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Randomized Controlled Trial
. 2010 Jan;38(1):27-38.
doi: 10.1016/j.amepre.2009.08.028.

Step ahead a worksite obesity prevention trial among hospital employees

Stephenie C Lemon  1 , Jane Zapka, Wenjun Li, Barbara Estabrook, Milagros Rosal, Robert Magner, Victoria Andersen, Amy Borg, Janet Hale
Affiliations
Randomized Controlled Trial

Step ahead a worksite obesity prevention trial among hospital employees

Stephenie C Lemon et al. Am J Prev Med. 2010 Jan.

Abstract

Background: The worksite represents a promising venue in which to address the issue of obesity.

Design: Pair-matched, cluster-RCT. Data were collected from 2005 to 2008 and analyzed in 2008.

Setting/participants: A random sample of 806 employees was selected to represent the workforce of six hospitals in central Massachusetts.

Intervention: The 2-year ecologic intervention sought to prevent weight gain through changes in worksite weight-related norms using strategies targeted at the organization, interpersonal environment, and employees.

Main outcome measures: The primary outcome was change in BMI at the 12- and 24-month follow-ups. Change in perceptions of organizational commitment to employee health and normative coworker behaviors were secondary outcomes.

Results: There was no impact of the intervention on change in BMI from baseline to 12 (beta=0.272; 95% CI=-0.271, 0.782) or 24 months (beta=0.276; 95% CI=-0.338, 0.890) in intention-to-treat analysis. When intervention exposure (scale=0 to 100) was used as the independent variable, there was a decrease of 0.012 BMI units (95% CI=-0.025, 0.001) for each unit increase in intervention participation at the 24-month follow-up. Employees in intervention sites reported significantly greater improvements in perceptions of organizational commitment to employee health at 12 and 24 months compared to control sites, but there was no impact on perceptions of normative coworker behaviors.

Conclusions: The intervention had a dose-response relationship with BMI, with positive effects proportional to extent of participation. Although the intervention was able to change organizational perceptions, successfully improving changes in actual and perceived social norms may be needed to achieve population-level impact in complex worksite organizations.

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Figures

Figure 1
Figure 1
Trial flowchart a 4 were to lost to follow-up at 12 months, but completed the 24-month follow-up.
Figure 2
Figure 2
Classification tree results
See this image and copyright information in PMC

References

    1. Wyatt SB, Winters KP, Dubbert PM. Overweight and obesity: prevalence, consequences, and causes of a growing public health problem. Am J Med Sci. 2006;331(4):166–74. - PubMed
    1. Gregg EW, Cheng YJ, Cadwell BL, Imperatore G, Williams DE, Flegal KM, et al. Secular trends in cardiovascular disease risk factors according to body mass index in U.S. adults. Jama. 2005;293(15):1868–74. - PubMed
    1. Calle EE, Rodriguez C, Walker-Thurmond K, Thun MJ. Overweight, obesity, and mortality from cancer in a prospectively studied cohort of U.S. adults. N Engl J Med. 2003;348(17):1625–38. - PubMed
    1. Flegal KM, Graubard BI, Williamson DF, Gail MH. Excess deaths associated with underweight, overweight, and obesity. JAMA. 2005;293(15):1861–7. - PubMed
    1. Ogden CL, Carroll MD, Curtin LR, McDowell MA, Tabak CJ, Flegal KM. Prevalence of overweight and obesity in the U.S., 1999–2004. JAMA. 2006;295(13):1549–55. - PubMed

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