Catabolic and anabolic periarticular bone changes in patients with rheumatoid arthritis: a computed tomography study on the role of age, disease duration and bone markers

Table 4 Mixed linear model regression with erosion counts as dependent variable

Parameter	Regression coefficient	Pvalue	95% Confidence interval
			Lower bound	Upper bound
Intercept	-6.671	0.238	-18.139	4.798
Sex (male)	2.500	0.403	-3.503	8.504
Age (years)	0.104	0.237	-0.075	0.284
Disease duration (years)	0.868	<0.001	0.500	1.236
DAS28	0.325	0.556	-0.886	1.535
Change in TRAP5b	-0.215	0.797	-2.118	1.688
Change in BAP	0.035	0.660	-0.186	0.256

Regression coefficients and P values are shown for each dependent variable at follow-up. Significant correlations (P <0.05) are indicated in bold. DAS28, Disease Activity Score 28; TRAP5b, tartrate-resistant acid phosphatase 5b; BAP, bone alkaline phosphatase.

ISSN: 1478-6362