Table 2.
Weighted prevalence of microfilaridermia, nodules and cutaneous signs presence according to gender and age groups
| N | Parasitological examination | Clinical examination | |||||||
|---|---|---|---|---|---|---|---|---|---|
| mf + (n) | Weighted mf prevalence (%)a | Geometric mean of mf in carriers (mf/ss ± SD) | Nodule + (n) | Weighted nodule prevalence (%)a | Geometric mean of nodule in carriers ± SD | cut + (n) | Weighted cut prevalence (%)a | ||
| Sex | |||||||||
| Female | 1136 | 57 | 4.7 | 3.0 ± 4.9 | 29 | 1.7 | 1.3 ± 1.5 | 56 | 2.2 |
| Male | 922 | 68 | 6.5 | 3.5 ± 3.9 | 44 | 2.6 | 1.3 ± 1.5 | 24 | 1.1 |
| Total | 2058 | 125 | 5.5 | 3.2 ± 4.3 | 73 | 2.1 | 1.3 ± 1.5 | 80 | 1.7 |
| Age categories (years) | |||||||||
| 5–9 | 472 | 19 | 4.0 | 4.7 ± 4.7 | 8 | 1.7 | 1.2 ± 1.4 | 1 | 0.2 |
| 10–19 | 609 | 27 | 4.4 | 2.5 ± 4.8 | 1 | 0.2 | 1.0 ± (-)b | 0 | 0 |
| 20–29 | 156 | 16 | 10.1 | 6.9 ± 2.9 | 5 | 3.2 | 1.2 ± 1.4 | 1 | 0.7 |
| 30–39 | 173 | 13 | 7.5 | 1.5 ± 2.4 | 14 | 8.0 | 1.4 ± 1.6 | 6 | 3.4 |
| 40–49 | 180 | 21 | 11.6 | 3.6 ± 5.1 | 11 | 6.1 | 1.3 ± 1.5 | 13 | 7.2 |
| 50–59 | 147 | 12 | 8.3 | 1.4 ± 2.4 | 12 | 8.2 | 1.0 ± 1.0 | 16 | 10.8 |
| 60+ | 297 | 15 | 5.1 | 2.8 ± 4.4 | 20 | 6.6 | 1.4 ± 1.8 | 41 | 14.0 |
| Total | 2034 | 123 | 5.5 | 3.2 ± 4.3 | 71 | 2.1 | 1.3 ± 1.5 | 78 | 1.7 |
Abbreviations: N number examined, Mf + (n) number with microfilaria positive skin snip, Nod + (n) number of nodule carriers, Cut + (n) number with cutaneous sign, SD standard deviation
aIn each gender category, the indices were adjusted on age; In each age category, the indices were adjusted on sex; in the total populations, indices were adjusted on sex and age
bStandard deviation not calculated as the number of observations is 1