Table 6 Performance of Random Forest Predictors at the optimal operating point.

From: Machine learning based predictors for COVID-19 disease severity

Model

Sensitivity

Specificity

PPV

NPV

ICU (w. lab markers)

0.73 (0.63, 0.83)

0.74 (0.67, 0.81)

0.60 (0.50, 0.70)

0.84 (0.77, 0.90)

ICU (no lab markers)

0.64 (0.53, 0.74)

0.64 (0.56, 0.72)

0.48 (0.39, 0.58)

0.77 (0.69, 0.84)

ICU (five features)

0.70 (0.60, 0.81)

0.70 (0.63, 0.78)

0.56 (0.46, 0.66)

0.82 (0.75, 0.88)

Ventilation (w. lab markers)

0.72 (0.60, 0.85)

0.73 (0.67, 0.80)

0.44 (0.33, 0.55)

0.90 (0.85, 0.95)

Ventilation (no lab markers)

0.60 (0.46, 0.74)

0.61 (0.53, 0.68)

0.30 (0.21, 0.39)

0.84 (0.77, 0.91)

Ventilation (five features)

0.74 (0.62, 0.87)

0.75 (0.68, 0.81)

0.45 (0.34, 0.57)

0.91 (0.86, 0.96)

  1. We report Sensitivity, Specificity, Positive Predictive Value (PPV), and Negative Predictive Value (NPV). Numbers in parenthesis are the 95% confidence interval.