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Table 2 Odds Ratios and 95% Confidence Interval (CI) for Emphysema Based on Stepwise Multiple Logistic Regression models with Clinical Characteristics Only. (222 subjects)

From: Value of metalloproteinases in predicting COPD in heavy urban smokers

Predictors

OR

95% CI

Age

1.07

(1.02, 1.12)

Pack-Years

1.02

(1.01, 1.04)

FEV1/FVC

0.93

(0.89, 0.96)

Cough

1.91

(0.87, 4.28)

  1. AIC = 238.13
  2. Smokers without Emphysema are Baseline
  3. The full models contained Age, Smoking duration (year), Pack-Years, FEV1/FVC, Cough (Yes vs. No)
  4. Final model: Log-odds of emphysema = 1.07*Age + 1.02*Pack-Years + 0.93* FEV1/FVC + 1.91*Cough
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Respiratory Research

ISSN: 1465-993X

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