Table 5 Information of some numerical risk factors in SOMIP
| Name | Min. | Max. | Median | Mean |
|---|---|---|---|---|
| Age | 1 | 106 | 66 | 62.9 |
| Alb_num | 2 | 56 | 35 | 34.41 |
| Alk_num | 7 | 2173 | 75 | 93.37 |
| Urea_num | 0.1 | 69.9 | 5.6 | 7.479 |
| Base_num | -32 | 23.9 | − 1.1 | − 1.788 |
| WBC_num | 0.2 | 91.2 | 11.13 | 12.17 |
| Pulse_num | 10 | 985 | 88 | 89.21 |
| PCO2_num | 0.89 | 13.99 | 4.63 | 4.717 |
| Sodium_num | 104 | 167 | 137.1 | 137.1 |
| Max complexity score | 0 | 79 | 23 | 23.93 |