Table 1.
Key parameters of the model
| • treatment episode consists of interventional treatment for every patient and a top-up treatment (additional treatment in case of complications, i.e. vein has not been occluded or obliterated) for a defined proportion of patients (i.e. treated vein is not occluded or obliterated) | |
| • maximum of two treatment episodes: initial interventional treatment for all patients and a second interventional treatment for a given proportion of patients with recurrent varicose veins | |
| • no difference of effectiveness between initial and secondary interventional treatment for each procedure | |
| • top-up treatment is always UGFS and has no influence on recurrence rates | |
| • constant hazard of recurrence | |
| • 6 month delay between onset of clinical recurrence and second treatment episode | |
| • conservative care is given to patients with recurrent varicose veins who do not undergo a second treatment episode as clinical recurrence is not considered clinically meaningful and to all patients with a second recurrence |