Table 4

Binary logistic regression analysis to assess the association between presence or absence of COPD and the rs7041 genetic variant (under a recessive model of inheritance) (n=403)

Risk of COPD
Model without 25-OHDModel with 25-OHD
OR (CI)p ValueOR (CI)p Value
25-OHD0.94 (0.91 to 0.96)<0.0001
Age1.10 (1.06 to 1.13)<0.00011.09 (1.06 to 1.14)<0.0001
Pack-years1.02 (1.01 to 1.03)0.0031.01 (1.00 to 1.02)0.05
rs70412.11 (1.20 to 3.71)0.009
  • A model without 25-OHD (ng/ml) as an explanatory variable is compared with a model in which 25-OHD was included. Non-significant covariates quit-years, gender and rs7041 (in the model with 25-OHD) are listed in the table but not included in the final represented model.

  • COPD, chronic obstructive pulmonary disease; 25-OHD, 25-hydroxyvitamin D.