Statistical analysis
REGRESSION
Data were verified, coded and analyzed using IBM SPSS 24.0 (IBM SPSS Inc., Chicago, IL, USA). Descriptive statistics: means, standard deviations, median, range and percentages were calculated. Chi-square/Fisher’s exact test was used to test significance. For continuous variables, independent t-test analysis and two-way repeated measure ANOVA (RM-ANOVA) tests were used appropriately. The clinical and demographic factors with proven statistical significance from the univariate analyses were further included in multivariable logistic regression models. A significant 