Statistical Methods
The statistical analyses were performed using R version 4.0.2 (2020-06-22, The R Foundation for Statistical Computing, https://www.R-project.org). Data are presented as medians, interquartile ranges (IQRs), and ranges, as the continuous variables were not normally distributed. Wilcoxon test was used to assess differences in continuous variables. For determining the risk effect of different exposures conditional logistic regression models were applied. The results are presented as odds ratios (OR) and 95% confidence intervals (CI).P value was considered significant when < 0.05.