Table 1

Spearman correlation coefficients of different quality of life measures with clinical scales and disease duration

	Hoehn and Yahr stage	Schwab and England disability score	UPDRS motor score	Disease duration	Beck depression inventory	Mini mental state score
EQ-5D:
Mobility	0.70^1-150	−0.65^1-150	0.40^1-150	0.35	0.45^1-150	−0.37
Self care	0.51^1-150	−0.50^1-150	0.36	0.25	0.54^1-150	−0.17
Ususal activities	0.65^1-150	−0.65^1-150	0.40^1-150	0.29	0.59^1-150	−0.37
Pain	0.49^1-150	−0.47^1-150	0.31	0.12	0.45^1-150	−0.24
Psychological functioning	0.41^1-150	−0.37	0.26	0.04	0.55^1-150	−0.26
Summary index	−0.68^1-150	0.66^1-150	−0.40^1-150	−0.21	−0.63^1-150	0.35
Visual analogue scale	−0.32	0.42^1-150	−0.20	−0.03	−0.63^1-150	0.23
PDQ-39:
Activities of daily living	0.63^1-150	−0.55^1-150	0.52^1-150	0.30	0.53^1-150	−0.23
Bodily discomfort	0.36	−0.49^1-150	0.28	0.16	0.53^1-150	−0.31
Cognition	0.43^1-150	−0.44^1-150	0.26	0.15	0.67^1-150	−0.15
Communication	0.49^1-150	−0.50^1-150	0.31	0.19	0.47^1-150	−0.23
Emotional wellbeing	0.40^1-150	−0.51^1-150	0.20	0.04	0.57^1-150	−0.36
Mobility	0.69^1-150	−0.68^1-150	0.45^1-150	0.18	0.54^1-150	−0.39^1-150
Social support	0.22	−0.36	0.10	−0.01	0.32	−0.09
Stigma	0.26	−0.36	0.39^1-150	0.10	0.44^1-150	−0.10
Summary index	0.60^1-150	−0.65^1-150	0.41^1-150	0.18	0.68^1-150	−0.32
SF-36:
Physical summary score	−0.50^1-150	0.49^1-150	−0.41^1-150	−0.21	−0.42^1-150	0.08
Mental summary score	−0.25	0.27	−0.16	0.06	−0.49^1-150	0.35