The Achilles tendon total rupture score: a study of responsiveness, internal consistency and convergent validity on patients with acute Achilles tendon ruptures

Table 4 Convergent validity

Time Point		EQ-5D Mobility Sub-Division	EQ-5D Usual Activity Sub-Division	EQ-5D	DRI	DRI (1)	DRI (2)	DRI (3)
Pre-Injury	Correlation coefficient	-0.4 (-0.60 to -0.06)	-0.4 (-0.60 to -0.22)	0.4 (0.65 to 0.20)	-0.6 (-0.78 to -0.30)	-0.5 (-0.74 to -0.25)	-0.5 (-0.71 to -0.21)	-0.6 (-0.80 to -0.40)
	Significance	0.004	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
6 Week	Correlation coefficient	-0.5 (-0.64 to -0.23)	-0.3 (-0.51 to -0.07)	0.5 (0.69 to 0.33)	-0.5 (-0.68 to -0.28)	-0.5 (-0.68 to -0.33)	-0.3 (-0.50 to -0.04)	-0.3 (-0.59 to -0.13)
	Significance	< 0.001	0.019	< 0.001	< 0.001	< 0.001	0.010	0.010
3 Month	Correlation coefficient	-0.5 (-0.74 to -0.35)	-0.2 (-0.49 to 0.44)	0.6 (0.75 to 0.32)	-0.5 (-0.76 to -0.37)	-0.5 (-0.74 to -0.28)	-0.5 (-0.72 to -0.24)	-0.3 (-0.55 to 0.2)
	Significance	< 0.001	0.100	< 0.001	< 0.001	< 0.001	< 0.001	0.020
6 Month	Correlation coefficient	-0.5 (-0.70 to -0.35)	-0.6 (-0.71 to -0.26)	0.5 (0.70 to 0.21)	-0.7 (-0.80 to -0.36)	-0.5 (-0.73 to -0.24)	-0.7 (-0.85 to -0.45)	-0.6 (-0.78 to -0.41)
	Significance	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9 Month	Correlation coefficient	-0.4 (-0.61 to -0.24)	-0.5 (-0.65 to -0.18)	0.3 (0.51 to 0.01)	-0.9 (-0.94 to -0.83)	-0.4 (-0.64 to -0.4)	-0.9 (-0.92 to -0.8)	-0.8 (-0.90 to -0.68)
	Significance	0.001	< 0.001	0.020	< 0.001	0.010	< 0.001	< 0.001

ISSN: 1477-7525