| Control | Mobile telephone | |
| Subjects | 46 | 43 |
| Unscheduled visits to the emergency dept | ||
| Patients | 9 (20)* | 2 (4.4) |
| Visits | 12 | 2 |
| Visits per patient | 0.267 | 0.044 |
| Hospitalisation | ||
| Patients | 1 (2.2) | 0 |
| Visits | 1 | 0 |
| Visits per patient | 0.022 | 0 |
| Respiratory failure | 0 | 0 |
| Mortality | 0 | 0 |
Data are presented as n or n (%). *: p<0.05 compared with corresponding mobile telephone group.