Monday, December 29, 2025 12/29/2025

A Hybrid Mobile Phone Family Intervention to Prevent Childhood Obesity

Award Number: R01MD016135
ORGANIZATION: NATIONAL CENTER ON MINORITY HEALTH AND HEALTH DISPARITIES
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 04/13/2022
PERIOD OF PERFORMANCE END DATE: 10/31/2027

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A Hybrid Mobile Phone Family Intervention to Prevent Childhood Obesity - Project Summary Child obesity disproportionately impacts young Latino children. Obesity interventions focusing on 2- to 5- year-olds are critical as excessive weight gain during this period increases the risk of adolescent and adult overweight and has important implications for later health problems. Moreover, many obesogenic behaviors in adulthood, like television viewing and consumption of sugary drinks, begin at this age. The most effective childhood obesity interventions are those rooted in behavior and family systems theories. Both of these theories provide approaches to support lifestyle changes with an understanding that family is the major mediator of social influences on a child’s development. To date, however, most family-based interventions: (1) focus on one parent, typically mothers; (2) miss the opportunity to leverage the Latino cultural value of familism (i.e. family connectedness) to impact childhood obesity outcomes; and (3) include lengthy curricula requiring weekly in-person sessions over a 2- to 6-month time period. The rationale for the proposed study is to address these shortcomings by evaluating the effectiveness of a community-based intervention that is shorter and involves multiple family caregivers. The intervention will include in-person and mobile phone components focusing on Latino caregivers of young children, to support evidence-based and age appropriate dietary, media-viewing, and physical activity practices among 2- to 5-year old children, in order to decrease ethnic disparities in childhood obesity. The study will also explore the intervention’s potential to multiply the public health benefit by reducing obesity risk for adult caregivers. A prospective randomized study design will be used to evaluate the effectiveness of the family-based childhood obesity intervention on child BMI at 6- months (primary outcome) and at 12 months (secondary outcome), compared to a usual WIC care group. The study will randomize approximately 260 adult Latino caregivers of 2- to 5-year old children (2 caregivers per child) and half will be assigned to the intervention, and the other half will serve as the control group. All families will be recruited from four WIC Centers in Los Angeles County. Primary and secondary outcomes will include: (1) changes in child BMI outcomes at 6- and 12 months; (2) changes in child dietary, media-viewing, and physical activity practices; (3) whether familism attenuates or amplifies the intervention’s effect on differences in child BMI change between intervention and WIC usual care group; and (4) changes in caregiver’s dietary, physical activity, and weight. Pre- and post-intervention anthropometric and survey data will be collected at baseline, 1-, 6-, and 12-months post-baseline to estimate the intervention effect size on child BMI and weight-related practices, and explore whether familial mechanisms moderate the intervention’s effect on child BMI.


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: 2026 ( Subtotal = $505,174 )
2026	2026	UNIVERSITY OF CALIFORNIA, LOS ANGELES	10889 WILSHIRE BLVD STE 700	LOS ANGELES	CA	90024	LOS ANGELES	USA	Minority Health and Health Disparities Research	001	4	12/18/2025	NON-COMPETING CONTINUATION	$505,174
2026	2024	UNIVERSITY OF CALIFORNIA, LOS ANGELES	10889 WILSHIRE BLVD STE 700	LOS ANGELES	CA	90024	LOS ANGELES	USA	Minority Health and Health Disparities Research	000	3	12/18/2025	NON-COMPETING CONTINUATION	$0
														Subtotal = $505,174

Issue Date FY: 2025 ( Subtotal = $0 )
2025	2024	UNIVERSITY OF CALIFORNIA, LOS ANGELES	10889 WILSHIRE BLVD STE 700	LOS ANGELES	CA	90024	LOS ANGELES	USA	Minority Health and Health Disparities Research	000	3	12/11/2024	NON-COMPETING CONTINUATION	$0
														Subtotal = $0

Issue Date FY: 2024 ( Subtotal = $624,084 )
2024	2024	UNIVERSITY OF CALIFORNIA, LOS ANGELES	10889 WILSHIRE BLVD STE 700	LOS ANGELES	CA	90024	LOS ANGELES	USA	Minority Health and Health Disparities Research	000	3	1/4/2024	NON-COMPETING CONTINUATION	$579,048
2024	2024	UNIVERSITY OF CALIFORNIA, LOS ANGELES	10889 WILSHIRE BLVD STE 700	LOS ANGELES	CA	90024	LOS ANGELES	USA	Minority Health and Health Disparities Research	001	3	5/28/2024	NON-COMPETING CONTINUATION	$45,036
														Subtotal = $624,084

Issue Date FY: 2023 ( Subtotal = $649,154 )
2023	2023	UNIVERSITY OF CALIFORNIA, LOS ANGELES	10889 WILSHIRE BLVD STE 700	LOS ANGELES	CA	90024	LOS ANGELES	USA	Minority Health and Health Disparities Research	000	2	12/18/2022	NON-COMPETING CONTINUATION	$584,239
2023	2023	UNIVERSITY OF CALIFORNIA, LOS ANGELES	10889 WILSHIRE BLVD STE 700	LOS ANGELES	CA	90024	LOS ANGELES	USA	Minority Health and Health Disparities Research	001	2	2/16/2023	NON-COMPETING CONTINUATION	$64,915
														Subtotal = $649,154

Issue Date FY: 2022 ( Subtotal = $661,972 )
2022	2022	UNIVERSITY OF CALIFORNIA, LOS ANGELES	10889 WILSHIRE BLVD STE 700	LOS ANGELES	CA	90024	LOS ANGELES	USA	Minority Health and Health Disparities Research	000	1	4/13/2022	NEW	$661,972
														Subtotal = $661,972

Grand Total All Awards = $2,440,384

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A Hybrid Mobile Phone Family Intervention to Prevent Childhood Obesity

Award Number: R01MD016135

ORGANIZATION: NATIONAL CENTER ON MINORITY HEALTH AND HEALTH DISPARITIES

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

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

PERIOD OF PERFORMANCE START DATE: 04/13/2022

PERIOD OF PERFORMANCE END DATE: 10/31/2027

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