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Orfeu M. Buxton, PhD, Lisa M. Quintiliani, PhD, May H. Yang, MPH, Cara B. Ebbeling, PhD, Anne M. Stoddard, ScD, Lesley K. Pereira, MPH and Glorian Sorensen, PhD, MPH

Orfeu M. Buxton is with the Department of Medicine, Brigham and Women's Hospital, Boston, MA, and the Division of Sleep Medicine, Department of Medicine, Harvard Medical School, Boston. Lisa M. Quintiliani and Glorian Sorensen are with the Center for Community-Based Research, Dana-Farber Cancer Institute, Boston, and the Department of Society, Human Development and Health, Harvard School of Public Health, Boston. May H. Yang and Anne M. Stoddard are with the New England Research Institutes, Watertown, MA. Cara B. Ebbeling is with the Department of Pediatrics, Harvard Medical School, and the Department of Medicine, Children's Hospital, Boston. Lesley K. Pereira is with the Center for Community-Based Research, Dana-Farber Cancer Institute, Boston.

Correspondence: Correspondence should be sent to Orfeu M. Buxton, PhD, Division of Sleep Medicine, Harvard Medical School, Brigham and Women's Hospital, 221 Longwood Ave, BLI-438, Boston, MA 02115 (e-mail: orfeu{at}hms.harvard.edu). Reprints can be ordered at http://www.ajph.org by clicking on the "Reprints/Eprints" link.

Objectives. We assessed whether adequate sleep is linked to more healthful eating behaviors among motor freight workers and whether it mediates the effects of workplace experiences.

Methods. Data were derived from a baseline survey and assessment of permanent employees at 8 trucking terminals. Bivariate and multivariate regression models were used to examine relationships between work environment, sleep adequacy, and dietary choices.

Results. The sample (n = 542) was 83% White, with a mean age of 49 years and a mean body mass index of 30 kg/m². Most of the participants were satisfied with their job (87.5%) and reported adequate sleep (51%); 30% reported job strain. In our first model, lack of job strain and greater supervisor support were significantly associated with adequate sleep. In our second model, educational level, age, and adequate sleep were significantly associated with at least 2 of the 3 healthful eating choices assessed (P < .05). However, work experiences were not significant predictors of healthful food choices when adequate sleep was included.

Conclusions. Adequate sleep is associated with more healthful food choices and may mediate the effects of workplace experiences. Thus, workplace health programs should be responsive to workers' sleep patterns.