Table 3 Logistic regression model evaluating factors associated with ever smoking
From: Demographics and medical disorders associated with smoking: a population-based study
| Variables | Unadjusted | Adjusted | ||||||
|---|---|---|---|---|---|---|---|---|
| OR | (95% CI) | Pvalue | OR | (95% CI) | Pvalue | |||
| Sex | ||||||||
| Women | 1 | 1 | ||||||
| Men | 3.86 | (3.66, | 4.07) | < 0.001 | 4.18 | (3.96, | 4.42) | < 0.001 |
| Age (y) | ||||||||
| > 74 | 1 | 1 | ||||||
| 40–54 | 2.74 | (2.50, | 3.02) | < 0.001 | 3.12 | (2.79, | 3.49) | < 0.001 |
| 55–64 | 2.75 | (2.48, | 3.05) | < 0.001 | 3.16 | (2.82, | 3.54) | < 0.001 |
| 65–74 | 1.03 | (0.92, | 1.16) | 0.592 | 1.09 | (0.96, | 1.23) | 0.176 |
| Insured Category | ||||||||
| Category I | 1 | 1 | ||||||
| Category II | 1.16 | (1.09, | 1.24) | < 0.001 | 1.31 | (1.20, | 1.43) | < 0.001 |
| Category III | 0.75 | (0.70, | 0.80) | < 0.001 | 1.18 | (1.05, | 1.31) | 0.004 |
| Category V | 1.85 | (1.45, | 2.37) | < 0.001 | 2.09 | (1.56, | 2.80) | < 0.001 |
| Category VI | 0.96 | (0.89, | 1.04) | 0.313 | 1.25 | (1.13, | 1.38) | < 0.001 |
| Insured monthly salary (NTD) | ||||||||
| ≤ 17,280 | 1 | 1 | ||||||
| 17,280–22,800 | 0.87 | (0.78, | 0.97) | 0.012 | 0.90 | (0.78, | 1.04) | 0.160 |
| 22,801–36,300 | 1.07 | (0.95, | 1.20) | 0.249 | 1.11 | (0.96, | 1.28) | 0.149 |
| > 36,301 | 1.12 | (0.99, | 1.26) | 0.070 | 0.98 | (0.85, | 1.13) | 0.800 |
| Urbanization of residence area | ||||||||
| I | 1 | 1 | ||||||
| II, III | 1.11 | (1.04, | 1.18) | 0.002 | 1.09 | (1.01, | 1.17) | 0.019 |
| IV, V | 0.96 | (0.89, | 1.04) | 0.284 | 1.05 | (0.95, | 1.15) | 0.344 |
| VI, VII | 0.93 | (0.84, | 1.01) | 0.095 | 1.03 | (0.92, | 1.15) | 0.609 |
| Comorbidity | ||||||||
| COPD | ||||||||
| No | 1 | 1 | ||||||
| Yes | 0.89 | (0.79, | 0.99) | 0.041 | 1.15 | (1.02, | 1.31) | 0.029 |
| Hypertension | ||||||||
| No | 1 | 1 | ||||||
| Yes | 0.71 | (0.67, | 0.76) | < 0.001 | 0.95 | (0.89, | 1.02) | 0.140 |
| Stroke | ||||||||
| No | 1 | 1 | ||||||
| Yes | 0.71 | (0.64, | 0.79) | < 0.001 | 1.02 | (0.90, | 1.16) | 0.730 |
| CAD | ||||||||
| No | 1 | 1 | ||||||
| Yes | 0.71 | (0.65, | 0.78) | < 0.001 | 0.99 | (0.88, | 1.13) | 0.922 |
| Adult preventive care | ||||||||
| No | 1 | 1 | ||||||
| Yes | 0.90 | (0.85, | 0.95) | < 0.001 | 1.05 | (0.99, | 1.11) | 0.116 |