TABLE 1

Baseline characteristics

VariablePatientsMean±sd
Age at diagnosis years453 (100.0%)73.0±9.0
 Male295 (65.1%)72.3±8.8
 Female158 (34.9%)74.3±9.3
BMI kg·m−2355 (78.4%)28.4±5.2
 <2593 (26.2%)
 25–29.9147 (41.4%)
 >30115 (32.4%)
Smoking438 (96.7%)
 Never smoker197 (45.0%)
 Ex-smoker210 (48.0%)
 Current smoker31 (7.0%)
DLCO % predicted367 (81.0%)55.6±16.5
FVC L407 (89.8%)2.8±0.8
FVC % predicted407 (89.8%)80.2±18.2
GAP stage370 (81.7%)
 GAP 1200 (54.1%)
 GAP 2151 (40.8%)
 GAP 319 (5.1%)

BMI: body mass index; DLCO: diffusing capacity of the lung for carbon monoxide; FVC: forced vital capacity.