Table 2.
Results Stage 1: negative binomial models for length of stay per team category
| HASUs (1) | RATs (2) | NRATs (3) | NAITs (4) | |
| Previous mRS score, ref. group: mRS=2 | ||||
| Previous mRS=0 or previous mRS=1 | – | – | 1.012 | 1.096* |
| – | – | 0.043 | 0.052 | |
| Previous mRS=3 | – | – | 1.145*** | 1.121*** |
| – | – | 0.038 | 0.040 | |
| Previous mRS=4 | – | – | 1.467*** | 1.337*** |
| – | – | 0.047 | 0.043 | |
| Previous mRS=5 | – | – | 1.655*** | 1.620*** |
| – | – | 0.061 | 0.059 | |
| Severity of stroke, ref. group: mild (NIHSS<5) | ||||
| Moderate (NIHSS 5–14) | 1.132*** | 1.533*** | 1.206*** | 1.184*** |
| 0.015 | 0.012 | 0.026 | 0.024 | |
| Severe (NIHSS 15–20) | 1.189*** | 1.823*** | 1.402*** | 1.276*** |
| 0.026 | 0.021 | 0.041 | 0.033 | |
| Very severe (NIHSS>20) | 1.221*** | 1.838*** | 1.427*** | 1.292*** |
| 0.029 | 0.022 | 0.047 | 0.037 | |
| Intracerebral haemorrhage | 1.081*** | 1.195*** | 1.098*** | 1.032 |
| 0.022 | 0.012 | 0.025 | 0.022 | |
| Need for therapy | ||||
| Need for occupational therapy (n_OT) | 1.779*** | 2.306*** | 2.083*** | 1.695*** |
| 0.040 | 0.029 | 0.078 | 0.114 | |
| Need for physiotherapy (n_PT) | 1.762*** | 1.754*** | 1.720*** | 1.691*** |
| 0.046 | 0.025 | 0.075 | 0.115 | |
| Need for speech and language therapy (n_SALT) | 1.456*** | 2.121*** | 1.778*** | 1.336*** |
| 0.025 | 0.019 | 0.040 | 0.026 | |
| Need for psychological therapy (n_PSY) |
1.613*** | 2.315*** | 1.920*** | 1.395*** |
| 0.066 | 0.038 | 0.049 | 0.037 | |
| Amount of therapy | ||||
| n_OT x OT average daily minutes | 0.985*** | 0.977*** | 0.986*** | 0.986*** |
| 0.000 | 0.000 | 0.001 | 0.001 | |
| n_PT x PT average daily minutes | 0.988*** | 0.995*** | 0.996*** | 1.001 |
| 0.001 | 0.000 | 0.001 | 0.001 | |
| n_SALT x SALT average daily minutes | 0.986*** | 0.970*** | 0.983*** | 0.994*** |
| 0.001 | 0.001 | 0.001 | 0.001 | |
| n_PSY x PSY average daily minutes | 0.986*** | 0.951*** | 0.973*** | 0.977*** |
| 0.002 | 0.004 | 0.003 | 0.006 | |
| Order of team in patient pathway | – | 1.381*** | 1.057*** | 1.059* |
| – | 0.027 | 0.020 | 0.032 | |
| Transferred from a HASU to another inpatient stroke unit |
1.354 | 0.944 | 0.816*** | 0.758** |
| 0.262 | 0.071 | 0.020 | 0.086 | |
| Deceased | 1.418*** | 0.830*** | 0.810*** | 0.765*** |
| 0.049 | 0.009 | 0.024 | 0.044 | |
| Transferred to another inpatient stroke unit | 1.197*** | 1.070*** | 0.661*** | 0.670*** |
| 0.017 | 0.011 | 0.016 | 0.031 | |
| Constant | 1.828*** | 2.512*** | 4.376*** | 8.768*** |
| 0.051 | 0.066 | 0.291 | 0.940 | |
| N | 14 720 | 112 339 | 11 693 | 6644 |
| Alpha (dispersion) | 0.128*** | 0.582*** | 0.494*** | 0.338*** |
| Adj. Deviance R^2 | 0.452 | 0.481 | 0.471 | 0.331 |
Exponentiated coefficients (IRR); Standard errors in second row.
Team deviations not shown. *p<0.10, **p<0.05, ***p<0.01. Additional covariates not included in the table for presentation purposes: age, sex, ethnicity, social deprivation and stroke related co-morbidities.
HASUs, hyper-acute stroke units; mRS, modified Rankin Scale; NAITs, Non-Acute Inpatient Teams; NIHSS, National Institutes of Health Stroke Scale; NRATs, Non-Routinely admitting Acute Teams; NB, negative binomial; RATs, Routinely Admitting Teams.