Table 4.
Microfilaria and nodule status across age groups in the present survey of 2015
| District | Age categories (years) | Microfilaria status | Nodule status | |||||
|---|---|---|---|---|---|---|---|---|
| N | Mf+ (n) | Weighted prevalence (%)a | Weighted mean ± SD of mf in carriers | Nod+ (n) | Weighted prevalence (%)a | Weighted mean ± SD of nodules in carriers | ||
| Bafia | 5–9 | 56 | 19 | 34.0 | 20.5 ± 27.7 | 9 | 16.1 | 1.7 ± 0.7 |
| 10–19 | 94 | 47 | 50.0 | 24.9 ± 47.6 | 9 | 9.6 | 2.2 ± 1.4 | |
| 20–29 | 76 | 32 | 41.5 | 10.9 ± 22.4 | 12 | 14.9 | 2.1 ± 1.1 | |
| 30–39 | 70 | 28 | 40.0 | 13.8 ± 24.0 | 23 | 32.5 | 2.6 ± 2.1 | |
| 40–49 | 69 | 24 | 34.7 | 13.5 ± 24.6 | 21 | 30.4 | 2.6 ± 2.3 | |
| 50–59 | 70 | 26 | 37.2 | 6.6 ± 9.3 | 17 | 24.5 | 2.8 ± 2.0 | |
| 60+ | 79 | 20 | 25.4 | 7.6 ± 12.5 | 24 | 30.0 | 2.5 ± 2.6 | |
| Total | 514 | 196 | 41.6 | 17.9 ± 35.5 | 115 | 18.1 | 2.4 ± 1.8 | |
| Yabassi | 5–9 | 0 | – | – | – | – | – | – |
| 10–19 | 14 | 7 | 50.0 | 21.4 ± 21.3 | 0 | 0 | 0 | |
| 20–29 | 35 | 13 | 36.6 | 16.5 ± 29.3 | 0 | 0 | 0 | |
| 30–39 | 47 | 23 | 48.9 | 16.1 ± 26.5 | 1 | 2.1 | 1 | |
| 40–49 | 48 | 17 | 35.4 | 5.1 ± 6.9 | 3 | 6.3 | 1.7 ± 0.6 | |
| 50–59 | 51 | 28 | 54.9 | 11.2 ± 19.4 | 4 | 8.0 | 2 ± 0.8 | |
| 60+ | 47 | 21 | 44.7 | 7.3 ± 12.5 | 2 | 4.1 | 2.5 ± 0.7 | |
| Total | 242 | 109 | 43.8 | 14.2 ± 22.6 | 10 | 2.7 | 1.8 ± 0.7 | |
Abbreviations: N number examined, mf microfilaria, Mf+ (n) number with microfilaria positive skin snip, Nod+ (n) number of nodule carriers, SD standard deviation
aIn each age category, the indices were adjusted on sex; in the total populations, indices were adjusted on sex and age