Table I.
Demographic characteristics of the study subjects from Guangdong, China, analyzed in the current studya
| Demographic characteristics | Control (n = 23) | Exposed (n = 29) | P-value |
|---|---|---|---|
| Age, mean (SD) | 30.0 (5.3) | 30.6 (5.1) | 0.70 |
| BMIb, mean (SD) | 22.5 (2.5) | 21.3 (2.3) | 0.09 |
| Sex, n (%) | 0.84 | ||
| Female | 2 (8.7) | 3 (10.3) | |
| Male | 21 (91.3) | 26 (89.7) | |
| Current smoking, n (%) | 0.83 | ||
| No | 12 (52.2) | 16 (55.2) | |
| Yes | 11 (47.8) | 13 (44.8) | |
| Current alcohol use, n (%) | 0.24 | ||
| No | 14 (60.9) | 22 (75.9) | |
| Yes | 9 (39.1) | 7 (24.1) | |
| Recent infection, n (%) | 0.81 | ||
| No | 15 (65.2) | 18 (62.1) | |
| Yes | 8 (34.8) | 11 (37.9) | |
| Current medicine use, n (%) | 0.63 | ||
| No | 15 (65.2) | 17 (58.6) | |
| Yes | 8 (34.8) | 12 (41.4) | |
| FA air level (p.p.m.), median (10th, 90th percentile) | 0.026 (0.015, 0.026) | 1.38 (0.78, 2.61) |
aThese subjects are a subset of the 94 subjects in the previously described cross-sectional study of occupational FA exposure in factories in Guangdong, China (16).
bBMI, body mass index.