Validity of EQ-5D-5L health-related quality of life questionnaire in self-reported diabetes: evidence from a general population survey

Table 4 Convergent validity with generic questionnaires indexes (Spearman's rank correlation coefficients) (N = 247)

	EQ-5D-5L index	EQ-5D-5L_crosswalk index	EQ-5D-3L index	SF-6D index	PCS-12	MCS-12	EQ VAS
EQ-5D-5L index	–	0.99	0.85	0.76	0.80	0.30	0.63
EQ-5D-5L_crosswalk index		–	0.87	0.75	0.79	0.31	0.62
EQ-5D-3L index			–	0.74	0.76	0.38	0.60
SF-6D index				–	0.73	0.54	0.63
PCS-12					–	0.06*	0.64
MCS-12						–	0.30
EQ VAS							–

^*All correlations statistically significant except those marked with an asterisk. MCS-12 Mental Component Summary score; PCS-12 Physical Component Summary score

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