Table 1.

Univariate analysis of matched odds ratios for infection with Salmonella Coeln in the outbreak in Norway, November 2013. In addition to the food items listed in the table, cases and controls were asked specifically about consumption of fresh herbs and sprouts, cheese, rice, porridge, and eggs

Exposure	No. of cases (n = 7)	No. of controls (n = 24)	Matched OR	95% CI	P value
Ready-to-eat baby leaf mix	5	0	20	(2·7–∞)	0·002
Baby leaf salad	2	0	7·2	(0·6–∞)	0·125
Field salad	2	0	7·2	(0·6–∞)	0·125
Omelette	2	0	7·2	(0·6–∞)	0·125
Ready-to-eat rucola salad	3	1	5·6	(0·4–310)	0·281
Chicken	4	8	2·6	(0·3–32)	0·508
Iceberg salad	3	8	2·4	(0·3–31)	0·625

OR, Odds ratio; CI, confidence interval.