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Randomized Controlled Trial
. 2023 Feb 21;48(2):123-133.
doi: 10.1093/jpepsy/jsac075.

A Pilot Randomized Trial of an Obesity Prevention Program for High-Risk Infants in Primary Care

Tiffany M Rybak  1   2 , Avani C Modi  1   2 , Constance A Mara  1   2 , Rachel B Herbst  1   2 , Brea A Lauer  1 , Mary Carol Burkhardt  1   2 , Lori J Stark  1   2
Affiliations
Randomized Controlled Trial

A Pilot Randomized Trial of an Obesity Prevention Program for High-Risk Infants in Primary Care

Tiffany M Rybak et al. J Pediatr Psychol. .

Abstract

Objective: Rapid infant weight gain is associated with later obesity. Novel interventions to prevent rapid infant weight gain that are accessible to infants and families are needed, especially for those at the highest risk. Our aims were to examine: (a) feasibility and acceptability of a responsive parenting intervention delivered via Integrated Behavioral Health (IBH) in pediatric primary care and (b) preliminary effects on infant weight gain from birth to 6 (post-treatment) and 9 (follow-up) months.

Methods: A parallel design, proof-of-concept randomized control trial was conducted with 65 mother-infant dyads (32 randomized to intervention, 33 randomized an IBH attention control focused on promoting healthy mental health), in which the majority identify as Black (80%) and low income (91% receiving Medicaid). Participants and assessors were masked to treatment condition. Outcomes included feasibility (enrollment), acceptability (retention and adherence), and conditional weight gain (CWG), an indicator of rapid weight gain.

Results: The intervention was feasible (90% of eligible families enrolled) and acceptable (89% of families retained), with 81% receiving ≥3 of 4 treatment sessions. A medium effect was found on CWG (d = -0.54 post-treatment, d = -0.57 follow-up), with the infants in the treatment group showing significantly lower CWG (mean = -0.27, 95% CI, -0.63, 0.09) compared to the control group (mean = 0.29, 95% CI, -0.17, 0.76) at 9 months (p = .04).

Conclusions: This study demonstrates the feasibility of implementing a responsive parenting obesity prevention intervention within primary care. Delivery in pediatric primary care is advantageous for implementation and reaching at-risk populations. The preliminary effects on CWG are promising and support testing in a larger trial.

Keywords: Integrated Behavioral Health; communities of color; health disparities and inequities; low-income families; obesity prevention; responsive parenting.

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Figures

Figure 1.
Figure 1.
CONSORT diagram of the 65 families enrolled in the Teaching Healthy Responsive parenting during Infancy to promote Vital growth and rEgulation (THRIVE) Study.
See this image and copyright information in PMC

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