Risk of occurrence of STEMI during influenza season compared to non-influenza season:
We compared proportion of STEMI over NSTEMI among all AMI cases between influenza and non-influenza seasons. The purpose was to examine if exposure to influenza season as opposed non-influenza season had any significant impact on the frequency of events of STEMI compared to that of NSTEMI. Univariate and multivariate Log binomial regression analyses were performed to measure the unadjusted and adjusted RRs of occurrence of STEMI during influenza vs. non-influenza season. The steps for building the multivariate regression model followed the previously mentioned process.