Statistical analysis
REGRESSION
The SPSS 26.0 statistical program was utilized for processing and analysis. The Chi-square test or Fisher's exact test is utilized to evaluate categorical data between treatment groups. Continuous variables are presented as means (with standard deviations (SD)) or medians (with inter quartile ranges (IQR)) and compared across groups using the independent t-test for normally distributed data or the Wilcoxon rank sum test for non-normal data. Multivariate analysis was performed using logistic regression. The receiver operating characteristic (ROC) curve was drawn using MEDCALC 15.2.2 software to evaluate the predictive value of CRRT at 2 h after FST. The area under curve (AUC) indicates the predictive value and calculates the sensitivity and specificity of the optimal cut-off value. The 