Characteristics | New TST positives HCWs (n = 27) | Previously defined as TST positive HCWs (n = 15) | TST negatives HCWs (n = 113) | Healthy Controls (n = 48) |
---|---|---|---|---|
Age (years, mean (range)) | 38.9 (22–65) | 38.9 (22–65) | 38.9 (22–65) | 41.4 (20–67) |
Sex (female/male) | 22/5 | 12/3 | 98/15 | 33/15 |
Migration | ||||
1. Born in a low-endemic area | 25 | 12 | 101 | 48 |
2. Worked in a high-endemic area > 6 months | 0 | 0 | 6 | |
3. Born in a high-endemic area | 2 | 2 | 6 | |
Exposure time (≤ 8 h/> 8 h) | 20/7 | 10/4 | 84/29 | |
Mantoux (mm) before exposure (median) | 8 | 6/13 | 5/4 | |
Mantoux (mm) after exposure (median) | 19 | 6/6 | ||
Vesiculous Mantoux after exposure | 8 |