Table 2. The characters of 10% lead-sensitive group and 10% lead-resistant group.
| Characteristics | Group | P | |
|---|---|---|---|
| Lead resistant (n=113) n (%) | Lead sensitive (n=113) n (%) | ||
| Gender | 0.506 | ||
| Male | 52 (46.0) | 57 (50.4) | |
| Female | 61 (54.0) | 56 (49.6) | |
| Age (years) | 35.86 ± 10.26 | 38.39 ± 8.85 | 0.047* |
| BMI (kg/m2) | 23.7 ± 3.6 | 24.3 ± 4.8 | 0.289 |
| Smoking | 0.246 | ||
| No | 83 (73.4) | 75 (66.4) | |
| Yes | 30 (26.6) | 38 (33.6) | |
| Education | 0.412 | ||
| Literate and up to lower secondary level | 21 (18.6) | 26 (23.0) | |
| Low up to middle secondary level | 92 (81.4) | 87 (77.0) | |
| Drinking | 0.080 | ||
| No | 93 (82.3) | 82 (72.6) | |
| Yes | 20 (17.7) | 31 (27.4) | |
| Eat or drink in workplace | 0.847 | ||
| No | 31 (27.4) | 30 (26.6) | |
| Occasionally | 35 (31.0) | 39 (34.5) | |
| Yes | 47 (41.6) | 44 (38.9) | |
| BLL (μg/l)* | <0.001* | ||
| Mean ± S.D. | 89.34 ± 15.39 | 513.52 ± 63.86 | |
*
P-value of two-sided Student’s t test for age and BLL. Abbreviation: BMI, body mass index.