Table 4 Estimated length of stay with 95% confidence intervals by patient characteristics
| Â | Model 1 | Model 2 | ||
|---|---|---|---|---|
β (95% CI) | P value | β (95% CI) | P value | |
Sex | ||||
 Male | 1.00 |  | – | – |
 Female | 1.02 (0.97–1.07) | 0.515 | – | – |
Age group | ||||
 18–34 years | 0.79 (0.51–1.22) | 0.284 | 0.77 (0.51–1.19) | 0.243 |
 35–44 years | 0.80 (0.66–0.99) | 0.036 | 0.80 (0.65–0.98) | 0.034 |
 45–54 years | 0.84 (0.75–0.95) | 0.004 | 0.83 (0.74–0.93) | 0.001 |
 55–64 years | 0.85 (0.78–0.94) | 0.002 | 0.85 (0.77–0.93) | 0.001 |
 65–74 years | 0.90 (0.82–1.00) | 0.039 | 0.89 (0.81–0.98) | 0.020 |
 75–84 years | 0.92 (0.83–1.01) | 0.070 | 0.90 (0.82–0.99) | 0.025 |
 ≥ 85 years | 1.00 |  | 1.00 |  |
Stroke type | ||||
 Ischemic stroke | 1.00 |  | 1.00 |  |
 Hemorrhagic stroke | 1.19 (1.04–1.36) | 0.012 | 1.18 (1.03–1.35) | 0.019 |
Comorbidity category | ||||
 None | 1.00 |  | 1.00 |  |
 Moderate | 1.06 (1.00–1.12) | 0.055 | 1.06 (1.00–1.12) | 0.070 |
 Severe | 1.12 (1.02–1.24) | 0.018 | 1.14 (1.01–1.23) | 0.027 |
 Very severe | 1.09 (0.99–1.20) | 0.058 | 1.13 (1.03–1.23) | 0.013 |
Admission year | ||||
 2010 | 1.20 (1.04–1.37) | 0.011 | 1.20 (1.04–1.38) | 0.010 |
 2011 | 1.18 (1.04–1.34) | 0.012 | 1.18 (1.04–1.34) | 0.013 |
 2012 | 1.16 (1.03–1.31) | 0.016 | 1.15 (1.02–1.30) | 0.026 |
 2013 | 1.14 (1.01–1.29) | 0.038 | 1.13 (1.00–1.27) | 0.055 |
 2014 | 1.07 (0.94–1.22) | 0.307 | 1.07 (0.94–1.22) | 0.315 |
 2015 | 1.02 (0.95–1.23) | 0.258 | 1.06 (0.93–1.21) | 0.347 |
 2016 | 1.01 (0.90–1.15) | 0.793 | 1.02 (0.90–1.15) | 0.816 |
 2017 | 1.00 (0.87–1.13) | 0.916 | 1.00 (0.88–1.14) | 0.968 |
 2018 | 1.03 (0.91–1.16) | 0.667 | 1.02 (0.90–1.16) | 0.745 |
 2019 | 0.97 (0.86–1.10) | 0.658 | 0.97 (0.86–1.10) | 0.634 |
 2020 | 1.00 |  | 1.00 |  |
Payer, N (%) | ||||
 Urban employee basic medical | 1.01 (0.92–1.10) | 0.890 | – | – |
 Urban residence basic medical insurance | 0.94 (0.84–1.06) | 0.372 | – | – |
 Self-pay | 1.00 |  | – | – |
Season, N (%) | ||||
 Spring | 1.05 (0.97–1.13) | 0.235 | – | – |
 Summer | 1.04 (0.97–1.12) | 0.303 | – | – |
 Fall | 1.05 (0.97–1.13) | 0.232 | – | – |
 Winter | 1.00 |  | – | – |
Week, N (%) | ||||
 Weekend | 0.97 (0.91–1.03) | 0.272 | – | – |
 Weekday | 1.00 |  | – | – |