Forest plots of randomised controlled trials and propensity score matched studies examining outcomes between patients taking proton pump inhibitor (PPIs) with clopidogrel and those taking only clopidogrel: (A) overall mortality; (B) acute coronary syndromes... Forest plots of randomised controlled trials and propensity score matched studies examining outcomes between patients taking proton pump inhibitor (PPIs) with clopidogrel and those taking only clopidogrel: (A) overall mortality; (B) acute coronary syndromes; (C) myocardial infarction; (D) need for revascularisation; (E) cerebrovascular accidents; (F) gastrointestinal bleeding. Rhanderson N Cardoso et al. Open Heart 2015;2:e000248 ©2015 by British Cardiovascular Society