Question 5 / 7: 

The following scenario is for Questions 4?-6:

Consider the table of results displaying odds ratios for the outcome of salmonellosis (yes/no)

and the exposure of beet consumption (yes/no). In the multivariate models, the odds ratios are

adjusted for age, sex, and owning a beet farm.

Odds ratios (and 95% Confidence Intervals)

VariableUnadjustedAdjusted
Beet consumption1.34 (1.19, 1.70)1.27 (0.98, 1.84)

How can we interpret the exposure of beet consumption in the unadjusted model?
A  Beet consumption is protective against salmonellosis and the association is statistically significant.
B  Beet consumption is associated with an increased risk of salmonellosis and the association
is statistically significant.
C  Beet consumption is protective against salmonellosis and the association is not statistically
significant.
D  Beet consumption is associated with an increased risk of salmonellosis and the association
is not statistically significant.
E  Beet consumption is associated with an increased risk of salmonellosis, but we cannot tell
if the findings are statistically significant without knowing the p?-value.
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Epidemiology Correlation & Regression

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Attribution:  Janet, E.A. Forrester, Kwan Ho Kenneth Chui, Steven Cohen, Michael D. Kneeland, Alice Tang, David Tybor. Epidemiology and Biostatistics 2010. (Tufts University OpenCourseWare), http://ocw.tufts.edu/Course/65/ (Accessed 3 May, 2014). License: Creative Commons BY-NC-SA
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