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Table 4 Circulating filarial antigens (CFA) and microfilaraemia as seen in the community study

From: Urban lymphatic filariasis in the metropolis of Dar es Salaam, Tanzania

Ward CFA Microfilaraemia
  No. testeda Mean age in years (range) Female:male ratio No. staying ≥ 5 years in the city (%) No. tests positive (%) No. tested No. positive (%) Community mf prevalencebin %
Mchikichini 287 29.7 (10–81) 0.6 252 (87.8) 20 (7.0) 15 2 (13.3) 0.9
Vingunguti 348 36.2 (10–92) 0.6 326 (93.7) 47 (13.5) 39 3 (7.7) 1.0
Ukonga 293 32.6 (10–88) 1.1 243 (82.9) 23 (7.8) 21 2 (9.5) 0.7
Chanika 284 34.2 (10–80) 1.4 205 (72.2) 25 (8.8) 24 1 (4.2) 0.4
Total 1212 33.3 (10–92) 0.8 1026 (84.7) 115 (9.5) 99 8 (8.1) 0.8
  1. Community members (≥ 10 years) were from four wards in Ilala District, Dar es Salaam. Only CFA positive individuals were tested for microfilaraemia.
  2. a) Excluding seven individuals with invalid tests (all from Ukonga).
  3. b) See Methods for calculation.