Statistical analysis
The collected data were revised, coded, tabulated, and introduced to a personal computer using Statistical Package for Social Science (IBM Corp. Released 2017. IBM SPSS Statistics for Windows, Version 25.0. Armonk, NY: IBM Corp.). Student’s t-test was used to assess the statistical significance of the difference between the two study group means. The Mann–Whitney U test was used to assess the comparison between two nonparametric groups. The chi-square test was used to examine the relationship between two qualitative variables. Statistical significance was considered at p < 0.05 and a 95% confidence interval.