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Table 1 Description of EQ-5D-UK, EQ-5D-SW and GHQ-12 (Total sample, n = 32,548)

From: Assessing outcomes for cost-utility analysis in mental health interventions: mapping mental health specific outcome measure GHQ-12 onto EQ-5D-3L

EQ-5D-UK: Possible values: −0.59 (poorest health) to 1 (best health)
Missing: 8.0 % (n = 2602)
 Mean (SD) 0.80 (0.22)
 Median (range) 0.80 (−0.59 to 1)
 % Floor (−0.59) 0.03 % (n = 10)
 % Ceiling (1) 33.4 % (n = 10,003)
EQ-5D-SW: Possible values: 0.34 (poorest health) to 0.97 (best health)
Missing: 8.0 % (n = 2602)
 Mean (SD) 0.90 (0.09)
 Median (range) 0.93 (0.34–0.97)
 % Floor 0.03 % (n = 11)
 % Ceiling 33.4 % (n = 10,002)
GHQ-12: Possible values: 12 (poorest health) to 0 (best health)
Missing: 3.1 % (n = 1008)
 Mean (SD) 1.10 (2.42)
 Median (range) 0 (0 to 12)
 % Floor (12) 0.9 % (n = 290)
 % Ceiling (0) 71.2 % (n = 22,448)