Table 4

Emphysema: univariate and multivariate binary logistic regression analyses of factors associated with the presence on baseline LDCT

VariableUnadjusted OR
(95% CI)
P valueAdjusted OR
(95% CI)
P value
Age
 Per increasing year1.037 (1.031 to 1.044)<0.0011.025 (1.018 to 1.032)<0.001
Gender
 Female11
 Male1.074 (0.991 to 1.163)0.0811.051 (0.966 to 1.144)0.245
Smoking status
 Former smoker11
 Current smoker1.186 (1.096 to 1.283)<0.0011.219 (1.120 to 1.326)<0.001
Pack year history
 Per increasing pack year1.007 (1.005 to 1.009)<0.0011.005 (1.003 to 1.007)<0.001
Airflow obstruction
 No airflow obstruction11
 Airflow obstruction3.118 (2.870 to 3.388)<0.0012.888 (2.652 to 3.144)<0.001
  • LDCT, low-dose CT.