Table 2.

Basic characteristics of study participants in subsequent statistical analyses

	COPD	Control
	Mean ± SD (Min, Max)	Mean ± SD (Min, Max)
Age (years)	69.6±10.1 (42.0, 94.0)	57.5±13.4 (32.0, 98.0)
Height (cm)	153.3±8.6 (131.0, 175.0)	158.0±8.5 (133.0, 180.0)
Body weight (kg)	47.6±9.6 (29.0, 89.0)	53.7±9.3 (32.0, 80.0)
BMI (kg/m2)	20.2±3.1 (13.8, 39.6)	21.4±3.0 (13.7, 30.3)

Abbreviations: COPD, chronic obstructive pulmonary disease; SD, standard deviation; BMI, body mass index; Min, minimum; Max, maximum.