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Table 5 Circulating filarial antigen (CFA) prevalence in the study communities

From: Lymphatic filariasis control in Tanzania: effect of six rounds of mass drug administration with ivermectin and albendazole on infection and transmission

Study population Time (number) of survey Survey population No. examined (%) No. positive (%) p-value for difference in prevalence
Kirare Nov-10 (7) 690 400 (58.0) 101 (25.3) 0.044*
  Nov-11 (8) 690 393 (57.0) 77 (19.6)  
Kiomoni Nov-10 (7) 504 386 (76.6) 74 (19.2) 0.041*
  Nov-11 (8) 504 312 (61.9) 52 (16.7)  
Kisimatui Nov-10 (7) 651 389 (59.8) 110 (28.3) 0.001*
  Nov-11 (8) 651 367 (56.4) 84 (22.9)  
All 3 communities combined Nov-10 (7) 1845 1175 (63.7) 285 (24.3) < 0.001#
  Nov-11 (8) 1845 1072 (58.1) 213 (19.9)  
  1. Results shown are from two hamlets of Kirare (Mtambuuni, Mashine), one hamlet of Kiomoni (Mabavu) and one hamlet of Kisimatui (Majengo) in survey 7 and 8. Results from all four hamlets of Kirare in survey 1-5 are given in [6] and in Figure 3.
  2. * McNemar’s chi-square test for paired samples (n = 318, 289, 297 and 904 for Kirare, Kiomoni, Kisimatui and all three villages combined, respectively).
  3. # Pearsons chi-square test.