| Cases (Pf-pos) N = 50 | Controls (Pf-neg) N = 175 |
---|---|---|
Males | 21 (42%) | 87 (50%) |
Age, years | 19 (11–31) | 24 (11–35) |
Age category, years | Â | Â |
 0–10 | 9 (18%) | 38 (21%) |
 11–20 | 20 (40%) | 29 (17%) |
 21–30 | 7 (14%) | 41 (23%) |
 31–40 | 10 (20%) | 37 (21%) |
 41+ | 4 (8%) | 30 (17%) |
Township | Â | Â |
 Ann | 20 (40%) | 73 (42%) |
  Males | 10 (50%) | 47 (64%) |
  Age, years | 23.5 (12.8–32.3) | 30 (15–36) |
 Injangyang | 30 (60%) | 102 (58%) |
  Males | 11 (37%) | 40 (39%) |
  Age, years | 14.5 (9.5–25) | 22 (8–34.5) |