Table 6.

Correlations between Health Assessment Questionnaire score and disease activity parameters and radiographic scores at baseline and at three, five and 10 years of follow-up

	Baseline		3 years		5 years		10 years
	p	r	p	r	p	r	P	r
DAS	< 0.0001	0.56	< 0.0001	0.57	< 0.0001	0.58	0.0001	0.41
Pain on VAS	0.001	0.43	< 0.0001	0.69	< 0.0001	0.60	< 0.0001	0.57
Morning stiffness	0.06	0.38	< 0.0001	0.60	< 0.0001	0.55	< 0.0001	0.46
Swollen joints	0.03	0.16	0.001	0.19	< 0.0001	0.34	0.48	0.09
Ritchie index score	< 0.0001	0.47	< 0.0001	0.57	< 0.0001	0.56	< 0.0001	0.46
ESR	0.10	0.24	0.04	0.27	0.006	0.29	0.05	0.17
CRP	0.0004	0.35	0.0004	0.25	0.02	0.11	0.69	0.04
Erosion score	0.78	0.01	0.74	0.08	0.007	0.16	0.46	0.14
Narrowing score	0.76	0.06	0.80	0.24	0.39	0.10	0.64	0.17
Total Sharp score	0.51	0.04	0.86	0.18	0.06	0.14	0.50	0.16

CRP, C-reactive protein; DAS, disease activity score; ESR, erythrocyte sedimentation rate; VAS, visual analogue score