Winnie Bell POLICY SEMINAR Nudging for Good: AI driven diagnostics and behavior change to improve diets and nutrition JUL 28, 2022 - 12:00 TO 2:00PM EDT

1. INDDEX24 Dietary
Assessment Platform
Winnie Bell
Senior Technical Advisor, Intake Center for Dietary Assessment
FHI Solutions
28 July 2022

2. Traditional pen-and paper 24-hour dietary recalls
• Time consuming, error prone, expensive
• Limited investment in research
infrastructure and dietary reference data
o Comprehensive food lists
o Food composition databases
o Standard recipes
o Conversion factors
• Lack of centralized hub resulting in
inefficiencies as each study “reinvents
the wheel”
• Cleaning and processing data is time
intensive resulting in delayed policy and
programmatic action

3. INDDEX Integrated Platform
Developed by the INDDEX Project, Tufts University

4. Global Food Matters Database
 Designed to enable sharing of dietary reference data
among users to increase efficiencies for dietary
surveys
 Centralized, publicly accessible repository of dietary
reference data (food list, recipes, conversion factors
etc.)
 Users can copy existing workspaces and/or download
data to their computer in a formatted Excel template
 Food, recipe, and ingredient names can be translated
in up to four languages for a given workspace
 Data are seamlessly linked to the INDDEX24 Mobile
App, allowing for customization and easy updates to
dietary reference data
Developed by the INDDEX Project, Tufts University

5. INDDEX24 Mobile App
 Quantitative multi-pass 24-hr dietary recall app that
works on any Android device (e.g., tablet)
 Interviewer administered and designed to work fully
offline with data uploaded to cloud with WiFi
connection
 Can be used in up to four languages per survey
 Allows data to be collected consistently across a survey
through use of probes and standardardized approach
 Customizable food and recipe list via linkage with the
Global Food Matters Database
Developed by the INDDEX Project, Tufts University

6. DOI: https://doi.org/10.1017/S0007114522001507
DOI: https://doi.org/10.1017/S0007114522001362
DOI: https://doi.org/10.1017/S0007114521004700
Validation and Cost Studies of INDDEX24 in Viet Nam
and Burkina Faso

7. Benefits of Using INDDEX24
• Reduced total costs: INDDEX24
costs less than paper per
respondent
• Further cost/time savings:
Leveraging existing dietary
reference data in FMDB will save
money and time
• Lower respondent burden: Equal
or lower average time per
interview when using INDDEX24
compared to paper
• Shorter survey cycle: Less total
time required from survey
preparation to policy
• Data quality: Accuracy of results as
good as or better than pen-and-
paper data collection
• Improved user experience:
Enumerators and respondents
overall preferred INDDEX24
To date INDDEX24 has been used in 10 studies in six countries in
Sub-Saharan Africa and Southeast Asia

8. INDDEX24 Summary
• INDDEX24 Dietary Assessment Platform is a multicomponent system
designed to overcome key bottlenecks
• INDDEX24 has been rigorously tested and adopted by a variety of users
• The Global Food Matters Database can help increase efficiencies
related to survey preparation and processing
• Sign up for access to the Global Food Matters Database:
https://inddex.nutrition.tufts.edu/global-food-matters
• Contact us for more information about using INDDEX24:
INDDEX24@FHISolutions.org

9. •Email: INDDEX24@FHISolutions.org
•Website: www.intake.org
•Twitter: @IntakeCDA
Thank you!

10. EXTRA

11. Are you interested in using the
INDDEX24 Dietary Assessment Platform?
Global Food Matters Database
• Free, open access, and publicly available
• Sign-up to access:
https://inddex.nutrition.tufts.edu/global-
food-matters
• Check out it out today!
INDDEX24 Mobile App
• Tiered pricing scheme
• Comes with 2.5 days of technical
assistance from Intake
• Access and use of CommCare for other
aspects of survey

12. Are You Interested In Learning More About
INDDEX24?
• Contact us for more information and to discuss your study plans:
INDDEX24@FHISolutions.org
• Sign up for access to the Global Food Matters Database:
https://inddex.nutrition.tufts.edu/global-food-matters

13. Recent and Current Users of INDDEX24
1. Nigeria: National Food Consumption and
Micronutrient Survey
2. Cambodia: Helen Keller International ARCH
Study
3. Senegal: Helen Keller International ARCH Study
4. Viet Nam: New York Academy of Sciences Study
5. Burkina Faso: IRD / IMMANA Study
6. Viet Nam: IRD / IMMANA Study
7. Burkina Faso: IRD / MERIEM
8. Niger: IRD / MERIEM
9. Burkina Faso: INDDEX24 Validation Study
10. Viet Nam: INDDEX24 Validation Study
Data in the FMDB
∙ Burkina Faso
∙ Cambodia
∙ Kenya
∙ Malawi
∙ Senegal
∙ Uganda
∙ Viet Nam
∙ West Africa

14. Becoming an INDDEX24 User
~ From preparation through data collection ~
1) Set-up a Global FMDB
workspace and begin
preparing dietary reference
data
(Time: 1-6 months)
2) Set-up a CommCare project
space and develop other
modules for survey
(Time: 1-2 months)
3) Prepare the INDDEX24
mobile app for the field (e.g.,
context specific modifications,
translations etc.)
(Time: 1-2 months)
4) Field test INDDEX24 and the
food list, recipes, probes, and
conversion methods
(Time: 1-2 weeks)
5) Make any necessary
revisions or additions to the
food list and other dietary
reference data
(Time: 1-2 weeks)
6) Train supervisors and
enumerators on how to use
INDDEX24
(Time: 1-3 weeks)
7) Data collection
(Time: Varies based on survey
and context)
8) Monitor data as it is
collected and make updates to
food list and dietary reference
data through FMDB as needed
9) After data collection, use
Analytical Reports to produce
data that has been converted
and matched to FCT, with
preliminary analysis

15. This work was supported by the Bill & Melinda Gates Foundation
[grant number INV-001600] through a grant to the Tufts University
Gerald J. and Dorothy R. Friedman School of Nutrition Science and
Policy’s INDDEX Project