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A visual analytics approach for pattern-recognition in patient-generated data.


ABSTRACT: Objective:To develop and test a visual analytics tool to help clinicians identify systematic and clinically meaningful patterns in patient-generated data (PGD) while decreasing perceived information overload. Methods:Participatory design was used to develop Glucolyzer, an interactive tool featuring hierarchical clustering and a heatmap visualization to help registered dietitians (RDs) identify associative patterns between blood glucose levels and per-meal macronutrient composition for individuals with type 2 diabetes (T2DM). Ten RDs participated in a within-subjects experiment to compare Glucolyzer to a static logbook format. For each representation, participants had 25 minutes to examine 1 month of diabetes self-monitoring data captured by an individual with T2DM and identify clinically meaningful patterns. We compared the quality and accuracy of the observations generated using each representation. Results:Participants generated 50% more observations when using Glucolyzer (98) than when using the logbook format (64) without any loss in accuracy (69% accuracy vs 62%, respectively, p?=?.17). Participants identified more observations that included ingredients other than carbohydrates using Glucolyzer (36% vs 16%, p?=?.027). Fewer RDs reported feelings of information overload using Glucolyzer compared to the logbook format. Study participants displayed variable acceptance of hierarchical clustering. Conclusions:Visual analytics have the potential to mitigate provider concerns about the volume of self-monitoring data. Glucolyzer helped dietitians identify meaningful patterns in self-monitoring data without incurring perceived information overload. Future studies should assess whether similar tools can support clinicians in personalizing behavioral interventions that improve patient outcomes.

SUBMITTER: Feller DJ 

PROVIDER: S-EPMC6188507 | biostudies-other | 2018 Oct

REPOSITORIES: biostudies-other

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A visual analytics approach for pattern-recognition in patient-generated data.

Feller Daniel J DJ   Burgermaster Marissa M   Levine Matthew E ME   Smaldone Arlene A   Davidson Patricia G PG   Albers David J DJ   Mamykina Lena L  

Journal of the American Medical Informatics Association : JAMIA 20181001 10


<h4>Objective</h4>To develop and test a visual analytics tool to help clinicians identify systematic and clinically meaningful patterns in patient-generated data (PGD) while decreasing perceived information overload.<h4>Methods</h4>Participatory design was used to develop Glucolyzer, an interactive tool featuring hierarchical clustering and a heatmap visualization to help registered dietitians (RDs) identify associative patterns between blood glucose levels and per-meal macronutrient composition  ...[more]

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