Application of the COOP/WONCA charts to aged patients with chronic obstructive pulmonary disease: a comparison between Japanese and Chinese populations

Table 4 Spearman’s rank correlation coefficient between COOP/WONCA chart scores and subjects’ parameters

	COOP/WONCA chart
Japanese (n = 370)	Physical fitness	Feelings	Daily activities	Social activities	Change in health	Overall health	Pain
Age	0.244**	−0.175*	0.021	−0.203**	−0.120	−0.043	−0.108
Sex	0.093	0.065	−0.045	0.029	−0.089	−0.101	0.173*
Body Mass Index	0.007	−0.007	−0.064	−0.023	−0.026	−0.084	0.003
Brinkman index	−0.031	−0.036	0.030	−0.057	0.015	0.141	−0.112
Heating sources	-	-	-	-	-	-	-
Number of respiratory symptoms	0.175*	−0.010	0.095	−0.009	−0.047	0.105*	0.089
COPD status	0.213**	−0.202**	0.011	−0.191**	−0.148*	0.018	−0.037
	COOP/WONCA chart
Chinese (n = 400)	Physical fitness	Feelings	Daily activities	Social activities	Change in health	Overall health	Pain
Age	0.228**	0.069	0.066	0.104	0.073	0.174*	0.088
Sex	−0.009	−0.020	−0.091	−0.106	0.026	−0.036	0.088
Body Mass Index	−0.070	−0.034	−0.086	−0.055	0.041	−0.130	−0.041
Brinkman index	0.257**	0.308**	0.396**	0.328**	−0.030	0.253**	0.206**
Heating sources	0.009	0.100	0.157*	0.146*	−0.132	0.023	0.139
Number of respiratory symptoms	0.368**	0.547**	0.653**	0.616**	0.098	0.398**	0.407**
COPD status	0.452**	0.575**	0.738**	0.681**	0.200**	0.484**	0.429**

ISSN: 1471-2458