Risk Predictors for Bronchiolitis or Emphysema Detected on CT Scans.

Abbreviations: BMI, body mass index; CI, confidence interval; OR, odds ratio; ROC, receiver operating characteristics; WBC, white blood cell;*adjusted for all the variables listed in this table in a multivariate logistic regression model (see Methods for detail).†Incremental ROC represents area under the curve obtained by adding the previous row variable to the current row variable in a multivariate logistic regression model (see Methods for detail). For example, model 2 incremental ROC and p values are obtained by comparing a logic regression model that contains WBC and current smoker variables to that which contains only current smoker variable (i.e. model 1).‡p value is obtained by comparing the incremental ROC value of the current row to the previous row ROC value.Risk Predictors for Bronchiolitis or Emphysema Detected on CT Scans.