Table 2. Number and percentage of exposed cases and controls, and adjusted odds ratios in multivariable model with interactions in an investigation of an outbreak of Salmonella Typhimurium sequence type 19 linked to pre-washed rocket salad, Sweden, September–November 2022.

Exposure	Cases (n = 54)		Controls (n = 434)		Final model with interaction
	n	%a	n	%a	aORb	95% CI	p value
Rocket salad and mixed salad bags	19	40	37	9	22	8.6–55	< 0.001
Rocket salad, no mixed salad bags	10	21	34	8	13	4.6–36	< 0.001
Mixed salad bags, no rocket salad	11	23	52	12	9.5	3.5–25	< 0.001
No rocket nor mixed salad bags	8	17	303	71	Reference
Grocery retailer A	48	89	327	75	3.1	1.0–9	0.045

aOR: adjusted odds ratio; CI: confidence interval.

^a Percentage exposed of those who answered the question.

^b Adjusted for age and sex and the other variables in the model.