Table 2.
Sensitivity and specificity of RF for prediction of aetiology. The best performing biomarker was identified first; combinations with a second biomarker were explored with no substantial change in performance.
| no. features | features list | sensitivity | specificity |
|---|---|---|---|
| 3 | RR, HR, Osat | 0.50 | 0.86 |
| 4 | RR, HR, Osat + CRP | 0.64 | 0.88 |
| 4 | RR, HR, Osat + Lcn2 | 0.82 | 0.91 |
| 4 | RR, HR, Osat + Hap | 0.64 | 0.86 |
| 4 | RR, HR, Osat + CD163 | 0.46 | 0.91 |
| 5 | RR, HR, Osat + Lcn2 + CRP | 0.82 | 0.88 |
| 5 | RR, HR, Osat + Lcn2 + Hap | 0.82 | 0.91 |
| 5 | RR, HR, Osat + Lcn2 + CD163 | 0.82 | 0.89 |