Correction to: Journal of Intensive Care (2022) 10:1-8 https://doi.org/10.1186/s40560-022-00616-5

Following the publication of the original article [1], it was noted that due to a typesetting error the Fig. 2 was not the updated version. The correct figure is given below. The original article [1] has been updated.

Fig. 2
figure 2

Calibration plot. Left: X-axis: predicted probability, Y-axis: observed probability, Circle: each score. Right: predicted and observed probability for in-hospital mortality by groups. Low risk: 0–3 points, mild: 4 points, moderate: 5 points, high risk: 6–9 points