Table 4 Multiple linear regression analysis showing the association of smoking and living in PM2.5 areas with AHRR (cg05575921) methylation in the study participants
From: AHRR cg05575921 methylation in relation to smoking and PM2.5 exposure among Taiwanese men and women
Variable | β | P value |
|---|---|---|
Smoking status (reference: never) | ||
 Former | − 0.03918 | < 0.0001 |
 Current | − 0.17536 | < 0.0001 |
 P-trend | < 0.0001 | |
Area (reference: north) | ||
 North-center | − 0.00267 | 0.6230 |
 Center | − 0.01356 | 0.0074 |
 South | − 0.01970 | < 0.0001 |
 P-trend | < 0.0001 | |
Exercise (reference: no) | ||
 Yes | 0.00086 | 0.8218 |
Sex (reference: women) | ||
 Men | − 0.01867 | < 0.0001 |
Age | − 0.00044 | 0.0139 |
BMI | 0.00058 | 0.2527 |
Alcohol drinking (reference: no) | ||
 Former | − 0.00500 | 0.6027 |
 Current | 0.00156 | 0.8330 |
Secondhand smoke exposure (reference: no) | ||
 Yes | 0.00139 | 0.8063 |