Figure 8

Receiver operating characteristic curves (ROC) of the two predictive models. Receiver operating characteristic curves (ROC) of the two models, which were tested for accurately predicting weaning outcome. Model 2 (including RSBI, RSBI* P_0.1, SampEn and LLE of mean inspiratory flow) performed better, compared with model 1 of conventional indices (RSBI, P_0.1 and RSBI* P_0.1).