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Kavanagh ME, Chiavaroli L, Quibrantar SM, Viscardi G, Ramboanga K, Amlin N, Paquette M, Sahye-Pudaruth S, Patel D, Grant S, Glenn A, Ayoub-Charette S, Zurbau A, Josse R, Malik VS, Kendall CWC, Jenkins DJ, Sievenpiper JL
Acceptability of a Web-Based Health App (PortfolioDiet.app) to Translate a Nutrition Therapy for Cardiovascular Disease in High-Risk Adults: Mixed Methods Randomized Ancillary Pilot Study
Acceptability of a Web-Based Health Application (PortfolioDiet.app) to Translate a Nutrition Therapy for Cardiovascular Disease in High-Risk Adults: Mixed Methods Randomized Ancillary Pilot Study
Meaghan E Kavanagh;
Laura Chiavaroli;
Selina M Quibrantar;
Gabrielle Viscardi;
Kimberly Ramboanga;
Natalie Amlin;
Melanie Paquette;
Sandhya Sahye-Pudaruth;
Darshna Patel;
Shannan Grant;
Andrea Glenn;
Sabrina Ayoub-Charette;
Andreea Zurbau;
Robert Josse;
Vasanti S Malik;
Cyril W C Kendall;
David JA Jenkins;
John L Sievenpiper
ABSTRACT
Background:
The Portfolio Diet is a plant-based dietary pattern for cardiovascular disease (CVD) risk reduction. To enhance implementation of the Portfolio Diet, we developed the PortfolioDiet.app.
Objective:
The objective of this study was to evaluate the effect of PortfolioDiet.app on dietary adherence and its acceptability among adults with a high risk of CVD over 12-weeks.
Methods:
Forty-one participants in an ongoing study (ClinicalTrials.gov Identifier: NCT02481466) were invited to participate in an ancillary study and be randomized to the PortfolioDiet.app or a control for 12 weeks. Adherence to the Portfolio Diet was assessed by weighed 7-day diet records at baseline and 12-weeks using the clinical-Portfolio Diet Score (c-PDS). Acceptability of the app was evaluated using a multifaceted approach, including usability through the System Usability Scale (SUS), with a score higher than 70 being considered acceptable, and a qualitative analysis of open-ended questions using Nvivo 12.
Results:
Fourteen participants were randomized (8 intervention, 6 control) and completed the ancillary study. There was a tendency for an increase in adherence to the Portfolio Diet by 1.25±2.8 (5.0%) and 0.19±4.4 (0.8%) points in the app and control group, respectively, with no difference between groups (P>0.05). Participants used the app on average for 18±14 days per month and rated the app as usable (SUS of 80.9±17.3). Qualitative analyses identified four main themes (User Engagement, Usability, External Factors, and Added Components), which complemented the quantitative data obtained.
Conclusions:
This study demonstrates the PortfolioDiet.app is usable and reinforces dietitian advice to follow the Portfolio Diet in adults at high risk of CVD. A randomized controlled trial investigating the PortfolioDiet.app on health-related outcomes is warranted. Clinical Trial: ClinicalTrials.gov Identifier: NCT02481466
Citation
Please cite as:
Kavanagh ME, Chiavaroli L, Quibrantar SM, Viscardi G, Ramboanga K, Amlin N, Paquette M, Sahye-Pudaruth S, Patel D, Grant S, Glenn A, Ayoub-Charette S, Zurbau A, Josse R, Malik VS, Kendall CWC, Jenkins DJ, Sievenpiper JL
Acceptability of a Web-Based Health App (PortfolioDiet.app) to Translate a Nutrition Therapy for Cardiovascular Disease in High-Risk Adults: Mixed Methods Randomized Ancillary Pilot Study