Table 7 Circulating filarial antigen (CFA) prevalence in Standard 1 pupils from the 10 primary schools
Time (number) of survey | No. pupils registered | No. examined (% of registered) | No. girls/boys (ratio)* | Mean age in years (range)* | No. positive for CFA (% of examined) | p-value for change in CFA prevalence from previous year# |
|---|---|---|---|---|---|---|
Sep-04 (1) | 888 | 832 (93.7) | 399/433 (0.92) | 8.1 (6-14) | 210 (25.2) | - |
Sep-05 (2) | 892 | 691 (77.5) | 337/354 (0.95) | 7.5 (6-14) | 163 (23.6) | 0.50 |
Oct-06 (3) | 981 | 803 (81.9) | 406/397 (1.02) | 7.9 (6-12) | 187 (23.3) | 0.84 |
Oct-07 (4) | 953 | 806 (84.6) | 433/373 (1.16) | 7.7 (6-16) | 101 (12.5) | < 0.001 |
Oct-08 (5) | 971 | 848 (87.4) | 419/429 (0.98) | 7.6 (6-12) | 82 (9.7) | 0.064 |
Oct-09 (6) | 855 | 760 (88.9) | 386/374 (1.03) | 7.6 (6-12) | 49 (6.4) | 0.018 |
Nov-10 (7) | 966 | 831 (86.0) | 404/427 (0.95) | 7.5 (6-12) | 51 (6.1) | 0.80 |
Dec-11 (8) | 943 | 889 (94.3) | 421/468 (0.92) | 7.5 (6-11) | 50 (5.6) | 0.65 |