes | 90/149 (60.4) | 22/80 (27.5) | 45/80 (56.3) | 27/80 (33.8) | 46/93 (49.5) |
| No | 18/762 (2.4) | 113/487 (23.2) | 227/487 (46.6) | 138/486 (28.4) | 200/524 (38.2) |
| Total | 108/911 (11.9) | 135/567 (23.8) | 272/567 (48.0) | 165/566 (29.2) | 246/617 (39.9) |
|
| |||||
| Previous S. haematobium infection | P<0.001 | P=0.117 | P=0.210 | P=0.356 | - |
| Yes | 53/159 (33.3) | 12/88 (13.6) | 30/88 (34.1) | 18/88 (20.5) | - |
| No | 61/838 (7.3) | 121/582 (20.8) | 239/581 (41.1) | 145/580 (25.0) | - |
| Total | 114/996 (11.4) | 133/670 (19.9) | 269/669 (40.2) | 163/668 (24.4) | - |
|
| |||||
| Previous A. lumbricoides infection | P=0.231 | P<0.001 | P<0.001 | P<0.001 | - |
| Yes | 30/293 (10.2) | 92/238 (38.7) | 172/238 (72.3) | 103/237 (43.5) | - |
| No | 74/567 (13.1) | 26/355 (7.3) | 71/354 (20.1) | 41/354 (11.6) | - |
| Total | 104/860 (12.1) | 118/593 (19.9) | 243/592 (41.0) | 144/591 (24.4) | - |
|
| |||||
| Previous T. trichiura infection | P=0.498 | P<0.001 | P<0.001 | P<0.001 | - |
| Yes | 41/366 (11.2) | 95/277 (34.3) | 181/277 (65.3) | 110/276 (39.9) | - |
| No | 63/495 (12.7) | 23/314 (7.3) | 62/313 (19.8) | 34/313 (10.9) | - |
| Total | 104/861 (12.1) | 118/591 (20.0) | 243/590 (41.2) | 144/589 (24.4) | - |
|
| |||||
| Previous hookworm infection | P=0.170 | P<0.001 | P<0.001 | P<0.001 | - |
| Yes | 23/240 (9.5) | 71/191 (37.2) | 143/191 (74.9) | 98/190 (51.6) | - |
| No | 81/624 (13.0) | 49/403 (12.2) | 102/402 (25.4) | 47/402 (11.7) | - |
| Total | 104/864 (12.0) | 120/594 (20.2) | 245/593 (41.3) | 145/592 (24.5) | - |
*
P-values were calculated using chi-square or Fisher exact tests.