Age group (years) | No. of individuals examined | No. of individuals infected (%)a | Intensity of S. haematobium infection | |
---|---|---|---|---|
Arithmetic mean intensity (eggs/10Â ml)b | No. of heavily infected individuals (%) | |||
Both sexes | ||||
 5–8 | 7463 | 4709 (63.1) | 58.2 | 1440 (33.8) |
 9–12 | 7317 | 4873 (66.6) | 71.9 | 1633 (33.9) |
 13–14c | 5429 | 4010 (73.9) |  |  |
 20–55 | 4259 | 1910 (44.8) | 23.9 | 300 (15.8) |
 Totald | 19,039 | 11,492 (60.4) | 55.8 | 3373 (17.7) |
Females | ||||
 5–8 | 3196 | 1922 (60.1) | 44.7 | 517 (27.1) |
 9–12 | 3013 | 1890 (62.7) | 54.4 | 547 (29.0) |
 13–14c | 2276 | 1666 (73.2) |  |  |
 20–55 | 1329 | 560 (42.1) | 22.0 | 88 (15.9) |
 Totald | 7538 | 4372 (58.0) | 44.6 | 1152 (23.8) |
Males | ||||
 5–8 | 4261 | 2784 (65.3) | 68.1 | 923 (33.2) |
 9–12 | 4239 | 2946 (69.5) | 84.9 | 1086 (37.1) |
 13–14c | 3153 | 2344 (74.3) |  |  |
 20–55 | 2924 | 1349 (46.1) | 24.8 | 212 (15.8) |
 Totald | 11,424 | 7079 (62.0) | 63.12 | 2221 (26.7) |