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Weight Control Intervention for Truck Drivers: The SHIFT Randomized Controlled Trial, United States
Ryan Olson1, Brad Wipfli1, Sharon V Thompson1
1Ryan Olson, Brad Wipfli, Sharon V. Thompson, W. Kent Anger and Leslie B. Hammer are with Oregon Institute of Occupational Health Sciences, Oregon Health & Science University (OHSU), Portland. Todd Bodner is with the Department of Psychology, Portland State University, Portland. Diane L. Elliot is with Division of Health Promotion and Sports Medicine, OHSU. Nancy A. Perrin is with Center for Health Research, Kaiser Permanente Northwest, Portland, OR.
Objectives:
To evaluate the effectiveness of the Safety and Health Involvement For Truckers (SHIFT) intervention with a randomized controlled design.
Methods:
The multicomponent intervention was a weight-loss competition supported with body weight and behavioral self-monitoring, computer-based training, and motivational interviewing. We evaluated intervention effectiveness with a cluster-randomized design involving 22 terminals from 5 companies in the United States in 2012 to 2014. Companies were required to provide interstate transportation services and operate at least 2 larger terminals. We randomly assigned terminals to intervention or usual practice control conditions. We assessed participating drivers (n = 452) at baseline and 6 months.
Results:
In an intent-to-treat analysis, the postintervention difference between groups in mean body mass index change was 1.00 kilograms per meters squared (P < .001; intervention = -0.73; control = +0.27). Behavioral changes included statistically significant improvements in fruit and vegetable consumption and physical activity.
Conclusions:
Results establish the effectiveness of a multicomponent and remotely administered intervention for producing significant weight loss among commercial truck drivers.
