Fig. 4

Receiver operating characteristic curves for Q-CRT, qSOFA, SIRS, and lactate level for predicting sepsis. The area under the receiver operating characteristic curve for Q-CRT is 0.71 (95% CI 0.62–0.83), that for the qSOFA score is 0.83 (95% CI 0.72–0.90), that for the SIRS score is 0.61 (95% CI 0.49–0.72), and that for the lactate level is 0.76 (95% CI 0.65–0.85). CI, confidence interval; Q-CRT, quantitative capillary refill time; qSOFA, quick sequential organ failure assessment; SIRS, systemic inflammatory response syndrome