Table 4 The multiple logistic regression models of the risk factors for obesity (n = 1482)
Variables | Model 1 | Model 2 | ||
|---|---|---|---|---|
POR (95% CI) | P value | POR (95% CI) | P value | |
Sociodemographic characteristics | ||||
 Ethnicity (Reference: Han) | 3.05 (2.28–4.07) |  < 0.001 | 3.00 (2.24–4.00) |  < 0.001 |
 Sex (Reference: male) | 0.98 (0.76–1.26) | 0.853 | 0.98 (0.76–1.26) | 0.852 |
 Age (Reference: 20–49 years) | ||||
  50–59 years | 0.85 (0.62–1.16) | 0.306 | 0.83 (0.61–1.14) | 0.257 |
  60–69 years | 1.10 (0.77–1.57) | 0.618 | 1.09 (0.76–1.56) | 0.641 |
  ≥ 70 years | 0.57 (0.37–0.87) | 0.009 | 0.56 (0.36–0.85) | 0.007 |
 Education (Reference: elementary school) | ||||
  High school | 1.10 (0.81–1.49) | 0.556 | 1.10 (0.81–1.49) | 0.544 |
  At least with college | 0.73 (0.52–1.02) | 0.064 | 0.73 (0.52–1.02) | 0.062 |
 Marital status (Reference: singlea) | 1.22 (0.91–1.65) | 0.187 | 1.21 (0.90–1.63) | 0.209 |
 Employed status (Reference: not employed) | 1.19 (0.92–1.55) | 0.185 | 1.18 (0.91–1.54) | 0.206 |
Unhealthy behaviors, number (Reference: zero) | ||||
 1–2 |  |  | 1.28 (0.89–1.83) | 0.179 |
 3–5 |  |  | 1.37 (0.93–2.01) | 0.114 |
 ≥ 6 |  |  | 3.98 (1.02–15.51) | 0.047 |
Model’s information |  |  |  |  |
 − 2 log Likelihood | 1581.23 |  | 1575.6 |  |
 Likelihood ratio statistic (G2) | 71.1 |  < 0.001 | 76.72 |  < 0.001 |