Multiple regression analysis for AHLOS (n=2233; R2=42.7%)
| Patient characteristic | eβ* | 95% CI* | Ρ value |
| Age, years | 1.01 | 1.00 to 1.01 | <0.001 |
| Sex, female | 1.01 | 0.94 to 1.09 | 0.79 |
| Recurrent stroke | 1.03 | 0.94 to 1.12 | 0.57 |
| Diabetes mellitus | 1.06 | 0.97 to 1.17 | 0.21 |
| Dementia | 1.28 | 1.12 to 1.46 | <0.001 |
| Hypercholesterolaemia | 0.94 | 0.85 to 1.05 | 0.27 |
| Myocardial infarction or ischaemic heart disease* | 1.00 | 0.92 to 1.09 | 0.98 |
| Previous cancer | 1.12 | 0.99 to 1.27 | 0.08 |
| COPD | 0.90 | 0.77 to 1.06 | 0.21 |
| Prestroke mRS score (reference 0) | <0.001 | ||
| 1 | 1.06 | 0.95 to 1.19 | 0.28 |
| 2 | 0.90 | 0.77 to 1.04 | 0.15 |
| 3 | 0.94 | 0.80 to 1.11 | 0.47 |
| 4 and 5 | 0.71 | 0.59 to 0.86 | <0.001 |
| Prestroke residence (reference independent living without formal care) | <0.001 | ||
| Independent living with formal care | 1.07 | 0.94 to 1.23 | 0.92 |
| Institution | 0.81 | 0.69 to 0.95 | 0.01 |
| Haemorrhagic stroke | 0.80 | 0.71 to 0.90 | <0.001 |
| Oxford Community Stroke Project Classification (reference LACS) | <0.001 | ||
| PACS | 1.30 | 1.18 to 1.42 | <0.001 |
| POCS | 1.34 | 1.18 to 1.53 | <0.001 |
| TACS | 1.29 | 1.13 to 1.48 | <0.001 |
| No brain lateralisation | 0.85 | 0.75 to 0.96 | 0.01 |
| Inpatient complication | 1.70 | 1.56 to 1.85 | <0.001 |
| Discharge mRS score (reference 0) | <0.001 | ||
| 1 | 1.15 | 1.01 to 1.31 | 0.04 |
| 2 | 1.74 | 1.50 to 2.04 | <0.001 |
| 3 | 2.70 | 2.32 to 3.13 | <0.001 |
| 4 | 3.51 | 2.98 to 4.14 | <0.001 |
| 5 | 5.07 | 4.19 to 6.14 | <0.001 |
| 6 | 1.24 | 1.05 to 1.48 | 0.01 |
| Winter admission | 1.15 | 1.08 to 1.24 | <0.001 |
| Weekend admission | 1.03 | 0.95 to 1.11 | 0.50 |
| Hospital (reference 1) | <0.001 | ||
| 2 | 2.09 | 1.38 to 3.17 | 0.001 |
| 3 | 1.07 | 0.94 to 1.22 | 0.29 |
| 4 | 1.08 | 0.90 to 1.31 | 0.40 |
| 5 | 0.78 | 0.69 to 0.87 | <0.001 |
| 6 | 0.93 | 0.81 to 1.07 | 0.33 |
| 7 | 1.15 | 1.00 to 1.32 | 0.05 |
| 8 | 0.82 | 0.70 to 0.94 | 0.01 |
*β estimates and 95% CIs were calculated for predicted log AHLOS. Prior to reporting they were transformed back to AHLOS through exponentiation and represent geometric mean AHLOS.
AHLOS, acute hospital length of stay; COPD, chronic obstructive pulmonary disorder; LACS, lacunar anterior circulation stroke; mRS, modified Rankin Scale; PACS, partial anterior circulation stroke; POCS, posterior circulation stroke; TACS, total anterior circulation stroke.