Table 4.

Spearman’s rank correlation coefficients (95% CIs) for the change (pre- and post-operative) scores

		Total	Transition levela
			Much better	A little better	About the same	A little worse	Much worse
Hip	N	181,424	155,899	15,565	3891	2382	1633
	OHS	0.32 (0.31, 0.32)	0.33 (0.32, 0.33)	0.55 (0.54, 0.56)	0.57 (0.55, 0.59)	0.57 (0.54, 0.60)	0.50 (0.46, 0.53)
	N	171,423	147,638	14,577	3625	2216	1493
	EQ-5D-3L	0.32 (0.31, 0.32)	0.31 (0.31, 0.32)	0.47 (0.46, 0.48)	0.50 (0.48, 0.53)	0.47 (0.43, 0.50)	0.45 (0.40, 0.49)
Knee	N	191,379	138,407	31,650	8985	7029	4610
	OKS	0.37 (0.37, 0.37)	0.36 (0.36, 0.37)	0.56 (0.55, 0.57)	0.61 (0.60, 0.63)	0.62 (0.61, 0.64)	0.57 (0.55, 0.58)
	N	180,546	130,838	29,888	8434	6569	4243
	EQ-5D-3L	0.37 (0.37, 0.37)	0.34 (0.34, 0.35)	0.48 (0.47, 0.49)	0.51 (0.49, 0.52)	0.49 (0.47, 0.51)	0.46 (0.44, 0.49)

^aBased on the question, Table 1