Psychosocial predictors for outcome after total joint arthroplasty: a prospective comparison of hip and knee arthroplasty

Table 2 Regression analyses for THA and TKA patients

	Dependent variable	R² corrected	Significant predictors	B	SE B	β	t	p
THA	t2 WOMAC pain	.171	t0 BSI anxiety	1.52	0.49	.44	3.11	.003
	t2 WOMAC stiffness	.214	t0 WOMAC stiffness	0.32	0.11	.38	2.78	.008
	t2 WOMAC stiffness	.214	t0 SOC-13	−0.82	0.35	−.32	−2.32	.026
	t2 WOMAC function	.316	t0 BSI anxiety	1.89	0.51	.48	3.69	.001
	t2 WOMAC function	.316	t0 F-SozU	−0.72	0.35	−.27	−2.08	.044
	t2 WOMAC total	.305	t0 BSI anxiety	14.06	3.91	.47	3.60	.001
	t2 WOMAC total	.305	t0 F-SozU	−5.38	2.64	−.27	−2.04	.048
TKA	t2 WOMAC pain	.137	t0 WOMAC pain	0.36	0.12	.39	3.13	.003
	t2 WOMAC stiffness	.096	t0 BSI anxiety	1.17	0.45	.34	2.61	.012
	t2 WOMAC function	.183	t0 WOMAC function	0.45	0.12	.45	3.65	.001
	t2 WOMAC total	.195	t0 WOMAC total	0.46	0.12	.46	3.79	<.001

Legend: THA total hip arthroplasty, TKA total knee arthroplasty, WOMAC Western Ontario and Mac Master Universities Osteoarthritis Index, BSI Brief Symptom Inventory, SOC-13 Sense of coherence scale-13, F-SozU questionnaire of social support
Independent variables in the regression model: t0 BSI anxiety, t0 BSI depression, t0 SOC-13, t0 F-SozU, t0-score of the model’s dependent variable

ISSN: 1471-2474