Table 2.

Multivariate logistic regression model with calcinosis at baseline as the dependent variable

	β	OR (95% CI)	P-value
Clinical digital ischaemiaa	0.86	2.37 (1.66, 3.39)	<0.001
Severity of digital ischaemiab	0.11	1.12 (1.06, 1.18)	<0.001
Current calcium channel blocker use	–0.35	0.70 (0.52, 0.96)	0.026
Current other vasodilators	–0.22	0.80 (0.39, 1.63)	0.537
Age	0.01	1.01 (1.00, 1.02)	0.234
Female vs male	0.13	1.14 (0.74, 1.76)	0.560
Disease duration	0.05	1.05 (1.03, 1.06)	<0.001
Current vs not current smoker	0.17	1.19 (0.79, 1.80)	0.414
Diffuse vs limited SSc	0.31	1.36 (0.98, 1.89)	0.064
ACA vs all other antibodies	0.52	1.68 (1.17, 2.43)	0.006
Anti-topo antibody vs all other antibodies	0.13	1.16 (0.70, 1.94)	0.566
Anti-RNA polymerase III antibody vs all other antibodies	0.57	1.77 (1.08, 2.89)	0.024

^aSee Methods section.

^bNumber of digits with clinical digital ischaemia.