Volume 12, Number 5—May 2006
Dispatch
The Trojan Chicken Study, Minnesota
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.