Model | Estimate | 95% CI | P |
---|---|---|---|
Linear model | |||
 Model 1 | |||
  Duration of smoking | 0.339 | 0.311, 0.368 | <  0.001 |
 Model 2 | |||
  Duration of smoking | 0.352 | 0.323, 0.380 | <  0.001 |
  Sex (male vs. female) | 1.700 | −0.160, 3.560 | 0.073 |
  Quit vs. never drink | 1.147 | −0.162, 2.456 | 0.086 |
  Current vs. never drink | 3.084 | 2.209, 3.959 | <  0.001 |
  BMI | 0.701 | 0.605, 0.797 | <  0.001 |
  Moderate vs. light physical activity | −3.164 | −4.171, − 2.157 | <  0.001 |
  Heavy vs. light physical activity | −0.742 | −1.602, 0.119 | 0.091 |
 Model 3 | |||
  Duration of smoking | 0.325 | 0.296, 0.354 | <  0.001 |
  Sex (male vs. female) | 2.117 | 0.265, 3.968 | 0.025 |
  Quit vs. never drink | 0.695 | −0.608, 1.998 | 0.296 |
  Current vs. never drink | 3.011 | 2.141, 3.881 | <  0.001 |
  BMI | 0.637 | 0.541, 0.733 | <  0.001 |
  Moderate vs. light physical activity | −2.929 | −3.931, −1.928 | <  0.001 |
  Heavy vs. light physical activity | −0.240 | −1.099, 0.620 | 0.585 |
  LDL-C | 1.188 | 0.768, 1.608 | <  0.001 |
  FPG | 1.165 | 0.916, 1.414 | <  0.001 |
Spline model | |||
 Model 4 a | |||
  Duration of smoking (linear) | 0.136 | 0.066, 0.205 | <  0.001 |
  Duration of smoking (non-linear) | 0.254 | 0.175, 0.333 | <  0.001 |
Segmented model | |||
 Model 5a | |||
  Threshold of duration of smoking | 37.694 | 34.185, 41.202 | – |
  Duration of smoking (shorter than 37.694 years) | 0.261 | 0.218, 0.304 | <  0.001 |
  Duration of smoking (longer than 37.694 years) | 0.696 | 0.543, 0.849 | – |