Statistical Analyses
SPSS 18.0 (SPSS, Inc, Chicago, Illinois) was used statistically for
analysis. Kolmogorov-Smirnov test evaluated the distribution of
continuous variables. Student’s t test for continuous variables was used
to analyze the differences between main groups. In addition, univariate
and multivariate logistic regression analyzes were performed to evaluate
the relationship between myocardial blushing grade and fragmented QRS,
ST segment resolution, and TIMI frame count. In the stepwise
multivariate regression analysis (Backward, Wald), the effect size was
adjusted for all variables with a univariate significance level of
<0.2. Adjusted odds ratios (OR) are presented with 95% CIs.
Continuous variables were expressed as mean + standard deviation and
categorical variables were expressed as percentages. Two-tailed P values
<0.05 were considered statistically significant.