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Volume 12, Number 5—May 2006

Dispatch

The Trojan Chicken Study, Minnesota

Sandra R. Olson*†Comments to Author  and Gregory C. Gray*
Author affiliations: *University of Iowa College of Public Health, Iowa City, Iowa, USA; †University of Wisconsin-Madison, Madison, Wisconsin, USA

Main Article

Table 1

Hand contamination by variables gender, age, and roles*

Variable Not contaminated, n = 86 (%) Contaminated, n = 8 (%) OR (95% CI)
Sex
Female 60 (92.3) 5 (7.7) Referent
Male 26 (89.7) 3 (10.3) 1.4 (0.2–7.7)
Age group, y
7–12 12 (92.3) 1 (7.7) 0.3 (0.0–3.3)
13–21 18 (100) 0 (0) Referent
22–50 33 (89.2) 4 (10.8) 0.4 (0.1–2.3)
51–79 12 (85.7) 2 (14.3) 0.6 (0.1–4.5)
Role
Exhibitor 18 (100) 0 (0) Referent
Family member of exhibitor 14 (82.4) 3 (17.6) 0.8 (0.1–4.8)
Visitor 35 (92.1) 3 (7.9) 0.3 (0–1.8)
Other 8 (88.9) 1 (11.1) 0.5 (0–5.2)

*OR, odds ratio; CI, confidence interval. All OR were calculated with exact CI by EpiInfo version 3.3.2 (CDC, Atlanta, GA, USA). The value 0.5 was inserted into cells with values of zero.

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