Health Status of US Patients With One or More Health Conditions: Using a Novel Electronic Patient-reported Outcome Measure Producing Single Metric Measures.

"P.F.M.K. developed the patient-reported outcome measure, the preference-based measurement model, and the mobile applications presented in this paper, and uses them as extensions of academic and commercial activities. These activities adhere to the policies of Medical Care on sharing data and materials. X.Z. is employed by the Chinese Scholarship Council (CSC) and the University Medical Center Groningen (UMCG). K.M.V. declares no conflict of interest."

"Financial support for this study was provided by a PhD grant sponsored by the Chinese Scholarship Council (CSC) and University Medical Center Groningen (UMCG). X.Z. is employed by the sponsors. The funding agreement ensured the authors’ independence in designing the study, interpreting the data, writing, and publishing the report."