Usability of Electronic Patient-Reported Outcome Measures for Older Patients With Cancer: Secondary Analysis of Data from an Observational Single Center Study

David Riedl   ^{1, 2 *} , PhD ;   Jens Lehmann   ^{2 *} , PhD ;   Maria Rothmund   ^{2, 3} , MSc ;   Daniel Dejaco   ⁴ , MD, PD ;   Vincent Grote   ¹ , PhD ;   Michael J Fischer   ^{1, 5} , MD, PhD ;   Gerhard Rumpold   ^{2, 6} , PhD ;   Bernhard Holzner   ^{6, 7} , PhD ;   Thomas Licht   ^{1, 8, 9} , MD, PhD

¹ Ludwig Boltzmann Institute for Rehabilitation Research, Vienna, Austria

² University Hospital of Psychiatry II, Department of Psychiatry, Psychotherapy Psychosomatics and Medical Psychology, Medical University of Innsbruck, Innsbruck, Austria

³ Institute of Psychology, University of Innsbruck, Innsbruck, Austria

⁴ Department for Otorhinolaryngology, Head and Neck Surgery, Medical University of Innsbruck, Innsbruck, Austria

⁵ Vamed Rehabilitation Center Kitzbühel, Kitzbühel, Austria

⁶ Evaluation Software Development (ESD), Innsbruck, Austria

⁷ University Hospital of Psychiatry I, Department of Psychiatry, Psychotherapy Psychosomatics and Medical Psychology, Medical University of Innsbruck, Innsbruck, Austria

⁸ Oncological Rehabilitation Center, Sankt Veit im Pongau, Austria

⁹ Paracelsus Medical University, Salzburg, Austria

*these authors contributed equally