Association of psychological status and patient-reported physical outcome measures in joint arthroplasty: a lack of divergent validity

Table 2 Correlations between WOMAC, FJS-12, Catastrophising and BSI

	FJS-12	WOMAC Total	WOMAC Pain	WOMAC Stiffness	WOMAC Function
Catastrophising	−0.60	0.79	0.78	0.60	0.77
BSI Somatisation	−0.49	0.63	0.60	0.53	0.64
BSI Obsessive-compulsive	−0.33	0.39	0.36	0.36	0.39
BSI Interpersonal sensitivity	−0.34	0.39	0.38	0.30	0.39
BSI Depression	−0.28	0.39	0.37	0.28	0.39
BSI Anxiety	−0.38	0.49	0.47	0.40	0.50
BSI Hostility	−0.33	0.38	0.37	0.26	0.38
BSI Phobic anxiety	−0.39	0.46	0.44	0.42	0.45
BSI Paranoid ideation	−0.32	0.41	0.41	0.25	0.40
BSI Psychoticism	−0.30	0.35	0.34	0.28	0.35
BSI GSI	−0.44	0.54	0.52	0.43	0.54

All correlations are significant at the 0.01 level (two-tailed). Negative correlations reflect the direction of the scoring used for the FJS-12.

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