Fig. 1

ROC curves of lactate kinetics at different timepoints for all-cause mortality. The lactate kinetics value at 6 h was 21%, and at 12 h, 24 h, 48 h, and 72 h, the lactate kinetics values were 40, 57, 66, and 72%, respectively. The area under the ROC curve of lactate kinetics at 6 h, 12 h, 24 h, 48 h, and 72 h for all-cause mortality were 0.684, 0.768, 0.818, 0.848, 0.831