Rheumatoid arthritis is an independent risk factor for multi-vessel coronary artery disease: a case control study

Table 3 Ordinal logistic regression models for the number of diseased vessels

Variable	Unadjusted OR (95% CI)	P	Adjusted OR^a(95% CI)	P
RA diagnosis	1.73 (1.03, 2.91)	0.04	1.97 (1.15, 3.36)	0.01
History of hyperlipidemia	NA	NA	2.56 (1.35, 4.85)	0.004
Age (per year increase)	NA	NA	1.05 (1.02, 1.07)	0.002
Sex (female relative to male)	NA	NA	0.40 (0.23, 0.67)	0.001

^aAdjusted model is the result of a forward selection procedure, and adjustment was made for age, sex and history of hyperlipidemia.
CI, confidence interval; NA, not applicable; OR, odds ratio; RA, rheumatoid arthritis.

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