Proportions of patients by elapsed time to surgery
| <24 hours | 24–35 hours | 36–47 hours | ≥48 hours | Chi-squared value | p-value | |
|---|---|---|---|---|---|---|
| Preoperative factors | ||||||
| Admitted from nursing care | 7.2% | 7.7% | 4.6% | 3.2% | 19.7 | 0.003 |
| Age >90 years | 24.9% | 26.5% | 25.6% | 22.3% | 2.5 | 0.478 |
| Men | 27.4% | 28.2% | 24.7% | 27.3% | 1.8 | 0.621 |
| American Society of Anesthesiologists' score, ≥3 | 51.1% | 56.1% | 53.2% | 57.7% | 8.3 | 0.040 |
| 4AT score, ≥4 (n=1,116) | 19.2% | 25.8% | 19.6% | 19.4% | 4.5 | 0.215 |
| Anticholinergic cognitive burden, ≥2 (n=529) | 12.0% | 10.5% | 7.3% | 2.7% | 3.8 | 0.282 |
| Postoperative outcomes | ||||||
| Failure to mobilise within 1 day of surgery | 10.2% | 10.3% | 9.8% | 8.3% | 1.4 | 0.695 |
| Hospital-acquired pressure ulcers | 3.1% | 3.8% | 3.4% | 4.0% | 1.6 | 0.657 |
| Mortality in hospital | 4.8% | 6.3% | 6.2% | 10.3% | 19.0 | <0.001 |
| LOS in hospital >19 days (top tertile) | 31.9% | 32.8% | 33.8% | 43.2% | 18.5 | <0.001 |
| Discharge destinations among patients who were admitted from their own home (n=3,077) | ||||||
| Returned back home | 60.5% | 59.0% | 60.9% | 54.8% | 3.7 | 0.294 |
| New discharge to rehabilitation | 25.1% | 26.1% | 23.8% | 26.1% | 0.9 | 0.808 |
| New discharge to residential or nursing care | 7.2% | 6.0% | 5.3% | 6.0% | 2.7 | 0.447 |
4AT = alertness, abbreviated mental test-4, attention and acute change or fluctuating course; LOS = length of stay.