<qa>  What will be used to test differences between proportions?Statistical analysis: The results will be analyzed according to the intention-to-treat principle. Differences between groups in time-to-event endpoints will be assessed with the log-rank test. For the primary endpoint, patients will be censored at 1 year; analyses at other time points will be handled in a similar way. Survival probabilities will be displayed and calculated using Kaplan-Meier methodology. Hazard ratios HR with 95 confidence intervals between study groups will be calculated using Cox proportional hazard model, if violation to proportional hazard assumption time-dependent HR will be calculated and adjustment will be made for stratification variables, center and STEMINSTEMI. Differences between study groups will be assessed with unpaired t-tests on original scale or log scale as appropriate. Ordinal variables will be assessed with chi-2 test for trend or Mann-Whitney U test and Pearsons chi-square test or Fishers exact test will be used to test differences between proportions. Two-sided statistical significance levels of 5 will be used and estimates will be presented with 95 confidence intervals. 