Demographic characteristics of the subjects
| Controls (n=96) | TCE-exposed workers | |||
| All (n=80) | <10 ppm (n=35) | ≥10 ppm (n=45) | ||
| Age, mean (SD) | 27 (7) | 25 (7) | 23 (5) | 27 (7) |
| BMI, mean (SD) | 22 (3) | 21 (3) | 21 (3) | 22(3) |
| Sex, n (%) | ||||
| Female | 23 (24) | 23 (29) | 13 (37) | 10 (22) |
| Male | 73 (76) | 57 (71) | 22 (63) | 35 (78) |
| Current smoking, n (%) | ||||
| No | 58 (60) | 46 (58) | 20 (57) | 26 (58) |
| Yes | 38 (40) | 34 (42) | 15 (43) | 19 (42) |
| Current alcohol use, n (%) | ||||
| No | 56 (58) | 54 (68) | 23 (66) | 31 (69) |
| Yes | 40 (42) | 26 (32) | 12 (44) | 14 (31) |
| Recent infection, n (%) | ||||
| No | 75 (78) | 65 (81) | 28 (80) | 37 (82) |
| Yes | 21 (22) | 15 (19) | 7 (20) | 8 (18) |
| TCE exposure | ||||
| TCE air level (ppm), mean (SD) | <0.03 | 22.19 (35.94) | 4.51 (2.98) | 35.93 (43.25) |
BMI, body mass index; TCE, trichloroethylene.