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Volume 6, Number 2—April 2000

Dispatch

Norwalk-Like Viral Gastroenteritis Outbreak in U.S. Army Trainees

Mark K. Arness*, Brian H. Feighner†, Michelle L. Canham†, David N. Taylor‡, Stephan S. Monroe§, Theodore J. Cieslak¶, Edward L. Hoedebecke†, Christina S. Polyak†, Judy C. Cuthie†, Rebecca L. Fankhauser§, Charles D. Humphrey§, Tamra L. Barker#, Chris D. Jenkins#, and Donald R. Skillman#
Author affiliations: *Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA; †U.S. Army Center for Health Promotion and Preventive Medicine, Edgewood, Maryland, USA; ‡Walter Reed Army Institute of Research, Washington, D.C., USA; §Centers for Disease Control and Prevention, Atlanta, Georgia, USA; ¶U.S. Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA; and; #William Beaumont Army Medical Center, El Paso, Texas, USA

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Table 3

Odds ratios (OR) for selected foods and dining facilities

Univariate Univariate Multivariate Multivariate
Exposure analysis OR 95% CI analysis OR 95% CI
Ever ate at DF1 in week priora 9.8 (2.8, 40.2) 7.3 (2.0, 26.4)
Ate in DF1 preferentiallyb 3.7 (2.0, 6.9) 2.4 (1.3, 4.5)
Ever ate at DF2 in week priora 1.1 (0.5, 2.3) 0.6 (0.2, 1.4)
Soft drinks 3.8 (2.0, 7.2) 2.6 (1.3, 5.0)
Crumb cake 2.4 (1.2, 4.8) 1.8 (0.8, 3.8)
Ice cream 1.7 (1.1, 3.0) 1.1 (0.6, 2.0)
Cinnamon rolls 1.7 (0.8, 3.7) 1.3 (0.6, 3.0)
Pie 1.5 (0.9, 2.7) 1.1 (0.6, 2.0)
Ice 1.5 (0.8, 2.9) 1.1 (0.6, 2.0)

Analysis based on inclusion of 98 "first-wave" cases only, as described in text.
Odds ratios (OR) defined as consumed item vs. did not, in all cells except:aOR = ‘Yes’ vs. ‘No’; bOR = DF1 vs. any other dining facility.

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