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Reply to Byker Shanks et al. Measurement of Fruit and Vegetable Intake Incorporating a Diversity, Equity, and Inclusion Lens. Comment on "Di Noia, J.; Gellermann, W. Use of the Spectroscopy-Based Veggie Meter<sup>®</sup> to Objectively Assess Fruit and Vegetable Intake in Low-Income Adults. <i>Nutrients</i> 2021, <i>13</i>, 2270".

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Mediating variables in a transtheoretical model dietary intervention program.

Jennifer Di Noia1, James O Prochaska

  • 1William Paterson University, Wayne, NJ 07470, USA. dinoiaj@wpunj.edu

Health Education & Behavior : the Official Publication of the Society for Public Health Education
|June 5, 2009
PubMed
Summary
This summary is machine-generated.

This study found that stages of change and pros mediate Transtheoretical Model (TTM) interventions for increasing fruit and vegetable intake in adolescents. Stages of change were a significant mediator, accounting for substantial intervention effects.

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Area of Science:

  • Public Health
  • Behavioral Science
  • Nutrition Science

Background:

  • Dietary interventions are crucial for adolescent health.
  • Economically disadvantaged African American adolescents face unique challenges in fruit and vegetable consumption.
  • The Transtheoretical Model (TTM) offers a framework for behavior change interventions.

Purpose of the Study:

  • To identify mediators of a TTM intervention aimed at increasing fruit and vegetable consumption.
  • To examine the roles of pros, cons, self-efficacy, and stages of change as mediators.
  • To understand the mechanisms through which TTM interventions impact dietary behavior in adolescents.

Main Methods:

  • Employed single- and multiple-mediator models to analyze intervention effects.
  • Assessed mediation criteria for pros, cons, self-efficacy, and stages of change.
  • Utilized data from a sample of 549 economically disadvantaged African American adolescents.

Main Results:

  • Stages of change and pros satisfied mediation criteria in single-mediator models.
  • Stages of change acted as a significant mediator, explaining 31% of the intervention effect in single-mediator models.
  • In multiple-mediator models, stages of change accounted for 72% of the intervention effect, highlighting its primary role.

Conclusions:

  • Stages of change and pros appear to be key mediators in TTM interventions for fruit and vegetable intake.
  • Findings contribute to understanding mediating variables in TTM dietary interventions.
  • Further replication studies are recommended to confirm the consistent mediation effects of stages of change and pros.