Updating the EORTC Quality-of-Life Questionnaire for Ovarian Cancer (QLQ-OV38)

The goal of this observational study is to pre-test the EORTC QLQ-OV39 to identify and resolve potential problems in its administration and to identify missing/redundant items. A preliminary evaluation of the measurement properties of the module will be carried out. The study includes patients with evidence of localized (FIGO I-II) or advanced ovarian cancer (FIGO II-IV) above the age of 18 years. The main aims are: 1. To conduct Phase 3a and 3b pre-testing of the preliminary EORTC-QLQ-OV39 Questionnaire to identify and resolve potential problems in its administration and to identify missing/redundant items according to the updated EORTC QLG Guidelines for Module Development, 5th Edition 2021.(16) 2. a preliminary assessment of the psychometric properties of the module Participants will \[describe the main tasks participants will be asked to, complete the OV39, C30 and debriefing interviews, as well as questions about their demographics and clinical data.

Inclusion Criteria: 1. Evidence of localized (FIGO I-II) or advanced ovarian cancer (FIGO II-IV) 2. Must be able and willing to complete the questionnaires. 3. Must be able to understand and speak the language in which the patient will complete the questionnaire. 4. Age \> 18 years Exclusion Criteria: * cognitive impairment