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Volume 12, Number 11—November 2006
Research

Clostridium difficile PCR Ribotypes in Calves, Canada

Alexander Rodriguez-Palacios*Comments to Author , Henry R. Stämpfli*, Todd Duffield*, Andrew S. Peregrine*, Lise A. Trotz-Williams*, Luis G. Arroyo*, Jon S. Brazier†, and J. Scott Weese*
Author affiliations: *University of Guelph, Guelph, Ontario, Canada; †University Hospital of Wales, Cardiff, United Kingdom3

Main Article

Table 1

Estimated odds ratios for a calf to have a positive toxin A/B ELISA result, southern Ontario, Canada, 2004*

Pairwise comparison Odds ratio 95% CI Adjusted Tukey p values
May vs August† 3.62 1.8–8.3 0.007
June vs August† 3.17 1.3–7.7 0.029
July vs August† 2.58 1.2–5.5 0.038
May vs July 1.41 0.7–2.8 0.59
June vs July 1.23 0.6–2.6 0.85
May vs June 1.14 0.5–2.6 0.95

*CI, confidence interval. The number of positive toxin A/B ELISA test results and calves sampled per month was May, 23/57; June, 16/41; July, 34/105; and August, 12/75. August data include 2 observations from September.†Statistically significant.

*CI, confidence interval. The number of positive toxin A/B ELISA test results and calves sampled per month was May, 23/57; June, 16/41; July, 34/105; and August, 12/75. August data include 2 observations from September.†Statistically significant.

Main Article

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Page updated: October 14, 2011
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