Significant variables in nomogram in the development cohort
| Predicting chance of developing anaemia | ||
| Estimate | P value | |
| Age (years) | 0.0372 | 0.0011 |
| Fasting blood glucose (mmol/L) | 0.1539 | 0.0044 |
| SIRS score on admission | 0.3392 | 0.0423 |
| GCS score | −0.1266 | 0.0009 |
| Aneurysm size (mm) | ||
| <10 | Reference | Reference |
| ≥10 | 0.7034 | 0.0964 |
| Baseline haemoglobin (g/L) | −0.1119 | <0.0001 |
| Open surgery* | 0.0432 | 0.0369 |
| Prothrombin time (s) | – | – |
| Open surgery* | 0.3846 | 0.0102 |
| Heart rate (per minute) | – | – |
| Treatment other than open surgery* | 0.0371 | 0.0172 |
| Open surgery | −4.9747 | 0.0960 |
| Constant | 7.1684 | 0.0015 |
Open surgery compared with endovascular or other treatment.
*Significant interaction terms.
GCS, Glasgow Coma Scale; SIRS, systemic inflammatory response syndrome.