 Statistical analysis will be performed using SAS version 8.2 SAS institute Inc., Cary, North Carolina. Biomarker parameters will be tested for an association with patient presentation stable angina vs. NSTEMI and MACE using a log-rank test. OCT derived parameters will be tested for an association with biomarkers using univariate Cox proportional hazard regression. Parameters with a significance level of 0.1 on univariate analysis will undergo multivariate Cox proportional hazard analysis. A p value 0.05 will be considered statistically significant. 