Table 3.

Correlations between the Cardiff Classifier belief B(OA) and each of the patient-reported outcomes at baseline (pre-operative), post-operatively, and the post-surgical change for the 22 TKR subjects. * P < 0.05, *P < 0.01, ^† Spearman’s correlation coefficient (non-parametric data).

			KOS	OKS	PACS
B(OA)	Baseline	r	−.695**†	−.621**	−.261
		p	.000	.002	.328
		N	22	22	16
	Postoperative	r	−.656**†	−.685**†	−.623**†
		p	.001	.000	.003
		N	21	22	20
	Change	r	−.741**	−.810**	−.234
		p	.000	.000	.402
		N	21	22	15