Table 5.

Spearman correlation analysis of serum CRP mg/dl levels and ASspiMRI-a scores.

ASspiMRI-a Timepoint	CRP Timepoint	No. Patients	Spearman Correlation Coefficient	p^*
Baseline score	CRP at baseline	89	0.36	0.0085
Week 14
Score	CRP at baseline	85	0.11	1.000
	CRP at Week 14	85	0.33	0.0357
	CRP change at Week 14	85	0.18	1.000
Change from baseline	CRP at baseline	80	−0.33	0.0464
	CRP at Week 14	79	0.31	0.1024
	CRP change at Week 14	79	0.54	< 0.0001
Week 104
Score	CRP at baseline	68	0.07	1.000
	CRP at Week 14	68	0.13	1.000
	CRP change at Week 14	68	−0.01	1.000
	CRP at Week 104	67	0.01	1.000
	CRP change at Week 104	67	−0.02	1.000
Change from baseline	CRP at baseline	66	−0.40	0.0177
	CRP at Week 14	65	−0.15	1.000
	CRP change at Week 14	65	0.31	0.1914
	CRP at Week 104	65	−0.10	1.000
	CRP change at Week 104	65	0.37	0.0452

↵* Adjusted for multiplicity of testing through the Bonferroni method. Significant data are in bold face. CRP: C-reactive protein; ASspiMRI-a: ankylosing spondylitis spine magnetic resonance imaging activity.