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. 2020 Jul;26(7):1456–1464. doi: 10.3201/eid2607.200225

Table. Results of multivariable analysis of risk for infection by food consumption from a case-control study during listeriosis outbreak, Germany 2018–2019* .

Food item Odds ratio (95% CI)† p value
Minced meat 42.4 (4.3–415.1) 0.001
Blood sausage 23.1 (4.3–123.5) <0.001
Cold cuts, including roast pork and Kassler 15.4 (2.9–82.1) 0.001
Edamer cheese 7.3 (1.6–32.8) 0.009
Smoked ham‡ 0.06 (0.0–0.4) 0.003
Hard cheese‡ 0.2 (0.0–0.9) 0.038

*Includes 40/41 cases and 99/155 controls that confirmed shopping at the implicated supermarket chain.
†Adjusted for age, gender, and residence in northern or southern region.
‡Smoked ham and hard cheese are confounders for cold cuts and Edamer cheese.