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Table 1 Results of filariasis survey on Satawal Island, January 2003 (n = 253)

From: Identification and control of an isolated, but intense focus of lymphatic filariasis on Satawal Island, Federated States of Micronesia, in 2003

Gender Age group Prevalence Mf density Mf count
ICT Knotts Geometric meana Rangea
% (n) % (n) Mf/mL Mf/mL
Males ≤15 years old (n = 16) 56 (9) 31 (5) 21 5–86
16–20 years old (n = 10) 40 (4) 30 (3) 16 6–26
21–25 years old (n = 12) 75 (9) 66 (8) 24 7–204
>25 years old (n = 66) 50 (33) 33 (22) 51 10–866
Total all ages (n = 104) 53 (55) 37 (38) 36 5–866
Females ≤15 years old (n = 14) 50 (7) 36 (5) 26 7–620
16–20 years old (n = 20) 50 (10) 25 (5) 4 2–11
21–25 years old (n = 19) 11 (2) 0 (0) 0 n/a
>25 years old (n = 96) 23 (22) 7 (7) 13 4–204
Total all ages (n = 149) 28 (41) 11 (17) 11 2–620
Combined (male + female) ≤15 years old (n = 30) 53 (16) 33 (10) 23 5–620
16–20 years old (n = 30) 47 (14) 27 (8) 7 2–26
21–25 years old (n = 31) 35 (11) 29 (26) 24 7–204
>25 years old (n = 162) 34 (55) 18 (29) 37 4–866
Total all ages (n = 253) 38 (96) 22 (55) 25 2–866
  1. ICT antigen test, Knotts Knott’s concentration technique, Mf microfilaria, n number examined, n/a not applicable
  2. aMf pos cases only, as determined by Knott’s concentration technique