Time schedule | Interventions | Self-treatment group (intervention group) | Control group | ||
Subgroup 1 | Subgroup 2 | Subgroup 3 | Subgroup 4 | ||
Month 0 | Baseline measurement | × | × | × | × |
Month 1 | Self-management courses | × | × | × | × |
Month 1–12 | Self-treatment of exacerbations | × | × | – | – |
Month 2–7 | COPE-active: “compulsory” | × | – | × | – |
Month 7 | Measurement | × | × | × | × |
Month 8–12 | COPE-active: “voluntary” | × | – | × | – |
Month 12 | Measurement | × | × | × | × |