Table 1

Participating centres and outcome measures employed

Name of participating centre	No. of patients	Outcome measures
Royal Brompton and Harefield Foundation NHS Trust	87	SGRQ, ISWT, ESWT, HAD, MRC, CRQ
St George's Hospital NHS Trust	22	ISWT, SGRQ
Kings Health Partners/Guy's and St Thomas' Foundation NHS Trust	66	6MWT, ISWT, CRQ, HAD, MRC
Greenwich PCT	57	6MWT, CCQ
Kensington and Chelsea PCT	11	ISWT, ESWT, CRQ, HAD
Croydon PCT	34	ISWT, CRQ, HAD
Westminster PCT	17	ESWT, CRQ, HAD, MRC

CCQ, Clinical COPD (chronic obstructive pulmonary disease) Questionnaire; CRQ, Chronic Respiratory Questionnaire; ESWT, endurance shuttle walk test; HAD, Hospital Anxiety and Depression score; ISWT, incremental shuttle walk test; MRC, Medical Research Council dyspnoea score; 6MWT, 6 min walk test; PCT Primary Care Trust; SGRQ, St George's Respiratory Questionnaire.