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Table 3 Multiple linear regression analysis showing the association of smoking and PM2.5 with AHRR cg05575921 methylation in the study participants stratified by sex

From: AHRR cg05575921 methylation in relation to smoking and PM2.5 exposure among Taiwanese men and women

Variable Men Women
β P value β P value
Smoking status (reference: never)
 Former − 0.04274 < 0.0001 − 0.01937 0.0417
 Current − 0.17700 < 0.0001 − 0.17255 < 0.0001
 P-trend < 0.0001 < 0.0001
PM2.5 − 0.00163 0.0017 − 0.00105 0.0015
Age − 0.00045 0.1311 − 0.00033 0.0944
Exercise (reference: no)
 Yes − 0.00015 0.9809 0.00292 0.4678
BMI 0.00001 0.9881 0.00103 0.0433
Alcohol drinking (reference: no)
 Former − 0.01034 0.4041 0.03269 0.1040
 Current 0.00127 0.8913 0.03218 0.1065
Secondhand smoke exposure (reference: no)
 Yes − 0.00070 0.9394 0.00366 0.5525