| Case Processing Summary | |||
|
| N | Marginal Percentage % | |
| Deaths (dependent variable) | Not | 737 | 61.1 |
| Yes | 470 | 38.9 | |
| ICU | Not | 978 | 81.0 |
| Yes | 229 | 19.0 | |
| Influenza vaccine | Yes | 264 | 21.9 |
| Not | 943 | 78.1 | |
| Total | 1207 |
| |