Table 1 Baseline characteristics of patients in the three groups who showed some improvement following the rehabilitation programme

	“Better”(group 1)	“Slightly better”(group 2)	“About the same”(group 3)
M:F	103:85	61:50	34:21
Age (years)	67.9 (8.3)	70.4 (7.7)	70.3 (7.3)
FEV₁(% predicted)	42.1(24.3)	43.0 (23.6)	45.6 (22.6)
FEV₁/FVC	51.0 (17.2)	50.9 (18.0)	53.9 (23.7)
Height (cm)	166.4 (9.4)	164.2 (9.8)	167.0 (9.1)
Weight	72.8 (17.1)	71.2 (17.3)	76.3 (17.9)
BMI	26.2 (5.3)	26.5 (6.5)	27.5 (7.1)
ISWT (m)	183.2 (113.2)	148.5 (105.6)	178.9 (109.6)

Data are mean (SD).
BMI, body mass index; FEV₁. forced expiratory volume in 1 s; FVC, forced vital capacity; ISWT, incremental shuttle walk test.