Table 1. Risk assessment model from the patient safety in surgery study: Rogers Score.
| General risk factor | Specific risk factor | Risk score points |
|---|---|---|
| Operation type | Respiratory | 9 |
| Thoracoabdominal aneurysm | 7 | |
| Abdominal aneurysm | 4 | |
| Mouth, palate | 4 | |
| Stomach, small/large intestine | 4 | |
| Integument | 3 | |
| Hernia | 2 | |
| ASA | 3,4,5 | 2 |
| 2 | 1 | |
| Female sex | ||
| Work RVU | >17 | 3 |
| 10-17 | 2 | |
| 2 point conditions | Disseminated cancer | 2 |
| Chemotherapy within 30 d | 2 | |
| Preoperative serum sodium > 145 mmol/L | 2 | |
| Transfusion > 4 units packed RBCs in 72 h within operation | 2 | |
| Ventilator dependent | 2 | |
| One point conditions | Wound class 3 or 4 | 1 |
| Preoperative Hct < 38 | 1 | |
| Preoperative bili > 1.0 | 1 | |
| Dyspnea | 1 | |
| Albumin < 3.5 | 1 | |
| Emergency | 1 | |
| Zero point conditions | ASA class 1 | 0 |
| Work RVU < 10 | 0 | |
| Male sex | 0 |
Abbreviations: ASA, American Society of Anesthesiologists; Hct, hematocrit; RBCs, red blood cells; RVU, relative value update.