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Fig. 5 | BMC Infectious Diseases

Fig. 5

From: Predicting progression to severe COVID-19 using the PAINT score

Fig. 5

Nomogram, calibration curve, decision curves and clinical impact curves for progression from mild/moderate to severe disease. a Nomogram. To use the nomogram, the value of an individual patient is located on each variable axis, and a line is drawn upward to determine the number of points received for each variable value. The sum of these numbers is located on the total point axis, and a line is drawn downward to the survival axes to determine the likelihood of 28-day progression to severe disease. b Calibration. The nomogram-predicted probability of nonsevere survival is plotted on the x-axis, and that of actual nonsevere survival is plotted on the y-axis. c Decision curve. The abscissa of this graph is the threshold probability, and the ordinate is the net benefit. d Clinical impact curve. The red curve (number of high-risk individuals) indicates the number of people who are classified as positive (high risk) by the model at each threshold probability; the blue curve (number of high-risk individuals with outcome) is the number of true positives at each threshold probability

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