Accepted for/Published in: JMIR Human Factors
Date Submitted: Apr 6, 2023
Date Accepted: Sep 2, 2023
Warning: This is an author submission that is not peer-reviewed or edited. Preprints - unless they show as "accepted" - should not be relied on to guide clinical practice or health-related behavior and should not be reported in news media as established information.
Usability and Overall Perception of a Health Bot for Nutrition Related Questions for Bariatric Patients: A Mixed Method Approach
ABSTRACT
Background:
Currently, more than 4’000 bariatric procedures are performed annually in Switzerland. Nutrition knowledge is necessary in patients for a desirable outcome. To potentially provide them with knowledge between nutrition consultations, a health bot (HB) was created. The HB can answer bariatric nutrition questions in writing This study aimed to evaluate the HB for its usability and perception among bariatric patients. based on artificial intelligence.
Objective:
This study aimed to evaluate the HB for its usability and perception among bariatric patients.
Methods:
Twelve patients before or after bariatric surgery tested the HB. A mixed-method approach was used, consisting of a questionnaire and qualitative interviews before and after testing the HB. Amongst others the dimensions usability, usefulness, satisfaction, and ease of use of the HB were measured. Data was analyzed using R Studio and Excel. The interviews were transcribed according to Kuckartz and a summary inductive content analysis was performed.
Results:
The results showed an excellent usability with means usability score of 87 (sd 12.5) out of 100. Other dimensions of acceptability were rated high as well. The concept of the HB and the availability of reliable nutrition information were perceived as desirable. Weaknesses were identified in response accuracy, the HB's limited knowledge, and design.
Conclusions:
The HB's ease of use and usability were evaluated positive. Response accuracy, topic selection, and design should be optimized in a next step. The perceptions of nutrition professionals, the impact on patient care and nutrition knowledge of participants need to be examined in further studies.
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