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. Author manuscript; available in PMC: 2015 Mar 12.
Published in final edited form as: JAMA Ophthalmol. 2014 Mar;132(3):310–318. doi: 10.1001/jamaophthalmol.2013.7639

Table 2.

EQ-5D Index and Visual Analog Scale Scores by Country

Australia (N = 150) Canada (N = 150) United Kingdom (N = 152) United States (N = 155)
EQ-5D-Index
 Mean (SD) 0.92 (0.12) 0.93 (0.11) 0.93 (0.12) 0.92 (0.13)
 Range 0.41–1.0 0.31–1.0 0.52–1.0 0.45–1.0
 IQR 0.15 0.17 0.15 0.17

EQ-5D-Visual Analog Scale
 Mean (SD) 81.6 (12.8) 84.5 (11.1) 84.4 (14.6) 84.5 (15.3)
 Range 25.0–100.0 40.0–100.0 4.0–100.0 15.0–100.0
 IQR 16.0 10.0 15.0 15.0