The predictive of Th17/Treg ratio, SOFA score, APACHE II score on length of ICU stay
The limited data suggested the ratio of Th17/Treg predicted the length of septic patient ICU stay. The area under the ROC curve(AUC)of the Th17/Treg ratio, SOFA score and APACHE II score was 0.747(95%CI: 0.618-0.850), 0.764(95%CI: 0.637-0.864) and 0.760(95%CI: 0.6333-0.861) respectively for ICU stay more than 14 days. Combined either SOFA score or APACHE Ⅱ score with the ratio of Th17 / Treg, although there is no statistically difference each other, but its AUC of predictive value on the length of sepsis patients’ ICU stay is higher, with AUC value of 0.782 (95% CI: 0.656-0.878) or 0.800 (95% CI: 0.676-0.892). The sensitivity and specificity for predicting ICU stay based on cut-off values are shown in Figure 3.