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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: J Arthritis. 2015 Dec 5;4(4):178. doi: 10.4172/2167-7921.1000178

Table 2.

Cardiovascular event incidence rates in the RA cohort versus Non-RA cohort.

RA
N=51,130		 Non-RA
N=154,292		 Crude RR (95% CI) Crude risk difference (95% CI)
CV event IR* Events/total person-years 10.19
1202/117,944		 6.41
2311/360,550		 1.59 (1.48, 1.70) 3.78 (3.22, 4.35)
MI IR Events/total person-years 3.73
449/120,454		 2.09
765/365,780		 1.78 (1.59, 2.00) 1.64 (1.31, 1.96)
Stroke IR Events/total person-years 5.30
636/120,001		 3.42
1247/364,442		 1.55 (1.41, 1.70) 1.88 (1.47, 2.29)
PCI-CABG IR Events/total person-years 3.98
477/119.899		 2.44
889/364,471		 1.63 (1.46, 1.82) 1.54 (1.19, 1.89)

CV=cardiovascular; IR=incidence rates; MI=myocardial infarction; PCI=percutaneous coronary intervention; CABG=coronary artery bypass graft; RR=rate ratio