Table 4. Test-negative analysis (odds of a positive COVID-19 test or a positive COVID-19 test and at least one moderate to severe symptom by vaccination status.
| Vaccination status | Cases COVID-19 test positive |
Controls COVID-19 test negative |
OR (95% CI) | aOR (95% CI) | |
|---|---|---|---|---|---|
| Test-negative analysis based on COVID-19 test results | Fully vaccinated | 76 | 1135 | 0.04 (0.03, 0.05) | 0.03 (0.03, 0.05) |
| Unvaccinated | 571 | 345 | |||
| Partially vaccinated | 48 | 306 | 0.10 (0.07, 0.13) | 0.08 (0.06, 0.12) | |
| Unvaccinated | 571 | 345 |
| Vaccination status | Cases COVID-19 test positive with >1 moderate to severe COVID symptoms |
Controls COVID-19 test positive without moderate to severe COVID symptoms and COVID-19 test negative |
OR (95% CI) | aOR (95% CI) | |
|---|---|---|---|---|---|
| Test-negative analysis based on COVID-19 test results and requiring at least one moderate to severe symptom | Fully vaccinated | 42 | 1199 | 0.25 (0.17, 0.36) | 0.28 (0.19, 0.41) |
| Unvaccinated | 108 | 769 | |||
| Partially vaccinated | 15 | 348 | 0.31 (0.18, 0.53) | 0.29 (0.16, 0.53) | |
| Unvaccinated | 108 | 769 |