Statistical methods
Statistical Package for the Social Sciences version 26(SPSS 26.0,IBM Corp, Armonk, New York, USA) was used for data analysis. Before starting the analysis, the continuous variable were tested for normality (Shapiro-Wilk test) and homogeneity of variance test (Levene’s test). The result shows that all continuous variables do not conform to normal distribution or homogeneity of variance. Kruskal-Wallis test was applied as parametric tests for comparison of data. A p value less than 0.05 was considered statistical significance. Frequency distribution is given for categorical variables and discrete variables, expressed as a percentage. Chi-square test were applied for categorical variables and discrete variables with 95% confidence level.