Spss 22.0 statistical package program for windows spss

All parameters were studied usage the SPSS 22.0 Statistical Package Program for Windows (SPSS; IBM, Armonk, New York, USA). The categorical data between groups were compared usage the χ² test or Fisher’s exact test. The Kolmogorov–Smirnov test was employed to evaluate the normality of distribution. The continuous variables were displayed as mean ± standard deviation or median ± interquartile ranges, and the categorical variables were displayed as the number of patients and percentages. A comparison between study populations was performed with the Student’s t test for the normally distribution and the Mann–Whitney U test for the skewed distributed variables. A value of p < 0.05 (using a two-sided test) was adopted as statistically significant. Multivariate logistic regression analyses were performed to assess the predictors of HTB. Two unlike models were designed to evaluate the predictiveness of MAPH score at each shear rate of whole blood viscosity (WBV) levels at multivariate analysis. ROC analyses were made to evaluate the predictive value of variables for HTB. The cut-off value was considered based on Youden index.