5.1. Statistical Analysis
REGRESSION
Descriptive statistics were used to describe data. The continuous variables are presented by mean ± standard deviation, while the categorical variables are presented by count (percentage).The comparison between independent variables, which distributions were approximately the same as a normal distribution, we were done by the The relationship between variables for each group was analyzed separately by Pearson's correlations. The relationship between the two variables was analyzed by controlling the third variable using partial correlation. The partial correlation coefficient measures the strength of the linear relationship between two variables after entirely controlling for the effects of other variables. The logistic regression was performed for changes in a specific outcome.The level of statistical significance was set at a two-tailed alpha level of 0.05. RStudio (version 1.4.1106) was used for statistical analysis.