Adherence to Patient-Reported Symptom Monitoring and Subsequent Clinical Interventions for Patients With Multiple Myeloma in Outpatient Care: Longitudinal Observational Study

Jens Lehmann   ^{1, 2} , PhD ;   Kelly M de Ligt   ³ , PhD ;   Stefanie Tipelius   ² , BSc ;   Johannes M Giesinger   ¹ , PhD ;   Monika Sztankay   ¹ , PhD ;   Sandra Voigt   ^{2, 4} , DGKP ;   Lonneke V van de Poll-Franse   ^{3, 5, 6} , PhD ;   Gerhard Rumpold   ^{1, 7} , PhD ;   Roman Weger   ² , Mag ;   Ella Willenbacher   ⁴ , PhD ;   Wolfgang Willenbacher   ^{2, 4} , PhD ;   Bernhard Holzner   ^{1, 7} , PhD

¹ University Hospital of Psychiatry II, Medical University of Innsbruck, Innsbruck, Austria

² Syndena GmbH, Innsbruck, Austria

³ Department of Psychosocial Research and Epidemiology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands

⁴ Internal Medicine V: Hematology and Oncology, Medical University of Innsbruck, Innsbruck, Austria

⁵ Department of Research and Development, Netherlands Comprehensive Cancer Organisation, Utrecht, The Netherlands

⁶ Department of Medical and Clinical Psychology, Center of Research on Psychological and Somatic Disorders (CoRPS), Tilburg University, Tilburg, The Netherlands

⁷ Evaluation Software Development GmbH, Innsbruck, Austria