Table 3.
Multivariate analyses for breakthrough infection post-vaccination considering the relationship to the university. Univariate and multivariate models considering COVID-19 infection as the dependent variable.
| COVID-19 positive (n = 179) |
COVID-19 negative (n = 7458) |
Univariate OR (95% CI) |
Unadjusted P-value |
Multivariate OR* (95% CI) |
Adjusted* P-value |
|
|---|---|---|---|---|---|---|
| N (%) | N (%) | |||||
| Employees | 91 (5.6) | 1,534 (94.4) | 1 | 1 | ||
| Students | 88 (1.5) | 5,924 (98.5) | 0.250 (0.186–0.337) | <.001 | 0.161 (0.086–0.301) | <.001 |
*Regression analysis adjusting for sex, age, and vaccine brand. OR, Odds ratio; CI, confidence interval.