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Table 3 Weighted prevalence of microfilaridermia, nodules and cutaneous signs presence in each surveyed community

From: Important progress towards elimination of onchocerciasis in the West Region of Cameroon

  Parasitological examination Clinical examination
Health district Community N mf + (n) Weighted mf prevalence (%)a Geometric mean of mf in carriers (mf/ss ± SD Nod + (n) Weighted nodule prevalence (%)a Geometric mean of nodule in carriers ± SD cut + (n) Weighted cut prevalence (%)a
Bafang Bandoumven 125 1 0.3 22.0 ± (-)b 0 0 7 1.7
Bankambe 203 9 2.6 1.3 ± 2.9 11 2.9 1.3 ± 1.4 0 0
Bandja Baving 136 3 1.8 1.7 ± 1.3 0 0 25 9.1
Bandjoun Lemgo 75 0 0.0 3 1.1 1.0 ± 1.0 0 0
Se Dembom 173 17 9.8 5.2 ± 4.2 1 0.2 1.0 ± (-)b 1 0.5
Tsesse 123 0 0.0 1 0.4 1.0 ± (-)b 0 0
Bangangté Batchingou 139 6 3.7 2.9 ± 2.7 10 2.7 1.3 ± 1.8 2 0.6
Ndionzou 141 0 0.0 0 0 43 13.3
Foumbot Kouffen 107 0 0.0 5 2.5 1.9 ± 1.8 0 0
Maka 207 6 2.2 0.9 ± 2.1 2 0.9 1.0 ± 1.0 0 0
Mogni 96 12 12.0 4.0 ± 3.3 6 3.9 1.4 ± 1.8 0 0
Kékem Bayon 231 6 2.3 2.3 ± 2.8 3 0.5 1.0 ± 1.0 0 0
Massangam Makouopsap 123 53 41.6 3.7 ± 5.4 26 14.4 1.3 ± 1.4 2 1.1
Makpantoum 114 5 4.7 1.3 ± 1.9 3 2.4 1.0 ± 1.0 0 0
Mayakoue 65 7 9.8 5.3 ± 3.9 2 2.6 1.4 ± 1.6 0 0
Total   2058 125 5.5 3.2 ± 4.3 73 2.1 1.3 ± 1.5 80 24.5
  1. 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
  2. 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
  3. bStandard deviation not calculated as the number of observations is 1