Table 1.
Demographic characteristics by trichloroethylene (TCE) exposure level of study subjects from Guangdong, China.
| Controls (n = 96) | TCE-exposed workers |
|||
|---|---|---|---|---|
| All (n = 80) | <12 ppm (n = 39) | ≥12 ppm (n = 41) | ||
| Age, mean (SD) | 27 (7) | 25 (7) | 24 (5) | 27 (8) |
| BMI, mean (SD) | 22 (3) | 21 (3) | 21 (2) | 22 (3) |
| SEX | ||||
| Female n (%) | 23 (24) | 23 (29) | 15 (38) | 8 (20) |
| Male n (%) | 73 (76) | 57 (71) | 24 (62) | 33 (80) |
| SMOKE | ||||
| No n (%) | 58 (60) | 46 (58) | 22 (56) | 24 (59) |
| Yes n (%) | 38 (40) | 34 (42) | 17 (44) | 17 (41) |
| INFECTION | ||||
| No n (%) | 75 (78) | 65 (81) | 31 (79) | 34 (83) |
| Yes n (%) | 21 (22) | 15 (19) | 8 (21) | 7 (17) |
| TCE EXPOSURE | ||||
| TCE air level (ppm)1 mean (SD) | <0.03 | 22.19 (35.94) | 5.19 (3.47) | 38.36 (44.61) |
1TCE air level is the arithmetic mean (±SD) of an average of two measurements per subject collected during the month before phlebotomy.