Abstract S48 Table Characteristics of patients and control subjects

	Patients	Controls
Smoking pack years median (range)	47.5 (10–150)	30 (10–80)*
FEV₁ % predicted	63.7(17.9)	92.9 (10.6)**
FFMI (kg/m²)	18.3 (2.4)	20.4 (1.7)*
ISWT (m)	424 (171)	563 (221)*
BMD hip (g/cm²)	0.93 (0.14)	1.05 (0.17)*
BMD lumbar spine (g/cm²)	1.03 (0.20)	1.13 (0.22)

*p<0.05; **p<0.001. BMD, bone mineral density; FFMI, fat-free mass index; ISWT, incremental shuttle walking test.