Long Term Follow up After 1 Year Initial Lifestyle Intervention

200 patients will undergo a 1 year intensive lifestyle intervention.This group will be randomised into an intervention group (n=100) and a control group (n=100). The intervention group will undergo four years of further follow up in accordance with the intervention model, which means two one weeks stays each year at the Evje Clinic, telephone follow up, self monitoring and collaboration with the patients' local physician. The control group will be followed up by the patients local physician and a yearly control at the Center for Morbid Obesity at Vestfold Hospital (Sykehuset i Vestfold HF). The purpose is to measure the effect of these two follow up models in regard to weight loss maintanance, Quality of Life and comorbidities.