Table 3.

Distribution of the EQ-5D-3L and EQ-5D-5L indices (total sample and positive values subsample^a)

	EQ-5D-3L	EQ-5D-5L
Total sample	N = 7554	N = 7554
Theoretical range	−0.653, 1	− 0.654, 1
Observed range	− 0.653, 1	−0.654, 1
% with worst health state (95% CI)	0.14% (0.04, 0.24)	0.03% (0, 0.08)
% with best health (95% CI)	61.82% (59.38. 64.26)	60.82% (58.36, 63.28)
Mean, SD (95% CI)	0.87, SD = 0.25 (0.86, 0.88)	0.89, SD = 0.22 (0.88, 0.90)
Median [IQR]	0.93 [0.87, 0.96]	0.94 [0.88, 0.97]

^aAfter excluding participants with negative values in any index

The EQ-5D-3L index was calculated with the conventional Time Trade Off preference values from the Spanish general population [33]; and the EQ-5D-5L index was calculated with the 3 L–5 L crosswalk from Spain [34]