Year of study | Number tested | Number with positive tuberculin skin test | Prevalence of positives (95% C.I) |
---|---|---|---|
1 | 41 | 15 | 36.6 (21.2-52.0) |
2 | 56 | 22 | 39.3 (26.1-52.5) |
3 | 44 | 21 | 47.7 (32.4-63.1) |
4 | 73 | 37 | 50.7 (38.9-62.4) |
5 | 18 | 9 | 50.0 (24.4-75.6) |
Total | 232 | 104 | 44.8 (38.4-51.3) |