Impact of a Worksite Diabetes Prevention Intervention on Diet Quality and Social Cognitive Influences of Health Behavior: A Randomized Controlled Trial

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• 作者：Carla K. Miller ; PhD ; RD¹ ; ^{miller.4453@osu.edu" class="auth_mail" title="E-mail the corresponding author} ; Kellie R. Weinhold ; MS ; RD¹ ; Haikady N. Nagaraja ; PhD²
• 关键词：type 2 diabetes mellitus ; worksite ; diabetes prevention ; diet quality ; self-efficacy
• 刊名：Journal of Nutrition Education and Behavior
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：48
• 期：3
• 页码：160-169.e1
• 全文大小：237 K

文摘

To evaluate the impact of a worksite diabetes prevention intervention on secondary outcomes regarding the change in diet quality and components of the Health Action Process Approach (HAPA) theoretical framework.

Design

Pretest-posttest control group design with 3-month follow-up.

Setting

University worksite.

Participants

Employees aged 18–65 years with prediabetes (n = 68).

Intervention

A 16-week group-based intervention adapted from the Diabetes Prevention Program.

Main Outcome Measures

Diet quality was assessed using the Alternative Healthy Eating Index 2010; HAPA components were assessed via written questionnaire.

Analysis

Repeated-measures ANOVA compared the between- and within-group change in outcomes across time.

Results

Significant difference occurred between groups for the change in consumption of nuts/legumes and red/processed meats postintervention and for fruits at 3-month follow-up (all P < .05); a significant increase in total Alternative Healthy Eating Index 2010 score occurred postintervention in the experimental group (P = .002). The changes in action planning, action self-efficacy, and coping self-efficacy from HAPA were significantly different between groups after the intervention; the change in outcome expectancies was significantly different between groups at 3-month follow-up (all P < .05).

Conclusions and Implications

The worksite intervention facilitated improvement in diet quality and in planning and efficacious beliefs regarding diabetes prevention. Further research is needed to evaluate the long-term impact of the intervention.