Table 5

Change in outcome measure by anchor question response

	‘Much better’	‘A little better’	‘No different’	‘A little worse’	p Value
ΔCAT	−3.8±6.1	−1.3±4.5	−1.1±3.4	2.0±0	0.002
ΔCAT	n=162	n=88	n=8	n=3	0.002
ΔHAD anxiety	−1.5±3.2	−1.0±3.0	2.0±2.6	1.7±3.2	0.04
ΔHAD anxiety	n=109	n=61	n=7	n=3	0.04
ΔHAD depression	−1.6±3.0	−1.5±2.6	−1.7±3.0	1.3±0.6	0.03
ΔHAD depression	n=110	n=61	n=7	n=3	0.03
ΔCRQ total	3.8±3.7	2.3±3.9	−0.8±2.1	−2.7±1.4	0.005
ΔCRQ total	n=103	n=53	n=6	n=2	0.005
ΔISWT	77.8±72.4	45.7±75.7	54.0±89.3	33.3±106.9	0.009^*
ΔISWT	n=108	n=53	n=10	n=3	0.009^*
ΔMRC	−0.6±0.7	−0.5±0.8	−0.3±0.4	–	NS^*
ΔMRC	n=81	n=39	n=8	–	NS^*
ΔCCQ	−0.7±1.1	−0.7±0.6	0.7	–	NS^*
ΔCCQ	n=36	n=19	n=1	–	NS^*
Δ6MWD	86.9±83.1	44.6±48.5	80	–	NS^*
Δ6MWD	n=42	n=22	n=1	–	NS^*
ΔSGRQ total	−3.3±8.8	−3.1±8.2	−13±18.4	–	NS^*
ΔSGRQ total	n=21	n=14	n=2	–	NS^*

Measures are presented in order of frequency with which they were documented.
p Values are for ANOVA except.
↵* Kruskal Wallis test.
CAT, COPD assessment test; CCQ, Clinical COPD Questionnaire; COPD, chronic obstructive pulmonary disease; CRQ, chronic respiratory questionnaire; HAD, Hospital Anxiety and Depression score; ISWT, incremental shuttle walk test; MRC, Medical Research Council dyspnoea score; 6MWD, 6 min walk distance; NS, non-significant; SGRQ, St George's Respiratory Questionnaire.