Validation of the German version of the patient activation measure 13 (PAM13-D) in an international multicentre study of primary care patients

Katja Brenk-Franz, Judith H Hibbard, Wolfram J Herrmann, Tobias Freund, Joachim Szecsenyi, Sima Djalali, Claudia Steurer-Stey, Andreas Sönnichsen, Fabian Tiesler, Monika Storch, Nico Schneider, Jochen Gensichen, Katja Brenk-Franz, Judith H Hibbard, Wolfram J Herrmann, Tobias Freund, Joachim Szecsenyi, Sima Djalali, Claudia Steurer-Stey, Andreas Sönnichsen, Fabian Tiesler, Monika Storch, Nico Schneider, Jochen Gensichen

Abstract

The patients' active participation in their medical care is important for patients with chronic diseases. Measurements of patient activation are needed for studies and in clinical practice. This study aims to validate the Patient Activation Measure 13 (PAM13-D) in German-speaking primary care patients. This international cross-sectional multicentre study enrolled consecutively patients from primary care practices in three German-speaking countries: Germany, Austria, and Switzerland. Patients completed the PAM13-D questionnaire. General Self-Efficacy scale (GSE) was used to assess convergent validity. Furthermore Cronbach's alpha was performed to assess internal consistency. Exploratory factor analysis was used to evaluate the underlying factor structure of the items. We included 508 patients from 16 primary care practices in the final analysis. Results were internally consistent, with a Cronbach's alpha of 0.84. Factor analysis revealed one major underlying factor. The mean values of the PAM13-D correlated significantly (r = 0.43) with those of the GSE. The German PAM13 is a reliable and valid measure of patient activation. Thus, it may be useful in primary care clinical practice and research.

Conflict of interest statement

Competing Interests: Judith Hibbard is stakeholder in insignia health and a consultant to them. And the Institute of General Practice and Family Medicine Jena (Germany) have the licence for translating the Patient Activation Measure in the German speaking Countries. This license is not associated with money. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.

Figures

Figure 1. Screenplot of the PCA.
Figure 1. Screenplot of the PCA.

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