title: Treatment-enhanced paired action contributes substantially to change across multiple health behaviors: secondary analyses of five randomized trials.
abstract: The dominant paradigm of changing multiple health behaviors (MHBs) is based on treating, assessing, and studying each behavior separately. This study focused on individuals with co-occurring baseline health-risk behavior pairs and described whether they changed over time on both or only one of the behaviors within each pair. Data from five randomized trials of computer-tailored interventions (CTIs) that simultaneously treated MHBs were analyzed. The differences between treatment and control proportions that achieved paired action and singular action at 24 months follow-up, and the proportional contribution of paired action to overall change on each behavior, were assessed across 12 behavior pairs (including energy balance, addictive, and appearance-related behaviors). CTIs consistently produced more paired action across behavior pairs. Paired action contributed substantially more to the treatment-related outcomes than singular action. Studying concurrent changes on MHBs as demonstrated allows the effect of simultaneously treating MHBs to be assessed.
authors: Cancer Prevention Research Center, University of Rhode Island, Kingston, RI, USA ; Department of Psychology, University of Rhode Island, Kingston, RI, USA.
authors: Hui-Qing
authors: HQ
authors: Yin
authors: James O
authors: JO
authors: Prochaska
authors: Joseph S
authors: JS
authors: Rossi
authors: Colleen A
authors: CA
authors: Redding
authors: Andrea L
authors: AL
authors: Paiva
authors: Bryan
authors: B
authors: Blissmer
authors: Wayne F
authors: WF
authors: Velicer
authors: Sara S
authors: SS
authors: Johnson
authors: Hisanori
authors: H
authors: Kobayashi
keywords: Behavior pairs; Multiple behavior change; Multiple behavior interventions; Paired action; Singular action; Stages of change; TTM-tailored CTIs
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