Low intensity, long-term outpatient rehabilitation in COPD: a randomised controlled trial

Respiratory Research

Table 3 Differences from baseline to 6 months between training and control group for six minute walk test, spiroergometry, St. George’s Respiratory Questionnaire score, and Short Form-12 questionnaire score

	Complete study population (n = 81)
	Between group difference (training minus control group)	95% confidence interval	p
6MWT (m)	59	28 to 89	0.0002
Work_peak (Watt)	7.4	0.5 to 13.4	0.04
VO₂peak (l/min)	0.189	0.035 to 0.323	0.02
CPET time (min)	1.7	0.04 to 2.8	0.02
Peak heart rate during CPET (1/min)	4	−2 to 8	n.s.
SF-12 PCS	0.6	−4.1 to 5.2	n.s.
SF-12 MCS	3.0	−3.5 to 9.5	n.s.
SGRQ symptoms	−3	−6 to 12	n.s.
SGRQ activity	−6	−11 to −1	0.03
SGRQ impact	−8	−14 to −2	0.01
SGRQ total	−5	−10 to −1	0.01

6MWT: Six minute walk test; CPET: cardiopulmonary exercise testing; MCS: Mental health component summary score; PCS: Physical component summary score; SF-12: Short form 12 quality of life questionnaire; SGRQ: St. George’s Respiratory Questionnaire.

ISSN: 1465-993X