Table 1

 Demographics of the patients

Complete patient dataNo outcome data
n = 162 (108 men,54 women)n = 22 (12 men,10 women)
Mean (SD)Mean (SD)
BMI, body mass index; DLCO: diffusing capacity of lungs for carbon monoxide; FEV1: forced expiratory volume in one second; FFMI, Fat-Free Mass Index; GOLD, Global Initiative for Chronic Obstructive Lung Disease; QMVC, quadriceps maximal voluntary contraction.
We found no significant differences between the patients in whom outcome data were available and those for whom they were not.
Age when tested (years)63.7 (9.3)66.7 (9.5)
Height (m)1.7 (0.09)1.67 (0.09)
Weight (kg)70.2 (16.3)70.4 (15.7)
BMI (kg/m2)24.4 (5)25.2 (4.7)
FFMI in men (kg/m2)17.1 (2.3)17.9 (2.5)
FFMI in women (kg/m2)15.8 (2.3)15.7 (1.7)
FEV1(l)0.98 (0.44)1.02 (0.3)
FEV1% predicted35.6 (16.2)42.2 (9.3)
DLCO % predicted37.3 (17.6)41.2 (12.1)
GOLD stage
    00 (0%)0 (0%)
    12 (1.2%)0 (0%)
    229 (17.9%)3 (13.6%)
    356 (34.6%)9 (40.9%)
    475 (46.3%)10 (45.5%)
QMVC (kg)32.4 (11.5)35.7 (13.3)
QMVC as a % of BMI135.5 (46.7)142.7 (50.5)