[Usability and Efficiency of a Digital Communication Assistance Tool to Obtain Medical History from Non-German-Speaking Patients].

Aim: In the DICTUM-Friedland study, a medical history-taking app was implemented in an initial reception facility for refugees and asylum seekers. This app can be used to obtain from patients information about the most frequent general medical complaints and risk factors in 13 different languages or dialects. A report (synopsis) is generated, based on each patient's given data, in the German language. Usability and efficiency of obtaining medical history were the criteria evaluated in order to test and optimize the app for use in a broader general medical setting.

Methods: From May to December 2018, the app was tested in the waiting room of the general medical ward in the refugee camp in Friedland in southern Lower Saxony, Germany. Patients were asked to complete a short digital questionnaire about the usability of the app immediately after finishing the query. Sociodemographic data were partly collected with the same questionnaire and partly extracted from patient records. The efficiency was evaluated on the basis of the correspondence between the entered complaints (ICPC-2) and the diagnoses of the doctors (ICD-10).

Results: In total, the app was used 353 times, and based on these, 283 medical histories were taken. The median time for entering the complaints was 10:27 minutes. The use of the audio output (60% of patients used this option) did not influence the usability. The majority of the users (76%) rated the app as easy to use and 65% of the users stated that they were able to enter their main complaints. Both assessments were independent of the age and sex of the users, but the educational level had a slightly more positive influence. The efficiency test showed that 51% (n=144) of the synopses matched fully and 28% (n=79) of the synopses matched partially with the medical diagnoses.

Conclusion: The systematic survey of the most frequent general medical complaints enables a more precise medical history taking in patients with whom a normal interview is not possible due to language barriers. Thus it serves as a support for the medical history taking. The app is easy to use and not prone to the errors of online translations.