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Leveraging cell phone location data to measure interactions with the food environment and associated health outcomes

Award Number: R21DK129895
ORGANIZATION: NATIONAL INSTITUTE OF DIABETES & DIGESTIVE & KIDNEY DISEASES
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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Project Summary Unhealthy diet is a key behavioral risk factor for several chronic diseases, particularly type-2 diabetes, cardiovascular disease, and some cancers. Long-term measures of diet are typically self-reported and subject to known sources of error and bias. A recognized population-level determinant of diet is access to and use of food retailing, particularly consuming food away from home (FAFH) from quick-service or “fast food” outlets. Currently, there are few methods to objectively measure long-term patterns of FAFH in health research or to understand how built environments shape these behaviors. However, the pervasive use of smartphones provides an emerging opportunity to address these questions. We will use Google Location History Timeline (GTL) data, which includes high-resolution geographic location data collected passively on smartphones with Google Apps, to develop new measures of long-term patterns of food retailer utilization, especially use of FAFH outlets. We will use data from 500 adults from the Washington State Twin Registry who are contributing their GTL data for another NIH-funded study on built environments and active travel (R21 ES031226-01A1). These data include daily time-activity patterns from 2012 to present. We will evaluate these measures against objective measures of contemporaneous food outlet utilization and detailed dietary intake measures in a subset of twins who have previously completed additional surveys, including food frequency questionnaires and travel diaries. Finally, we will measure how metrics of FAFH use relate to health outcomes, particularly weight status, weight change, and self-rated overall health, both cross-sectionally and longitudinally. New measures of food access behaviors associated with diet and health outcomes can be used in epidemiological research and advance the field of built environment influences on human health.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2024 ( Subtotal = $183,600 )
2024	2024	WASHINGTON STATE UNIVERSITY	240 FRENCH ADMINISTRATION BLDG	PULLMAN	WA	99164	WHITMAN	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	3	7/1/2024	NON-COMPETING CONTINUATION	$183,600
														Subtotal = $183,600

Issue Date FY: 2023 ( Subtotal = $191,250 )
2023	2023	WASHINGTON STATE UNIVERSITY	240 FRENCH ADMINISTRATION BLDG	PULLMAN	WA	99164	WHITMAN	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	001	2	7/19/2023	NON-COMPETING CONTINUATION	$191,250
2023	2022	WASHINGTON STATE UNIVERSITY	240 FRENCH ADMINISTRATION BLDG	PULLMAN	WA	99164	WHITMAN	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	1	7/18/2023	NEW	$0
														Subtotal = $191,250

Issue Date FY: 2022 ( Subtotal = $191,250 )
2022	2022	WASHINGTON STATE UNIVERSITY	240 FRENCH ADMINISTRATION BLDG	PULLMAN	WA	99164	WHITMAN	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	1	9/21/2022	NEW	$191,250
														Subtotal = $191,250

Grand Total All Awards = $566,100

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Leveraging cell phone location data to measure interactions with the food environment and associated health outcomes

Award Number: R21DK129895

ORGANIZATION: NATIONAL INSTITUTE OF DIABETES & DIGESTIVE & KIDNEY DISEASES

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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