Effect of a Website That Presents Patients’ Experiences on Self-Efficacy and Patient Competence of Colorectal Cancer Patients: Web-Based Randomized Controlled Trial

Jürgen M Giesler   ¹ , PhD ;   Bettina Keller   ² , MA, MPH ;   Tim Repke   ^{2, 3} , MSc ;   Rainer Leonhart   ⁴ , PhD ;   Joachim Weis   ⁵ , PhD ;   Rebecca Muckelbauer   ² , Dr oec troph ;   Nina Rieckmann   ² , PD, PhD ;   Jacqueline Müller-Nordhorn   ² , MD, DPH ;   Gabriele Lucius-Hoene   ⁴ , MD ;   Christine Holmberg   ² , MPH, PD, PhD

¹ Section of Health Services Research and Rehabilitation Research, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany

² Institute of Public Health, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany

³ Hasso-Plattner-Institute, Potsdam, Germany

⁴ Department of Psychology, University of Freiburg, Freiburg, Germany

⁵ Clinic for Oncological Rehabilitation, UKF Reha, Department of Psycho-Oncology, University Clinic Center, Freiburg, Germany