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 |
Each year, the new intake of Standard 1 pupils in the 10 schools (Kiomoni, Mafuriko, Marungu, Kirare, Mapojoni, Pongwe, Kigandini, Maweni, Ziwani and Kange) was examined for CFA with ICT cards.
* For examined.
# Pearsons chi-square test.