Proportions of patients identified with H1N1 influenza-related pneumonia according to the diagnostic prediction model
| Score* | 0 | 1 | 2 | 3 | 4 | 5 |
| Proportion with H1N1 pneumonia | 0/55 (0%) | 1/171 (0.6%) | 24/250 (9.6%) | 65/214 (30.3%) | 95/133 (71.4%) | 31/35 (88.6%) |
↵* One point for the presence of each of: age ≤65 years, white cell count ≤12×109/l, bilateral radiographic change, oriented in time/place/person and temperature ≥38°C.