Table 1 Prevalence and intensity of S mansoni and hookworm in children aged 9-14 years before and 6 months after praziquantel and mebendazole administration by district and by sex
| Â | Pre-MDA | Post-MDA | Reduction (%) | |||||
|---|---|---|---|---|---|---|---|---|
| Â | No of children examined | S.mansoni | Hookworm | No of Children examined | S.mansoni | Hookworm | S.mansoni | Hookworm |
Prevalence (%) | ||||||||
Overall | 515 | 69.0 (64.7-73.2) | 41.7 (37.3-46.4) | 448 | 38.2 (33.8-42.8) | 14.5 (11.6-18.1) | 44.6 | 65.2 |
By district | Â | Â | Â | Â | Â | Â | Â | Â |
   Bo | 60 | 33.3 (22.7-45.9) | 48.3 (36.2-60.7) | 60 | 21.7 (13.1-33.6) | 26.7 (17.1-39.0) | 34.8 | 44.7 |
   Kailahun | 60 | 56.7 (44.1-68.4) | 21.7 (13.1-33.6) | 60 | 25.0 (15.8-37.2) | 11.7 (5.8-22.2) | 55.9 | 46.1 |
   Kenema | 38 | 73.7 (55.6-85.8) | 50.0 (15.8-37.2) | 29 | 41.4 (25.5-59.3) | 10.3 (3.6-26.4) | 43.8 | 79.4 |
   Koinadugu | 177 | 82.9 (75.7-88.9) | 47.3 (38.8-56.4) | 120 | 45.0 (36.4-53.9) | 12.5 (7.7-19.6) | 45.7 | 73.6 |
   Kono | 120 | 75.0 (66.6-81.9) | 32.5 (24.8-41.3) | 119 | 50.4 (41.8-59.3) | 10.9 (6.5-17.8) | 32.8 | 66.5 |
   Tonkolili | 60 | 75.0 (62.8-84.2) | 58.3 (45.7-69.9) | 60 | 28.3 (18.5-40.8) | 18.3 (10.6-29.9) | 62.3 | 68.6 |
By sex | Â | Â | Â | Â | Â | Â | Â | Â |
   Boys | 262 | 69.4 (63.2-75.0) | 50.8 (44.2-57.1) | 227 | 40.1 (33.9-46.6) | 19.4 (14.8-25.0) | 42.2 | 61.8 |
   Girls | 252 | 68.9 (62.7-74.8) | 32.5 (26.9-39.2) | 221 | 36.2 (30.2-42.7) | 9.5 (6.3-14.1) | 47.5 | 70.8 |
Intensity of infection (epg) | ||||||||
Overall | 515 | 170.8 (84.2-257.3) | 71.7 (44.1-99.3) | 448 | 47.3 (11.2-83.4) | 8.7 (3.5-14.0) | 72.3 | 87.9 |
By district | Â | Â | Â | Â | Â | Â | Â | Â |
   Bo | 60 | 36.0 (0-114.4) | 84.4 (31.8-137.0) | 60 | 6.4 (2.8-10.0) | 13.6 (4.7-22.5) | 82.2 | 83.9 |
   Kailahun | 60 | 53.6 (32.2-75.0) | 14.4 (0-32.2) | 60 | 22.1 (0-44.6) | 4.0 (2.2-5.8) | 58.8 | 72.2 |
   Kenema | 38 | 111.8 (61.4-162.2) | 79.6 (42.9-116.2) | 29 | 31.4 (6.1-56.8) | 4.1 (0-9.6) | 71.9 | 94.8 |
   Koinadugu | 177 | 172.5 (133.8-211.2) | 107.3 (9.9-204.7) | 120 | 55.8 (13.2-98.4) | 8.6 (0-22.0) | 67.7 | 92.0 |
   Kono | 120 | 326.6 (14.3-638.9) | 28.0 (21.1-34.9) | 119 | 86.9 (0-214.2) | 8.1 (0-17.9) | 73.4 | 71.1 |
   Tonkolili | 60 | 137.2 (0.8-273.6) | 128.4 (116.8-140.0) | 60 | 25.6 (0-55.9) | 12.4 (0-31.1) | 81.3 | 90.3 |
By sex | Â | Â | Â | Â | Â | Â | Â | Â |
   Boys | 262 | 165.4 (90.9-239.9) | 89.5 (45.1-133.9) | 227 | 57.1 (4.8-109.4) | 14.1 (3.9-24.3) | 65.5 | 84.2 |
   Girls | 252 | 177.2 (73.7-280.6) | 53.5 (32.6-74.5) | 221 | 37.2 (15.8-58.7) | 3.3 (1.4-5.2) | 79.0 | 93.8 |