Management and outcome in patients with H1N1 influenza and other seasonal strains
| H1N1/09 | Other strains | p Value | |
| Oseltamivir | 384/472 (81%) | 42/77 (55%) | <0.001 |
| Zanamavir | 6/441 (1%) | 1/73 (1%) | 1.0 |
| Any antibiotics | 381/469 (81%) | 71/80 (89%) | 0.10 |
| Intensive-care-unit admission | 106/478 (22%) | 10/82 (12%) | 0.03 |
| Intensive-care-unit interventions | |||
| Extracorporeal membrane oxygenation | 4 (4%) | 0 | 1.0 |
| Mechanical ventilation | 72 (68%) | 7 (70%) | 1.0 |
| Non-invasive ventilation | 26 (25%) | 2 (20%) | 1.0 |
| Vasopressor | 53 (50%) | 5 (50%) | 1.0 |
| Hospital length of stay (IQR) | 5 days (2 to 10 days) | 4 days (2 to 9 days) | 0.44 |
| Hospital mortality | 26 (5%) | 0 | 0.02 |
| 30 day mortality | 30 (6%) | 3 (4%) | 0.35 |