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dc.contributor.authorZoellner, Jamie M.
dc.contributor.authorYou, Wen
dc.contributor.authorEstabrooks, Paul A.
dc.contributor.authorChen, Yvonnes
dc.contributor.authorDavy, Brenda M.
dc.contributor.authorPorter, Kathleen J.
dc.contributor.authorHedrick, Valisa E.
dc.contributor.authorBailey, Angela
dc.contributor.authorKružliaková, Natalie
dc.identifier.citationZoellner, J. M., You, W., Estabrooks, P. A., Chen, Y., Davy, B. M., Porter, K. J., Hedrick, V. E., Bailey, A., & Kružliaková, N. (2018). Supporting maintenance of sugar-sweetened beverage reduction using automated versus live telephone support: findings from a randomized control trial. The international journal of behavioral nutrition and physical activity, 15(1), 97.
dc.descriptionThis work is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.description.abstractBackground Although reducing sugar-sweetened beverage (SSB) intake is an important behavioral strategy to improve health, no known SSB-focused behavioral trial has examined maintenance of SSB behaviors after an initial reduction. Guided by the RE-AIM framework, this study examines 6–18 month and 0–18 month individual-level maintenance outcomes from an SSB reduction trial conducted in a medically-underserved, rural Appalachia region of Virginia. Reach and implementation indicators are also reported.

Methods Following completion of a 6-month, multi-component, behavioral RCT to reduce SSB intake (SIPsmartER condition vs. comparison condition), participants were further randomized to one of three 12-month maintenance conditions. Each condition included monthly telephone calls, but varied in mode and content: 1) interactive voice response (IVR) behavior support, 2) human-delivered behavior support, or 3) IVR control condition. Assessments included the Beverage Intake Questionnaire (BEVQ-15), weight, BMI, and quality of life. Call completion rates and costs were tracked. Analysis included descriptive statistics and multilevel mixed-effects linear regression models using intent-to-treat procedures.

Results Of 301 subjects enrolled in the 6-month RCT, 242 (80%) were randomized into the maintenance phase and 235 (78%) included in the analyses. SIPsmartER participants maintained significant 0–18 month decreases in SSB. For SSB, weight, BMI and quality of life, there were no significant 6–18 month changes among SIPsmartER participants, indicating post-program maintenance. The IVR-behavior participants reported greater reductions in SSB kcals/day during the 6–18 month maintenance phase, compared to the IVR control participants (− 98 SSB kcals/day, 95% CI = − 196, − 0.55, p < 0.05); yet the human-delivered behavior condition was not significantly different from either the IVR-behavior condition (27 SSB kcals/day, 95% CI = − 69, 125) or IVR control condition (− 70 SSB kcals/day, 95% CI = − 209, 64). Call completion rates were similar across maintenance conditions (4.2–4.6 out of 11 calls); however, loss to follow-up was greatest in the IVR control condition. Approximated costs of IVR and human-delivered calls were remarkably similar (i.e., $3.15/participant/month or $38/participant total for the 12-month maintenance phase), yet implications for scalability and sustainability differ.

Conclusion Overall, SIPsmartER participants maintained improvements in SSB behaviors. Using IVR to support SSB behaviors is effective and may offer advantages as a scalable maintenance strategy for real-world systems in rural regions to address excessive SSB consumption.
dc.description.sponsorshipNational Institutes of Health, National Cancer Institute (R01CA154364)en_US
dc.rightsCopyright © 2018, The Author(s).en_US
dc.subjectRandomized controlled trialen_US
dc.subjectRural populationen_US
dc.subjectBehavioral researchen_US
dc.titleSupporting maintenance of sugar-sweetened beverage reduction using automated versus live telephone support: Findings from a randomized control trialen_US
kusw.kuauthorChen, Yvonnes
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US

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Copyright © 2018, The Author(s).
Except where otherwise noted, this item's license is described as: Copyright © 2018, The Author(s).