Data analysis
REGRESSION
SPSS software version 22 was used to enter and save patient data. The data on the demographic and quantitative variables were summarized using absolute and relative frequency, mean, and standard deviation. The normality of the data was checked using the Kolmogorov–Smirnov test. The data were analyzed with the chi-square test, independent samples t-test, and repeated measures ANOVA. The impact of each independent variable on the outcome variables was assessed using multivariate linear regression analysis with a test power of 0.80 and a significance level of 0.05.