Outcomes: Cost-utility analysis
EVENTS, PND
A The horizon time will depend on the results obtained on the main criteria (1 year). If the study confirms the non-inferiority of TT versus TT + PND in terms of oncologic events, a horizon time of 1 year following the initial surgery will be considered.Consequence will be expressed in QALYs (quality-adjusted life years). Utility score will be assessed using the EQ-5D questionnaire at baseline, 1, 3, and 5 years. QALY will be calculated by multiplying the length of time between two questionnaires by utility score.Costs will be evaluated from the French collective perspective. Resources consumed by the patient’s management in each strategy will be collected prospectively at baseline, 1, 3, and 5 years.