TABLE 3.
LOGISTIC REGRESSION MODEL OF PREDICTORS OF  o2max < 8.3 ml/kg/min
o2max < 8.3 ml/kg/min
| OR | 95% CI | P Value | |
|---|---|---|---|
| Linear predictor | 0.57 | 0.37–0.87 | 0.01 | 
Linear predictor = −0.232(age) + 2.53(male gender) − 1.6(ever smoker) + 0.82(FVC%) + 0.30(DlCO%).
Definition of abbreviations: CI = confidence interval; DlCO% = baseline diffusion capacity for carbon monoxide percent predicted; FVC% = baseline forced vital capacity percent predicted; OR = odds ratio;  o2max = maximal oxygen consumption during cardiopulmonary exercise testing.
o2max = maximal oxygen consumption during cardiopulmonary exercise testing.
n = 103.