Table 1.
Wuchereria bancrofti prevalence and intensity of infection in Misay and Mbumkimi
| Age (years) | Total | Males | Females | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | FTS-positive (%) | mf-positive (%) | W. bancrofti mf count per 70 μl | n | FTS-positive (%) | mf-positive (%) | W. bancrofti mf count per 70 μl | n | FTS-positive (%) | mf-positive (%) | W. bancrofti mf count per 70 μl | ||||
| GM | Median (range) | GM | Median (range) | GM | Median (range) | ||||||||||
| 5–10 | 227 | 8.4 | 1.8 | 20.1 | 25.5 (3–120) | 116 | 6.9 | 1.7 | 21.3 | 25.5 (11.5–39.5) | 111 | 9.9 | 1.8 | 19.0 | 61.5 (3–120) |
| 11–15 | 119 | 28.6 | 10.9 | 25.8 | 30.5 (0.5–162.5) | 67 | 12.4 | 10.5 | 18.6 | 22 (2.5–162.5) | 52 | 28.9 | 11.5 | 37.9 | 82 (0.5–139.5) |
| 16–20 | 73 | 27.4 | 8.2 | 3.4 | 5.3 (0.5–16.5) | 32 | 37.5 | 12.5 | 5.8 | 8.3 (1–16.5) | 41 | 19.5 | 4.9 | 1.2 | 1.8 (0.5–3) |
| 21–30 | 136 | 38.2 | 14.7 | 9.2 | 17.3 (0.5–74) | 54 | 44.4 | 24.1 | 8.3 | 14.5 (1–74) | 82 | 34.2 | 8.5 | 11.3 | 20 (0.5–58) |
| 31–40 | 112 | 47.3 | 16.1 | 13.9 | 11.8 (1.5–239.5) | 49 | 61.2 | 26.5 | 13.7 | 14 (1.5–239.5) | 63 | 36.5 | 7.9 | 14.4 | 10.5 (5.5–87.5) |
| 41–50 | 76 | 57.9 | 25.0 | 9.1 | 12 (0.5–359.5) | 30 | 66.7 | 33.3 | 6.2 | 3.8 (0.5–359.5) | 46 | 52.2 | 19.6 | 13.9 | 19.5 (1.5–45) |
| > 50 | 77 | 48.1 | 22.1 | 14.5 | 21 (0.5–93) | 35 | 51.4 | 17.1 | 18.7 | 26.8 (2–69.5) | 42 | 45.2 | 26.2 | 12.6 | 12.5 (0.5–93) |
| Total | 820 | 31.6 | 11.8 | 12.0 | 14 (0.5–359.5) | 383 | 34.2 | 14.4 | 10.8 | 14 (0.5–359.5) | 437 | 29.3 | 9.6 | 13.7 | 16.3 (0.5–139.5) |
Abbreviations: n, number of subjects; FTS-positive, individuals with positive filarial test strip result; mf-positive, individuals with microfilaraemia; mf, microfilarial; GM, geometric mean microfilaraemia in microfilaremic individuals