Table 2.
Top 20 most important features in septic shock prediction.
| No. | Feature |
|---|---|
| Development cohort and corresponding change in AUC ROC if removed | |
| 1 | SBP (0.062) |
| 2 | BUN (0.019) |
| 3 | Resp rate (0.012) |
| 4 | Temp (0.008) |
| 5 | ΔSBP (0.007) |
| 6 | Hct (0.007) |
| 7 | WBC (0.007) |
| 8 | Lactate (0.007) |
| 9 | Creatinine (0.007) |
| 10 | HR (0.006) |
| 11 | Calcium (0.004) |
| 12 | DBP (0.003) |
| 13 | Potassium (0.002) |
| 14 | O2 sat (0.001) |
| 15 | ΔO2 sat (0.001) |
| 16 | ΔTemp (0.001) |
| 17 | MAP (0.001) |
| 18 | Δetco2 (0.001) |
| 19 | ΔBase excess (0.001) |
| 20 | ΔHCO3 (0.001) |
|
| |
| Validation cohort | |
| 1 | SBP (0.049) |
| 2 | HR (0.015) |
| 3 | Temp (0.015) |
| 4 | BUN (0.013) |
| 5 | Hct (0.011) |
| 6 | Lactate (0.009) |
| 7 | Resp rate (0.005) |
| 8 | Bilirubin total (0.005) |
| 9 | Creatinine (0.003) |
| 10 | DBP (0.003) |
| 11 | Alkaline phos (0.003) |
| 12 | Magnesium (0.002) |
| 13 | Age (0.002) |
| 14 | Time in ED (0.002) |
| 15 | ΔSBP (0.001) |
| 16 | pH (0.001) |
| 17 | ΔBUN (0.001) |
| 18 | ΔWBC (0.001) |
| 19 | ΔFibrinogen (0.001) |
| 20 | Men (0.001) |
SBP, Systolic blood pressure; Resp,, respiratory; Temp, temperature; HR, pulse rate; DBP, diastolic blood pressure; O2 sat, oxygen saturation; ETCO2, end tidal carbon dioxide; HCO3, bicarbonate.
The numbers in parentheses show the amount of change in AUC if a feature is treated as missing in the model.