Statistical Analysis
All statistical analyses were performed using Statistical Package for Social Sciences volume 22.0 (IBM Corp.; IL, Chicago, USA). Non-parametric tests were used for parameters that have been shown difference from the normal distribution. The parameters with normal distribution was analyzed by parametric tests. The variables with continuous normally distributed were expressed as mean ± SD. The categorical variables were presented as percentage and the variables without normally distributed were expressed as median and interquartile ranges (IQRs).