Statistical analysis:
For our population characterization, continuous variables were presented as mean ± standard deviation (SD), and categorical variables were presented as frequency and percentages. In a univariable analysis we compared demographic, clinical and hospitalization characteristics between every two groups; surgical treatment (yes\no), admission duration (more and less than 20 days) and glucose levels (mean glucose ≥ 140, mean glucose ≤ 140). Parametric variables were compared using t-tests and categorical variables were compared with Chi-square or Fisher exact tests. Variables found to be nonparametric were compared using Mann-Whitney test.All p-values were based on a two-tailed test of significance, with a p-value<0.05 considered as significant. All statistical analyses were conducted using SPSS Version 25 (SPSS Inc., Chicago, IL)