Table 3 Effect of the Omicron VOC relative to the Delta VOC

From: Household transmission of the SARS-CoV-2 Omicron variant in Denmark

 

Unvaccinated

(Contact)

Fully vaccinated

(Contact)

Booster vaccinated

(Contact)

Omicron households

1.10

(1.00–1.21)

2.38

(2.23–2.54)

3.20

(2.67–3.83)

Delta households

Ref

(.)

Ref

(.)

Ref

(.)

  1. This table shows odds ratio estimates for the effect of living in a household infected with the Omicron VOC relative to the Delta VOC when comparing contacts with the same vaccination status. Number of observations = 61,002; Number of households = 26,675. Column 1 shows the relative transmission of the Omicron VOC, conditional on being unvaccinated. Column 2 shows the relative transmission of the Omicron VOC, conditional on being fully vaccinated. Column 3 shows the relative transmission of the Omicron VOC, conditional on being booster vaccinated. Note, all estimates are from the same model, but with a different reference category across column 1-3. The estimates are adjusted for age and sex of the primary case, age and sex of the contact, and household size. The estimates are furthermore adjusted for vaccine status of the contact interacted with the household variant, and the vaccine status of the primary case. 95%-confidence intervals are shown in parentheses with cluster-robust standard errors clustered on the household level. The odds ratio estimates for the full model are presented in Appendix Table S18, column I.
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