Table 5

Coronary artery calcification: univariate and multivariate binary logistic analysis assessing the relationship between associated variables and presence on baseline LDCT

VariableUnadjusted OR
(95% CI)
P valueAdjusted OR
(95% CI)
P value
BMI
 Per increasing kg/m21.01 (1.00 to 1.01)0.0511.01 (1.00 to 1.01)0.037
Age
 Per increasing year1.10 (1.09 to 1.10)<0.0011.09 (1.09 to 1.10)<0.001
Gender
 Female11
 Male2.46 (2.27 to 2.66)<0.0012.57 (2.35 to 2.81)<0.001
Blood pressure
 Systolic BP1.01 (1.01 to 1.01)<0.0011.01 (1.01 to 1.01)<0.001
 Diastolic BP0.994 (0.990 to 0.997)0.0010.99 (0.98 to 0.99)<0.001
Smoking status
 Current smoker11
 Former smoker1.15 (1.07 to 1.24)<0.0011.11 (1.01 to 1.20)0.023
Pack year history
 Per increasing pack year1.01 (1.01 to 1.01)<0.0011.00 (1.00 to 1.01)0.001
Ethnicity
 Other11
 White1.37 (1.12 to 1.69)0.0031.46 (1.17 to 1.82)0.001
 Mixed0.97 (0.70 to 1.33)0.8321.27 (0.90 to 1.79)0.182
 Asian2.29 (1.76 to 2.97)<0.0011.88 (1.42 to 2.48)<0.001
 Black0.65 (0.50 to 0.87)0.0020.69 (0.51 to 0.92)0.010
Airflow obstruction
 No airflow obstruction11
 Airflow obstruction1.29 (1.20 to 1.40)<0.0011.07 (0.98 to 1.16)0.138
  • BMI, body mass index; BP, blood pressure; LDCT, low-dose CT.