Development and usability test in a primary care centre of an app for the needle exchange programs

Introduction
Usability tests are essentials before to offer to general population health apps. Needle Exchange Programs needs new interventions to improve its results.
Objective
Analyse the process of development and test of usability of a mobile device application designed to complement the Needle Exchange Program.
Methods
A transversal and observational design was conducted in a Primary Care Centre and in a street drug-consumption zone, both in the city of Girona.
Main measures: Sex, age and personal use of ICT was compared with the acceptance of the app. Central tendency and dispersion measures, U-Mann Whitney test and cross tables was used for the statistical analysis.
A literature review of mHealth and drug dependence was developed and a usability test for each target group was performed.
Results
Participants were 13 members of a multidisciplinary medical team and 9 people who inject drugs. No differences were found between the analysed variables and the opinion of the app. Participants proposed improvements about the prototype that will be apply in the definitive interface.
Conclusion
Professionals and potential users share similar opinion about the app and its uses. The participation of professionals and patients in usability test of mobile applications facilitates the detection of particular needs.