Table 3 Summary of multivariable logistic regression models assessing the association between plasma neutralizing capacity at T9 and protection against symptomatic and asymptomatic infections over the T9 – T10 period (Jun 2022 – Dec 2022) in vaccinated individuals

From: Determinants of antibody levels and protection against omicron BQ.1/XBB breakthrough infection

Analyte

HR

Lower CI

Upper CI

P-value

D614G

0.27

0.08

0.78

0.022

BA. 1

0.32

0.10

0.90

0.036

BA. 4. 5

0.25

0.06

0.86

0.035

BQ. 1. 1

0.19

0.02

1.09

0.079

  1. The D614G variant corresponds to the original Wuhan strain of the virus. Logistic regression models were adjusted by age, comorbidities, hybrid immunity, number of infections, number of doses, sex, smoking, and time since last exposure.