Multivariate Analysis and Outcomes in Percutaneous Coronary Intervention; from Statistics to Cath Lab

High quality randomised clinical trials (RCTs) and meta-analysis represent the highest levels of evidence, but in everyday clinical practice, observational studies are often exploited as a quick and easy way to understand the performance of clinical and interventional strategies. In this setting, multivariate analyses are exploited to drive useful and independent information, but due to potentially confounding messages, should be critically appraised and used in everyday clinical practice.