Table 1.
Eighty seven features used in models with description and applied maximum possible values as defined by domain experts. The 45 features used in the reduced feature set are indicated with an*.
| Feature Name(s) | Description | # Features; # Features in Reduced Feature Set | Maximum Possible Absolute Value (if applicable) |
|---|---|---|---|
| COLLOID_ML* | Total Colloid Transfused (ml) | 1; 1 | - |
| CRYSTALLOID_ML* | Total Crystalloid Transfused (ml) | 1; 1 | - |
| DBP MAX*, MIN*, AVG, MED, STD | Maximum, Minimum, Average, Median, and Standard Deviation Diastolic Blood Pressure for the case (mmHg) | 5; 2 | 150 |
| DBP_10min MAX, MIN, AVG, MED, STD | Maximum, Minimum, Average, Median, and Standard Deviation Diastolic Blood Pressure for the last 10 minutes of the case (mmHg) | 5; 0 | 150 |
| EBL* | Total Estimated Blood Loss (ml) | 1; 1 | - |
| EPHEDRINE BOLUS* | Total bolus dose of Ephedrine (mg) during the case | 1; 1 | - |
| EPINEPHRINE BOLUS*, END RATE*, MAX RATE* | Total bolus dose (mcg), End of case infusion rate (mcg/kg/min), and Highest infusion rate (mcg/kg/min) of Epinephrine during the case | 3; 3 | - |
| ESMOLOL BOLUS*, END RATE*, MAX RATE* | Total bolus dose (mg), End of case infusion rate (mcg/kg/min), and Highest Infusion rate (mcg/kg/min) of Esmolol during the case | 3; 3 | - |
| HR MAX*, MIN*, AVG, MED, STD | Maximum, Minimum, Average, Median, and Standard Deviation Heart Rate (bpm) for the case | 5; 2 | 180 |
| HR_10min MAX, MIN, AVG, MED, STD | Maximum, Minimum, Average, Median, and Standard Deviation Heart Rate (bpm) for the last 10 minutes of the case | 5; 0 | 180 |
| INVASIVE_LINE_YN* | Invasive Central venous, arterial, or Pulmonary Arterial Line used for the case (Yes/No) | 1; 1 | - |
| MAP MAX*, MIN*, AVG, MED, STD | Maximum, Minimum, Average, Median, and Standard Deviation Mean Blood Pressure (mmHg) for the case | 5; 2 | 300 |
| MAP_10min MAX, MIN, AVG, MED, STD | Maximum, Minimum, Average, Median, and Standard Deviation Mean Blood Pressure (mmHg) for the last 10 minutes of the case | 5; 0 | 300 |
| DES MAX* | Maximum Minimum alveolar concentration of desflurane during the case (note this is not age adjusted) | 1; 1 | 12 |
| GLUCOSE MAX*, MIN* | Maximum and Minimum plasma Glucose concentration for the Case (mg/dl) | 2; 2 | 400 |
| ISO MAX* | Maximum Minimum alveolar concentration of isoflurane during the case (note this is not age adjusted) | 1; 1 | 12 |
| SEVO MAX* | Maximum Minimum alveolar concentration of sevoflurane during the case (note this is not age adjusted) | 1; 1 | 10 |
| MILRINONE END RATE*, MAX RATE* | End of case Infusion Rate and Highest Infusion rate of Milrinone during the case (mcg/kg/min) | 2; 2 | - |
| HGB MIN* | Minimum Hemoglobin concentration (g/dl) during the case | 1; 1 | 15 |
| MINUTES MAP < 50 | Cumulative minutes with mean arterial pressure <50 mmHg (min) | 1; 0 | - |
| MINUTES MAP < 60 | Cumulative minutes with mean arterial pressure < 60 mmHg (min) | 1; 0 | - |
| NICARDIPINE END RATE*, MAX RATE* | End of case infusion Rate and Highest Infusion Rate of Nicardipine during the case (mg/hr) | 2; 2 | - |
| NITRIC_OXIDE_YN* | Nitric Oxide Used for the Case (Yes/No) | 1; 1 | - |
| NITROGLYCERIN BOLUS*, END RATE*, MAX RATE* | Total bolus dose (mcg), End of case infusion rate (mcg/min), and Highest Infusion rate (mcg/min) of Nitroglycerin during the case | 3; 3 | - |
| NITROPRUSSIDE END RATE*, MAX RATE* | End of case infusion Rate and Highest Infusion Rate of Nitroprusside (mcg/kg/min) during the case | 2; 2 | - |
| PHENYLEPHRINE BOLUS*, END RATE*, MAX RATE* | Total bolus dose (mcg), End of case infusion rate (mcg/min), and Highest Infusion rate (mcg/min) of Phenylephrine during the case | 3; 3 | - |
| SBP MAX*, MIN*, AVG, MED, STD | Maximum, Minimum, Average, Median, and Standard Deviation Systolic blood pressure (mmHg) for the case | 5; 2 | 300 |
| SBP_10min MAX, MIN, AVG, MED, STD | Maximum, Minimum, Average, Median, and Standard Deviation Systolic blood pressure (mmHg) for the last 10 minutes of the case | 5; 0 | 300 |
| SpO2 MAX*, MIN*, AVG, MED, STD | Maximum, Minimum, Average, Median, and Standard Deviation SpO2 (%) for the case | 5; 2 | 100 |
| SpO2_10min MAX, MIN, AVG, MED, STD | Maximum, Minimum, Average, Median, and Standard Deviation SpO2 (%) for the last 10 minutes of the case | 5; 0 | 100 |
| UOP* | Total Urine Output (ml) | 1; 1 | - |
| VASOPRESSIN BOLUS*, END RATE*, MAX RATE* | Total bolus dose (units), End of case infusion rate (units/hr), and Highest Infusion rate (units/hr) of Vasopressin during the case | 3; 3 | - |
| XFUSION_RBC_ML* | Total Red Blood Cells Transfused (ml) | 1; 1 | - |
|
| |||
| Total # Features | 87; 45 | ||