| Duration of stay (months) | No. (%) screened | No. (%) AFB positive |
| < 6 | 19 (36.54) | 1 (5.26) |
| 7 - 12 | 5 (9.62) | 2 (40) |
| 13 - 18 | 5 (9.62) | 2 (40) |
| 19 - 24 | 3 (5.77) | 0 (0) |
| 25 - 30 | 0 (0) | 0 (0) |
| 31 - 36 | 2 (3.85) | 1 (50) |
| 37 - 42 | 3 (5.77) | 1 (33.33) |
| 43 - 48 | 5 (9.62) | 2 (40) |
| >48 | 10 (19.23) | 2 (20) |
| Total | 52 (100) | 11 (21.15) |