Intro animation:
Session recording:
Speakers and presentations:
- Session chair: Sera Young, Northwestern University
@ProfSeraYoung @NorthwesternU - Brooke Colaiezzi, Tufts University
@bcola30 @TuftsNutrition
INDDEX24: An innovative global dietary assessment platform for increasing the availability, access, and use of dietary data
Presentation | Slides - Rainier Masa, University of North Carolina at Chapel Hill
@UNC
Does household food insecurity mean the same thing for different groups of youth? Testing for measurement invariance
Presentation | Slides - Silvia Alonso, International Livestock Research Institute
@SilviaAlonso78 @ILRI
Evaluation and validation of an African Food Safety Index
Presentation | Slides - Winnie Sambu, University of Cape Town
@wsambu @UCT_news
Measuring child malnutrition in South Africa: a comparison of estimates from panel and cross-section surveys
Presentation | Slides
Abstracts:
INDDEX24: An innovative global dietary assessment platform for increasing the availability, access, and use of dietary data
Brooke Colaiezzi1
Sarah Wafa1
Winnie Bell1
Jerome Some1
Hallie Perlick1
Cathleen Prata1
Beatrice Rogers1
Jennifer Coates1
1Friedman School of Nutrition Science and Policy, Tufts University, United States
Introduction
Individual-level quantitative dietary data are often viewed as prohibitively expensive and time-consuming to generate. Few low- and middle-income countries (LMICs) regularly collect these data. When they are collected it can take years to process and analyze the data after the survey has concluded. The length of this process is due, in large part, to the lack of available and accessible dietary data research infrastructure (e.g. electronic dietary assessment tools that circumvent the need for data entry; accessible food composition tables, portion conversions, and standardized recipes). INDDEX24 is a global dietary assessment platform that seeks to address these bottlenecks.
Methods
Priority technical specifications for a global dietary assessment platform were drafted and reviewed by experts with extensive dietary assessment experience in LMICs. Specifications included use of the multiple pass 24-hour dietary recall method (24HR), contextual adaptability (i.e. the ability to adapt the tool for surveys conducted in different contexts), offline data collection capability, and an interviewer-administered format. Existing dietary assessment platforms and dietary assessment technologies were evaluated against the technical specifications via a structured literature review and key informant interviews. An initial version of INDDEX24 was developed collaboratively with two technology firms and tested through feasibility studies in Vietnam and Burkina Faso. Feedback was collected from users of the platform in Viet Nam and Burkina Faso. Webinars were conducted with potential users of the platform. Additional development rounds implemented feedback from these studies. The platform’s relative validity, time, and cost compared to use of paper-based 24-hour dietary recalls were then evaluated in Vietnam and Burkina Faso. The platform became available to select beta users in the fall of 2019. An official launch of the INDDEX24 platform is anticipated by the end of 2020.
Findings
INDDEX24 is a novel solution to many of the challenges of scaling up dietary data collection in LMICs. It is comprised of a mobile application (app) for dietary data collection that is linked to a web app for managing and sharing dietary data inputs (i.e. food composition data, recipes, food descriptors, and portion conversions). Users can search the web app for dietary data inputs and copy and customize them to their research context or upload their own inputs. The web app is used to build the survey food and recipe list, assign portion size estimation aids to foods and recipes, and manage food composition and portion conversion factor data. The INDDEX24 mobile app collects data using the 24HR method and can be used offline in settings without internet connectivity. It was built using CommCare. The CommCareHQ website enables INDDEX24 users to adapt the mobile app questionnaire text to their survey language and context, add survey modules, monitor data collection efforts in real time, and provides a reporting feature with summary statistics. To maximize the time and cost saving benefits of the platform, a concerted effort will be needed to populate the web app with dietary data inputs from LMICs.
Conclusion
The extensive consultative process and evidence driven design has produced an innovative platform that balances flexibility of adaptation to a range of contexts with quality control and standardization.