2.1 Statistical analyses
The collected data was entered and analyzed through the data collection
form in SPSS software version 20. For descriptive analysis, mean and
standard deviation will be used for quantitative variables and frequency
and frequency percentage will be used for qualitative variables. To
evaluate the effect of each variable as a univariate test, independent
two-sample t-test, one-way ANOVA and chi-square will be performed for
quantitative and qualitative factors, respectively. Also, the study of
the effect of variables is multivariate modeled using logistic
regression model and significance is considered at the level of 0.05.
The Mann–Whitney U test was utilized to compare significant differences
among continuous data. All statistical tests were two tailed, and the p
value less than 0.05 was considered statistically significant.