Table 1.
Prevalence and intensity of infection for schistosomiasis and soil-transmitted helminths among children 5–19 years old in Mbita and nearby islands, western Kenya1
| Species infection | Overall prevalence, (%)2 |
Intensity threshold prevalence, (%) |
Intensity (epg)3 | ||
|---|---|---|---|---|---|
| Light | Moderate | Heavy | |||
| One or more helminth |
65.6 (64.2-67.1) |
|
|
|
|
| S. mansoni |
60.5 (59.0-62.0) |
49.0 |
35.8 |
15.2 |
215.8 ± 343.5 |
| One or more soil-transmitted helminth |
12.4 (11.4-13.4) |
|
|
|
|
| Hookworm |
8.4 (7.6-9.3) |
100 |
0.0 |
0.0 |
47.7 ± 87.9 |
| A. lumbricoides |
3.3 (2.7-3.8) |
80.3 |
19.7 |
0.0 |
2580.5 ± 4283.2 |
| T. trichiura | 1.6 (1.2-2.0) | 100 | 0.0 | 0.0 | 30.1 ± 43.9 |
1 Sample size: 5–7 years-110, 8–10 years-406, 11–13 years-2129, 14–16 years-1328, 17–19 years-29, unknown age-62.
2 Values in parenthesis indicate 95% confidence intervals.
3 Intensity of infection expressed as arithmetic mean ± SD.