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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: South Med J. 2016 Jan;109(1):61–76. doi: 10.14423/SMJ.0000000000000404

Fig. 9.

Fig. 9

Forest plot of unadjusted odds ratios (ORs; 95% confidence intervals [CIs]) for mortality after primary percutaneous coronary intervention in patients with ST-elevation myocardial infarction undergoing radial artery access (RA) compared with femoral artery access (FA). A total of 12,944 patients were analyzed for mortality outcomes, 4329 (33%) of whom underwent RA and 8615 (67%) of whom underwent FA. A total of 520 patients (4%) died during follow-up. In the meta-analysis, RA was associated with an overall reduction in mortality (2.8% vs 4.6%, OR 0.61, 95% CI 0.49–0.76, P < 0.001). Benefits were observed in both randomized controlled trials (3.4% vs 5.8%, OR 0.57, 95% CI 0.39–0.82, P < 0.003) and cohort studies (2.6% vs 4.4%, OR 0.63, 95% CI 0.48–0.84, P = 0.002).