A Comparison of the Assessment of Quality of Life with CAT, CCQ, and SGRQ in COPD Patients Participating in Pulmonary Rehabilitation

Figures & data

short-legendFigure 1. 

Table 1.  Patients´ characteristics for patients who started pulmonary rehabilitation

	All (n = 90)
Age, years	69.5 (8.7)
Gender,% males	35.6
FEV1% predicted value	38.7 (12.9)
Body mass index, kg/m^2	26.9 (5.8)
Current smokers,%	20.2
Package years (minimum –maximum)	40.1 (0–150)
ISWT, meter (minimum –maximum)	170 (20–440)
Years of education (minimum –maximum)	8.8 (5–19)
Medical Research Council (MRC) dyspnoea score (minimum-maximum)	4.4 (2–5)
Oxygen saturation at rest,%	94.5 (2.2)
Oxygen saturation after incremental test,%	89.8 (5.2)
D vitamin, nM	59.3 (29.9)

Continuous variables are presented as mean (SD) unless otherwise indicated.

Table 2.  Time to complete the questionnaire, need of help from the respiratory nurse, and overall scores at baseline

	Time, seconds (minimum–maximum)	Help,%	Score (minimum–maximum)
CAT	107 (43–210)	53.9	1.81 (0.2–3.4)
CCQ	134 (29–307)	34.5	26.5 (6–51)
SGRQ	578 (300–960)	86.9	51.1 (19.0–79.0)

Mean value and (range).

Table 3.  Pearson correlations between overall scores from CAT, CCQ, and SGRQ

	r	P-value
CAT versus CCQ	0.76	<0.001
CAT versus SGRQ	0.73	<0.001
CCQ versus SGRQ	0.75	<0.001

Table 4.  Characteristics of patients who needed help to complete the HRQoL questionnaires

	SGRQ*			CAT*			CCQ*
	+help, n = 77	–help, n = 12	p-value	+help, n = 48	–help, n = 41	p-value	+help, n = 32	–help, n = 57	p-value
Age, years	70.0	65.6	0.10	71.7	66.8	0.008	71.7	68.2	0.069
Males,%	39.0	16.7	0.20	27.1	46.3	0.06	37.5	35.1	0.82
FEV1,%	38.9	37.2	0.68	42.6	34.0	0.002	42.7	36.3	0.025
MRC, score (1–5)	4.32	4.58	0.28	4.13	4.63	0.002	4.09	4.51	0.014
School years	8.6	10.4	0.026	8.2	9.5	0.027	7.9	9.3	0.017
ISWT, meter	165	200	0.13	160	180	0.22	152	180	0.09

All variables in Table 1 have been tested, but only variables significantly associated with needed help are shown in this table. *One patient is missing.