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Within quartile agreement between instruments by quartile. HUI = Health Utilities Index, FT = Feeling Thermometer, SF-6D = Short Form-6 Dimensions, Disagreement = top quartile of one score, lowest quartile of other score, Significantly higher % agreement: HUI2/HUI3 versus all others (P < 0.001):, SF-6D/HUI3 versus FT/HUI3, FT/HUI2, FT/SF-6D (all P < 0.001), SF-6D/HUI2 versus FT/HUI3 (P = 0.008), FT/HUI2 (P = 0.003), FT/SF-6D (P < 0.001), FT/HUI3 versus FT/SF-6D (P = 0.04).
