JOURNAL OF MEDICAL INTERNET RESEARCH Bidmon et al Original Paper What Explains Usage of Mobile Physician-Rating Apps? Results From a Web-Based Questionnaire Sonja Bidmon, PhD; Ralf Terlutter, PhD; Johanna Röttl, MSc Department of Marketing and International Management, Alpen-Adria Universitaet Klagenfurt, Klagenfurt am Woerthersee, Austria Corresponding Author: Sonja Bidmon, PhD Department of Marketing and International Management Alpen-Adria Universitaet Klagenfurt Universitaetsstrasse 65-67 Klagenfurt am Woerthersee, 9020 Austria Phone: 43 463 2700 ext 4048 Fax: 43 463 2700 994048 Email:
[email protected] Abstract Background: Consumers are increasingly accessing health-related information via mobile devices. Recently, several apps to rate and locate physicians have been released in the United States and Germany. However, knowledge about what kinds of variables explain usage of mobile physician-rating apps is still lacking. Objective: This study analyzes factors influencing the adoption of and willingness to pay for mobile physician-rating apps. A structural equation model was developed based on the Technology Acceptance Model and the literature on health-related information searches and usage of mobile apps. Relationships in the model were analyzed for moderating effects of physician-rating website (PRW) usage. Methods: A total of 1006 randomly selected German patients who had visited a general practitioner at least once in the 3 months before the beginning of the survey were randomly selected and surveyed. A total of 958 usable questionnaires