Risk factors Schistosoma mansoni number (%)OR (95% CI)
valuePositive Negative Total COR AOR Sex Male 119 (90.2) 13 (9.8) 132 (34.3) 0.95 (0.45, 2.02) 0.86 (0.41, 1.80) 0.69 Female 227 (89.7) 26 (10.3) 253 (65.7) 100 100 Age (years) 6–10 66 (90.4) 7 (9.6) 73 (19.0) 0.93 (0.36, 2.32) 0.63 (0.18, 2.20) 0.47 11–15 280 (89.7) 32 (10.3) 312 (81.0) 100 100 Resident Rural 86 (88.7) 11 (11.3) 97 (25.2) 100 100 0.53 Urban 260 (90.3) 28 (9.7) 288 (74.8) 0.84 (0.38, 1.89) 0.78 (0.37, 1.66) Grade One–four 118 (92.2) 10 (7.8) 128 (33.2) 0.67 (0.29, 1.49) 2.02 (0.67, 6.10) 0.22 Five–eight 228 (88.7) 29 (11.3) 257 (66.8) 100 100 Mothers/guardian edu. status Illiterate 131 (91.0) 13 (9.0) 144 (37.4) 0.50 (0.20, 1.26) 0.43 (0.13, 1.21) 0.36 Read and write/1ry 154 (91.7) 14 (8.3) 168 (43.6) 0.46 (0.19, 1.14) 0.37 (0.11, 1.09) 2ry school and above 61 (83.6) 12 (16.4) 73 (19.0) 100 100 Swimming in river Yes 106 (79.7) 27 (20.3) 133 (34.5) 5.09 (2.37, 11.1) 5.12 (3.47, 17.89)• 0.01 No 240 (95.2) 12 (4.8) 252 (65.5) 100 100 Swimming frequency/wk 0 70 (79.5) 18 (20.5) 88 (22.9) 1.00 1.00 0.00 1-2 170 (90.9) 17 (9.1) 187 (48.6) 2.57 (1.18, 5.60) 1.82 (0.79, 4.23) ≥3 106 (96.4) 4 (3.6) 110 (28.5) 6.81 (2.05, 24.95) 4.83 (1.37, 18.81)• Washing clothes in river Yes 101 (79.5) 26 (20.5) 127 (33.0) 4.85 (2.28, 10.43) 5.54 (2.89, 13.76)• 0.00 No 245 (95.0) 13 (5.0) 258 (67.0) 100 100 Washing utensil in river Yes 68 (78.2) 19 (21.8) 87 (22.6) 3.88 (1.86, 8.09) 4.91 (2.43, 12.37)• 0.00 No 278 (93.3) 20 (6.7) 298 (77.4) 100 100 Crossing river with bare foot Yes 75 (77.3) 22 (22.7) 97 (25.2) 4.62 (2.25, 9.77) 3.95 (2.13, 7.61)• 0.00 No 271 (94.1) 17 (5.9) 288 (74.8) 100 100 Fishing in the river Yes 110 (82.1) 24 (17.9) 134 (34.8) 3.20 (1.56, 6.62) 3.04 (2.14, 8.71)• 0.00 No 235 (93.6) 16 (6.4) 251 (65.2) 100 100 Total 346 (89.9) 39 (10.1) 385 (100)
