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Table 3 Logistic regression model evaluating factors associated with ever smoking

From: Demographics and medical disorders associated with smoking: a population-based study

VariablesUnadjustedAdjusted
OR(95% CI)PvalueOR(95% CI)Pvalue
Sex
 Women1   1   
 Men3.86(3.66,4.07)< 0.0014.18(3.96,4.42)< 0.001
Age (y)
  > 741   1   
 40–542.74(2.50,3.02)< 0.0013.12(2.79,3.49)< 0.001
 55–642.75(2.48,3.05)< 0.0013.16(2.82,3.54)< 0.001
 65–741.03(0.92,1.16)0.5921.09(0.96,1.23)0.176
Insured Category
 Category I1   1   
 Category II1.16(1.09,1.24)< 0.0011.31(1.20,1.43)< 0.001
 Category III0.75(0.70,0.80)< 0.0011.18(1.05,1.31)0.004
 Category V1.85(1.45,2.37)< 0.0012.09(1.56,2.80)< 0.001
 Category VI0.96(0.89,1.04)0.3131.25(1.13,1.38)< 0.001
Insured monthly salary (NTD)
  ≤ 17,2801   1   
 17,280–22,8000.87(0.78,0.97)0.0120.90(0.78,1.04)0.160
 22,801–36,3001.07(0.95,1.20)0.2491.11(0.96,1.28)0.149
  > 36,3011.12(0.99,1.26)0.0700.98(0.85,1.13)0.800
Urbanization of residence area
 I1   1   
 II, III1.11(1.04,1.18)0.0021.09(1.01,1.17)0.019
 IV, V0.96(0.89,1.04)0.2841.05(0.95,1.15)0.344
 VI, VII0.93(0.84,1.01)0.0951.03(0.92,1.15)0.609
Comorbidity
COPD
 No1   1   
 Yes0.89(0.79,0.99)0.0411.15(1.02,1.31)0.029
Hypertension
 No1   1   
 Yes0.71(0.67,0.76)< 0.0010.95(0.89,1.02)0.140
Stroke
 No1   1   
 Yes0.71(0.64,0.79)< 0.0011.02(0.90,1.16)0.730
CAD
 No1   1   
 Yes0.71(0.65,0.78)< 0.0010.99(0.88,1.13)0.922
Adult preventive care
 No1   1   
 Yes0.90(0.85,0.95)< 0.0011.05(0.99,1.11)0.116