Table 6.
Multivariate logistic regression analysis of death in the ED for all patients in 2019 and 2021 (elderly patients as a variable).
| Odds Ratio | 95%CI | p -Value | |||
| Year | |||||
| 2019 | Reference | ||||
| 2021 | 1.17 | 1.15 | – | 1.19 | <0.001 |
| Female (compared with male) | 0.76 | 0.73 | – | 0.79 | <0.001 |
| Month | |||||
| June | Reference | ||||
| January | 1.62 | 1.47 | – | 1.78 | <0.001 |
| February | 1.52 | 1.38 | – | 1.68 | <0.001 |
| March | 1.24 | 1.12 | – | 1.37 | <0.001 |
| April | 1.30 | 1.18 | – | 1.44 | <0.001 |
| May | 1.32 | 1.20 | – | 1.46 | <0.001 |
| July | 0.92 | 0.82 | – | 1.02 | 0.103 |
| August | 0.99 | 0.89 | – | 1.10 | 0.845 |
| September | 1.05 | 0.94 | – | 1.16 | 0.387 |
| October | 1.02 | 0.92 | – | 1.14 | 0.659 |
| November | 1.19 | 1.08 | – | 1.32 | 0.001 |
| December | 1.37 | 1.24 | – | 1.50 | <0.001 |
| Weekends (compared with weekdays) | 0.98 | 0.93 | – | 1.02 | 0.242 |
| Nighttime (17:00–09:00) (compared with daytime) | 1.60 | 1.54 | – | 1.66 | <0.001 |
| Old (compared with young <65 y) | 4.04 | 3.83 | – | 4.25 | <0.001 |
| COVID-19 (including suspected cases) | 0.25 | 0.19 | – | 0.32 | <0.001 |
| 2019 | |||||
| Odds ratio | 95% confidence interval | p-value | |||
| Female (compared with male) | 0.74 | 0.70 | – | 0.78 | <0.001 |
| Month | |||||
| June | Reference | ||||
| January | 1.54 | 1.35 | – | 1.76 | <0.001 |
| February | 1.51 | 1.31 | – | 1.73 | <0.001 |
| March | 1.27 | 1.10 | – | 1.47 | 0.001 |
| April | 1.17 | 1.01 | – | 1.35 | 0.039 |
| May | 1.06 | 0.91 | – | 1.23 | 0.446 |
| July | 0.88 | 0.76 | – | 1.03 | 0.115 |
| August | 0.85 | 0.73 | – | 0.99 | 0.041 |
| September | 1.02 | 0.87 | – | 1.18 | 0.821 |
| October | 0.99 | 0.85 | – | 1.16 | 0.938 |
| November | 1.17 | 1.01 | – | 1.35 | 0.038 |
| December | 1.32 | 1.15 | – | 1.52 | <0.001 |
| Weekends (compared with weekdays) | 0.94 | 0.88 | – | 1.00 | 0.046 |
| Nighttime (17:00–09:00) (compared with daytime) | 1.54 | 1.46 | – | 1.64 | <0.001 |
| Old (compared with young <65 y) | 4.03 | 3.74 | – | 4.34 | <0.001 |
| COVID-19 (including suspected cases) | (omitted) | ||||
| 2021 | |||||
| Odds ratio | 95% confidence interval | p-value | |||
| Female (compared with male) | 0.78 | 0.74 | – | 0.83 | <0.001 |
| Month | |||||
| June | Reference | ||||
| January | 1.68 | 1.48 | – | 1.91 | <0.001 |
| February | 1.54 | 1.34 | – | 1.76 | <0.001 |
| March | 1.21 | 1.06 | – | 1.39 | 0.006 |
| April | 1.42 | 1.24 | – | 1.63 | <0.001 |
| May | 1.59 | 1.38 | – | 1.82 | <0.001 |
| July | 0.94 | 0.82 | – | 1.09 | 0.432 |
| August | 1.12 | 0.97 | – | 1.29 | 0.11 |
| September | 1.07 | 0.93 | – | 1.24 | 0.345 |
| October | 1.05 | 0.91 | – | 1.21 | 0.512 |
| November | 1.22 | 1.06 | – | 1.40 | 0.005 |
| December | 1.41 | 1.24 | – | 1.61 | <0.001 |
| Weekends (compared with weekdays) | 1.00 | 0.95 | – | 1.06 | 0.974 |
| Nighttime (17:00–09:00) (compared with daytime) | 1.64 | 1.56 | – | 1.73 | <0.001 |
| Old (compared with young <65 y) | 4.05 | 3.77 | – | 4.34 | <0.001 |
| COVID-19 (including suspected cases) | 0.24 | 0.19 | 0.32 | <0.001 | |