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Journal of Occupational & Environmental Medicine:
doi: 10.1097/JOM.0000000000000088
Original Articles

Dietary Inflammatory Index Scores Differ by Shift Work Status: NHANES 2005 to 2010

Wirth, Michael D. MSPH, PhD; Burch, James MS, PhD; Shivappa, Nitin MBBS, MPH; Steck, Susan E. PhD, MPH, RD; Hurley, Thomas G. MSc; Vena, John E. PhD; Hébert, James R. ScD

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Continued Medical Education
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Abstract

Objective: Shift workers are affected by diet- and inflammation-related diseases, including cardiovascular disease, diabetes, and cancer. We examined a dietary inflammatory index (DII) in relation to shift work from the National Health and Nutrition Examination Survey data (2005 to 2010).

Methods: The DII was calculated using data from a 24-hour dietary recall. Shift work categories included day workers, evening/night shift workers, or rotating shift workers. General linear models were fit to examine the relationship between shift work and adjusted mean DII values.

Results: Among all shift workers and specifically rotating shift workers, higher (ie, more pro-inflammatory) mean DII scores (1.01 and 1.07 vs 0.86; both P ≤ 0.01) were observed compared with day workers. Women tended to express strong evening/night shift effects.

Conclusions: More proinflammatory diets observed among shift workers may partially explain increased inflammation-related chronic disease risk observed in other studies among shift workers compared with their day-working counterparts.

Copyright © 2014 by the American College of Occupational and Environmental Medicine

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