TABLE 3. Multivariate log-binomial regression models comparing risk for SARS-CoV-2 infection, by job role among employees at a fruit grower — Okanogan County, Washington, May–August 2020.

Measure	Relative risk (95% CI)	p-value
Model for warehouse employees, assessing job role and work site*
Forklift operator	Reference	—
Packing and sorting fruit	2.7 (1.4–5.2)	0.002
Fruit packing support	2.4 (1.2–4.7)	0.015
Office	0.6 (0.2–1.9)	0.347
Other warehouse (e.g., maintenance, cleaning, transportation)	0.8 (0.3–1.9)	0.552
Work site A	Reference	—
Work site B	6.8 (2.8–16.7)	<0.001
Work site C	5.8 (2.5–13.9)	<0.001
Model for all employees, assessing job role and housing location†
Forklift operator	Reference	—
Packing and sorting fruit	2.6 (1.4–5.0)	0.003
Fruit packing support	2.3 (1.1–4.5)	0.020
Office	0.6 (0.2–2.1)	0.404
Other warehouse (e.g., maintenance, cleaning, transportation)	0.7 (0.3–1.7)	0.433
Orchard work	1.2 (0.6–2.2)	0.663
Lives in community	2.8 (2.1–3.8)	<0.001

Abbreviation: CI = confidence interval.

* Housing location was not included in this model because all warehouse workers resided in the community.

^† Work site was not included in this model because of collinearity for orchard workers.