2.8. Statistical Analysis
After extracting the required data from the patients’ records, the data were analyzed using SPSS, version 18. In addition, descriptive data for continuous variables and qualitative statistics were reported as bar charts and tables. The mean difference test (independent t-test) was used to compare the patients. Moreover, Chi-square was utilized comparing both groups of studies for qualitative variables. P value less than of 0.05 was considered significant.