Volume 5, Number 3—June 1999
Factory Outbreak of Escherichia coli O157:H7 Infection in Japan
|Food||Case-patients exposed/total (%)||Controls exposed/total (%)||Odds ratioa (95% CI)||p value|
|Radish sprout salad||17/29(58.6)||64/164(39.0)||2.21(0.99-4.94)||0.08|
|Boiled beef with soy sauce||8/28(28.6)||24/152(15.8)||2.13(0.84-5.40)||0.18|
aOdds ratio>2.00; CI: confidence interval.
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