Table 1.

Descriptive statistics of EQ-5D and SF-6D utility scores (n = 493)

	EQ-5D utility score	SF-6D utility score
Mean	0.861	0.809
Standard deviation	(0.181)	(0.140)
Median	0.848	0.830
Inter-quartile range	(0.796, 1.000)	(0.706, 0.938)
Minimum	-0.077	0.374
Maximum	1.000	1.000
95% CI	(0.844, 0.877)	(0.796, 0.822)
99% CI	(0.838, 0.883)	(0.792, 0.826)
Mean difference (95% CI)	0.052 (0.040, 0.064)*

CI denotes confidence interval.

* p-value < 0.001