|
Age group (years)
|
No. of individuals examined
|
No. of individuals infected (%)a
|
Intensity of S. haematobium infection
|
|---|
|
Arithmetic mean intensity (eggs/10 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)
|
- aFor sexes combined, there was a significant difference in prevalence between age groups (P < 0.001) with the following sequence: 9–12 > 5–8 > 20–55 years (χ2 test). Within every age group, males had higher prevalence of infection than females in 5–8, 9–12 and 20–55 years (P < 0.001, P < 0.001, P < 0.01, respectively)
- bFor sexes combined, there was no difference between the two groups of children (age group 5–8 and 9–12 years), but intensity of infection among children was significantly higher (P < 0.001) than adults (one-way ANOVA). There was no difference between genders among school children, but male adults had higher intensities than females (P < 0.02)
- cEligibility results: prevalence of haematuria by dipstick from a single urine sample from children aged 13–14 years
- dTotal only includes the microscopic urine filtration data from the cross-sectional analysis, and excludes eligibility data that was collected in 13–14 year-olds using reagent strips only
