Quality of Life in Patients With Multiple Myeloma-validation Study

Validation of the Myeloma Patient Outcome Scale (MyPOS) Assessing the Quality of Life in Patients With Multiple Myeloma in the German Speaking Part of Switzerland

In this study, the Myeloma Patient Outcome Scale (MyPOS) will be translated from English to German. This translated version will be quantitatively and qualitatively validated with patients with multiple myeloma.

Patients with multiple myeloma (N=10) will be interviewed in the qualitative phase about their comprehension of the translated MyPOS. The questionnaire will be revised according to the results of the interviews. This culturally adapted Swiss-German MyPOS will be assessed in the quantitative phase for its' psychometric properties with 200 patients with multiple myeloma.

Inclusion Criteria:

• informed consent as documented by signature
• confirmed histological diagnosis of multiple myeloma,
• age ≥ 18 years,
• mental capacity to give written informed consent

Exclusion Criteria:

• inability to communicate in German
• participation in another clinical study
• more than one cancer diagnosis
• mental illness (i.e. psychiatric diagnosis)