S1.
Univariate analysis of gastric lesions associated factors
| Characteristics | Precursor lesions | Premalignant/malignant lesions | |||||
| OR | 95% CI | P | OR | 95% CI | P | ||
| Age (year) | <0.002 | <0.001 | |||||
| 41–50 vs. ≤40 | 2.10 | (1.13, 4.45) | 1.406 | (6.17E–15, NA) | |||
| 51–60 vs. ≤40 | 2.73 | (1.46, 5.85) | 5.286 | (2.33E–14, NA) | |||
| >60 vs. ≤40 | 3.45 | (1.53, 8.26) | 1.367 | (6.02E–14, NA) | |||
| Gender | <0.016 | 0.077 | |||||
| Female vs. male | 0.73 | (0.56, 0.95) | 0.42 | (0.12, 1.09) | |||
| Race | 0.218 | 0.156 | |||||
| Others vs. Han | 2.04 | (0.61, 5.06) | 6.55 | (0.36, 32.06) | |||
| Married | 0.624 | 0.475 | |||||
| Others vs. married | 1.30 | (0.39, 3.17) | 2.49–6 | (NA, 2.61) | |||
| Education | 0.393 | 0.536 | |||||
| High school vs. college | 1.10 | (0.74, 1.69) | 0.63 | (0.16, 2.97) | |||
| Middle school vs. college | 1.20 | (0.82, 1.83) | 1.06 | (0.34, 4.65) | |||
| Primary school vs. college | 1.54 | (0.90, 2.62) | 1.68 | (0.31, 9.01) | |||
| Occupation | 0.640 | 0.030 | |||||
| Peasant vs. worker | 1.19 | (0.42, 2.68) | 8.72 | (1.35, 32.5) | |||
| Officer vs. worker | 1.03 | (0.72, 1.43) | 1.36 | (0.31, 4.28) | |||
| Service vs. worker | 0.95 | (0.46, 1.72) | 3.45 | (0.53, 12.70) | |||
| Retired vs. worker | 1.28 | (0.87, 1.84) | 4.20 | (1.46, 1.09) | |||
| Others vs. worker | 0.46 | (0.08, 1.47) | 3.77–6 | (NA, 5.32E10) | |||
| Labor intensity | 0.750 | 0.006 | |||||
| Moderate vs. light | 1.03 | (0.80, 1.31) | 0.15 | (0.02, 0.53) | |||
| Heavy vs. light | 0.89 | (0.61, 1.26) | 0.79 | (0.23, 2.10) | |||
| Income (¥) | 0.018 | 0.390 | |||||
| 2,001–3,000 vs. ≤2,000 | 0.70 | (0.53, 0.94) | 0.42 | (0.14, 1.17) | |||
| 3,001–4,000 vs. ≤2,000 | 0.64 | (0.46, 0.88) | 0.51 | (0.15, 1.47) | |||
| >4,000 vs. ≤2,000 | 0.63 | (0.44, 0.90) | 0.62 | (0.19, 1.80) | |||
| Mining exposure | <0.527 | 0.445 | |||||
| Yes vs. No | 1.08 | (0.86, 1.35) | 0.73 | (0.32, 1.62) | |||
| Mining exposure time (hours/week) | <0.482 | 0.573 | |||||
| 1–40 vs. 0 | 1.11 | (0.74, 1.61) | 0.71 | (0.11, 2.52) | |||
| 41–60 vs. 0 | 1.18 | (0.90, 1.53) | 0.93 | (0.35, 2.21) | |||
| >60 vs. 0 | 0.88 | (0.58, 1.30) | 0.31 | (0.02, 1.51) | |||
| Dust exposure | 0.982 | 0.192 | |||||
| Yes vs. No | 1.00 | (0.79, 1.25) | 0.59 | (0.26, 1.30) | |||
| Gas exposure | 0.287 | 0.124 | |||||
| Yes vs. No | 0.88 | (0.70, 1.11) | 0.52 | (0.20, 1.19) | |||
| Smoking | <0.001 | 0.147 | |||||
| Occasionally vs. Yes | 0.73 | (0.45, 1.11) | 0.66 | (0.10, 2.33) | |||
| Refrained vs. Yes | 0.59 | (0.34, 0.95) | 0.36 | (0.02, 1.79) | |||
| Never vs. Yes | 0.58 | (0.46, 0.75) | 0.38 | (0.14, 0.89) | |||