Using the Technology Acceptance Model to Explore User Experience, Intent to Use, and Use Behavior of a Patient Portal Among Older Adults With Multiple Chronic Conditions: Descriptive Qualitative Study

Jennifer Dickman Portz   ^{1, 2} , MSW, PhD ;   Elizabeth A Bayliss   ^{1, 3} , MD, MPH ;   Sheana Bull   ⁴ , PhD ;   Rebecca S Boxer   ¹ , MD ;   David B Bekelman   ^{2, 5} , MD ;   Kathy Gleason   ¹ , PhD ;   Sara Czaja   ^{6, 7} , PhD

¹ Institute for Health Research, Kaiser Permanente Colorado, Aurora, CO, United States

² Division of General Internal Medicine, School of Medicine, University of Colorado, Aurora, CO, United States

³ Department of Family Medicine, School of Medicine, University of Colorado, Aurora, CO, United States

⁴ mHealth Impact Lab, Colorado School of Public Health, University of Colorado, Aurora, CO, United States

⁵ Department of Medicine, Eastern Colorado Health Care System, Department of Veterans Affairs, Denver, CO, United States

⁶ Division of Geriatrics, Weill Cornell Medicine, New York, NY, United States

⁷ Center for Research and Education on Aging and Technology Enhancement, University of Miami, Miami, FL, United States