HSR&D Citation Abstract
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Voils CI, Adler R, Strawbridge E, Grubber J, Allen KD, Olsen MK, McVay MA, Raghavan S, Raffa SD, Funk LM. Early-phase study of a telephone-based intervention to reduce weight regain among bariatric surgery patients. Health psychology : official journal of the Division of Health Psychology, American Psychological Association. 2020 Jan 30.
This study describes early-phase development of a behavioral intervention to reduce weight regain following bariatric surgery. We utilized the Obesity-Related Behavioral Intervention Trials model to guide intervention development and evaluation. We sought to establish recruitment, retention, and fidelity monitoring procedures; evaluate feasibility of utilizing weight from the electronic medical record (EMR) as an outcome; observe improvement in behavioral risk factors; and evaluate treatment acceptability.
The intervention comprised 4 weekly telephone calls addressing behavior change strategies for diet, physical activity, and nutrition supplement adherence and 5 biweekly calls addressing weight loss maintenance constructs. Veterans ( = 33) who received bariatric surgery 9-15 months prior consented to a 16-week, pre-post study. Self-reported outcomes were obtained by telephone at baseline and 16 weeks. Clinic weights were obtained from the EMR 6 months pre- and postconsent. Qualitative interviews were conducted at 16 weeks to evaluate treatment acceptability. We aimed to achieve a recruitment rate of 25% and retention rate of 80%, and have 50% of participants regain < 3% of their baseline weight.
Results supported the feasibility of recruiting (48%) and retaining participants (93% provided survey data; 100% had EMR weight). Pre-post changes in weight (73% with < 3% weight regain) and physical activity (Cohen's ds 0.38 to 0.52) supported the potential for the intervention to yield clinically significant results. Intervention adherence (mean 7.8 calls of 9 received) and positive feedback from interviews supported treatment acceptability.
The intervention should be evaluated in an adequately powered randomized controlled trial. (PsycINFO Database Record (c) 2020 APA, all rights reserved).