Illness perceptions in patients receiving rheumatology rehabilitation: association with health and outcomes at 12 months

Table 5 Stepwise regression ^a of 12 month scores for the MHAQ, NRS fatigue, NRS pain and SF-36 on baseline scores for the RD-IPQ and other variables (n=80)

Dependent vbl - discharge	Independent vbls - baseline	Regression coefficient	Standard error	t	Significance level	R2^b
NRS ^c pain	NRS pain	0.402	0.008	3.79	.000	0.270
	RD-IPQ ^d	0.035	0.106	2.36	.021	0.319
	(Constant)	1.094	0.015	1.34	.184
NRS fatigue	NRS fatigue	0.641	0.099	6.46	.000	0.355
	Male	−1.977	0.795	−2.49	.015	0.403
	(Constant)	2.416	0.728	3.32	.001
SF-36^e mental health	SF-36 mental health	0.921	0.094	9.83	.000	0.559
	SF-36 role-emotional	−0.148	0.058	−2.55	.013	0.593
	(Constant)	16.907	5.340	3.17	.002
SF-36 role-emotional	SF-36 mental health	0.740	0.134	5.53	.000	0.251
	Pensioner	−23.377	7.274	−3.21	.002	0.338
	(Constant)	26.560	9.518	2.79	.007
SF-36 role-physical	NRS pain	−4.171	1.448	−2.88	.005	0.200
	Osteo	15.527	6.297	2.47	.016	0.269
	RD-IPQ	−0.509	0.207	−2.46	.016	0.322
	(Constant)	98.418	11.487	8.57	.000
SF-36 social function	SF-36 social function	0.379	17.186	3.19	.002	0.216
	RD-IPQ	−0.545	0.119	−2.50	.014	0.274
	(Constant)	65.650	0.218	3.82	.000

^a Variables are listed in the order in which they entered the equations. The results for the analyses with the MHAQ as dependent variable are not shown because only the baseline scores for the MHAQ entered the equation.
^b Proportion of variation these variables are able to account for in dependent variable scores.
^c NRS scales are scored from 0–10; 0 is no pain and fatigue,10 is the worst pain and fatigue.
^d RD-IPQ is scored from 0 to 100 where 100 is worst possible illness perceptions.
^e SF-36 is scored from 0 to100 where 100 is the best possible health.

ISSN: 1471-2474