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多重共线性检验
| Factor | Tolerance | VIF |
| APACHE: Acute Physiology and Chronic Health Evaluation; VIF: variance inflation factor. | ||
| Primary diagnosis requiring neurocritical care admission | 0.681 | 1.469 |
| Coma or lethargy | 0.631 | 1.584 |
| APACHE Ⅱ score | 0.798 | 1.254 |
