Effects per patient per year of patients with COPD receiving a self-management programme with and without self-treatment
| Self-treatment(n = 70) | Control(n = 72) | Difference | |
| Number of exacerbation days | 42.20 | 64.50 | −22.30 |
| Number of hospitalisations | 0.200 | 0.334 | −0.134 |
| Number of health care contacts* | 5.373 | 6.513 | −1.140 |
*Includes (telephone) consultations with the physician and general practitioner, and emergency room visits.