Serum Vitamin D and Pyridinoline Cross-Linked Carboxyterminal Telopeptide of Type I Collagen in Patients with Ankylosing Spondylitis

Table 5

Multiple linear regression model analysis for ICTP.

Coefficients^c
Model	Unstandardized coefficients		Standardized coefficients		Sig.
		Std.Error	Beta
(Constant)	8.990	0.922		9.755	0.000
CRP	0.087	0.017	0.627	5.155	0.000
25(OH)D	−0.042	0.011	−0.262	−3.641	0.000

Dependent variable: ICTP.