Cost components as proportion of total costs by year of follow-up and biologics use
| Patient group | Cost component | Year 1 (%) | Year 2 (%) | Year 3 (%) | Three-year total (%) |
|---|---|---|---|---|---|
| All patients (n=708) | Health practitioners | 15 | 11 | 10 | 12 |
| Medical workups | 5 | 4 | 3 | 4 | |
| Hospitalisations | 10 | 10 | 9 | 9 | |
| Biologics | 50 | 59 | 66 | 58 | |
| All drugs | 54 | 61 | 68 | 61 | |
| Productivity loss | 17 | 14 | 10 | 14 | |
| All costs excluding biologics | 50 | 41 | 34 | 42 | |
| Ever received a biologic (n=225) | Health practitioners | 8 | 7 | 5 | 7 |
| Medical acts | 4 | 2 | 2 | 3 | |
| Hospitalisations | 6 | 5 | 3 | 5 | |
| Biologics | 67 | 74 | 81 | 74 | |
| All drugs | 69 | 75 | 82 | 76 | |
| Productivity loss | 13 | 10 | 7 | 10 | |
| All costs excluding biologics | 33 | 26 | 19 | 26 | |
| Never received a biologic (n=483) | Health practitioners | 33 | 29 | 29 | 31 |
| Medical acts | 9 | 8 | 9 | 9 | |
| Hospitalisations | 22 | 26 | 32 | 26 | |
| Biologics | 0 | 0 | 0 | 0 | |
| All drugs | 8 | 7 | 8 | 7 | |
| Productivity loss | 28 | 29 | 22 | 27 | |
| All costs excluding biologics | 100 | 100 | 100 | 100 |