Table 2.

Spearman correlations (r) for the EQ-5D and SF-6D with SF-36 domains, summary scores, SLE disease activity (SLEDAI), and damage scores (SDI).

	SF-6D Score	SF-36 PCS	SF-36 MCS	SF-36 PF	SF-36 RP	SF-36 BP	SF-36 GH	SF-36 V	SF-36 SF	SF-36 RE	SF-36 MH	SLEDAI	SDI
EQ-5D index	0.62	0.52	0.30	0.54	0.43	0.62	0.42	0.46	0.55	0.5	0.56	−0.22	0.20
SF-6D	NA	0.72	0.30	0.72	0.72	0.69	0.57	0.73	0.76	0.61	0.66	−0.23	−0.22
EQ-5D VAS	0.62	0.52	0.22	0.52	0.53	0.47	0.49	0.55	0.54	0.33	0.53	−0.21	−0.20
SLEDAI	−0.23	−0.13	−0.10	−0.18	−0.15	−0.22	−0.22	−0.16	−0.13	−0.18	−0.19
SDI	−0.22	−0.06	−0.09	−0.21	−0.09	−0.08	−0.1	−0.09	−0.13	−0.16	−0.21

PF: physical functioning; RP: role limitations physical; BP: bodily pain; GH: general health perceptions; V: vitality; SF: social functioning; RE: role limitations emotional; MH: mental health; NA: not applicable. For other abbreviations, see Table 1.