Table 2. The effects of sex, age, smoking, drinking and working duration on telomere length.
| Variables | Exposure | Control | Z* | P* | ||
|---|---|---|---|---|---|---|
| n | M (P25, P75) | n | M (P25, P75) | |||
| Gender | ||||||
| Male | 137 | 1.50 (1.10,2.57) | 54 | 0.93 (0.77,1.16) | 6.871 | < 0.001 |
| Female | 43 | 1.79 (1.11,2.90) | 61 | 1.08 (0.74,1.48) | 4.360 | < 0.001 |
| Z# | 0.787 | 1.569 | ||||
| P# | 0.431 | 0.117 | ||||
| Age | ||||||
| ≤ 40 | 53 | 1.50 (1.26,2.44) | 67 | 0.95 (0.77,1.32) | 5.356 | < 0.001 |
| > 40 | 127 | 1.54 (1.06,2.62) | 48 | 0.94 (0.73,1.34) | 5.568 | < 0.001 |
| Z# | -0.328 | −0.556 | ||||
| P# | 0.743 | 0.578 | ||||
| Smoking | ||||||
| Yes | 63 | 1.50 (1.08,2.48) | 12 | 1.20 (0.94,1.33) | 2.298 | 0.022 |
| No | 117 | 1.54 (1.13,2.66) | 103 | 0.94 (0.74,1.32) | 7.254 | < 0.001 |
| Z# | -0.321 | -1.409 | ||||
| P# | 0.748 | 0.159 | ||||
| Drinking | ||||||
| Yes | 16 | 1.50 (1.20,2.22) | 30 | 0.92 (0.76,1.28) | 3.759 | < 0.001 |
| No | 164 | 1.50 (1.10,2.61) | 85 | 0.95 (0.76,1.35) | 6.753 | < 0.001 |
| Z# | −0.065 | −0.293 | ||||
| P# | 0.948 | 0.770 | ||||
| Working duration | ||||||
| < 15 | 26 | 1.61 (1.23,2.70) | ||||
| 15∼30 | 117 | 1.54 (1.12,2.72) | ||||
| > 30 | 37 | 1.35 (0.99,2.20) | ||||
| χ2# | 2.251 | |||||
| P# | 0.324 | |||||
Note: P* indicates the comparison of telomere length between exposure group and control group after stratifying, P# represents the comparison among the layers after stratifying.