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Primary outcome: COVID-19-positive incidence rates during follow-up
| Event | BCG group (incidence rates) | Placebo group (incidence rates) | p value | Odds ratio | 95% CI |
|---|---|---|---|---|---|
| Definite COVID-19 infection (CB-NAAT-positive cases) | 18 (7.3%) | 17 (6.8%) | 0.862 | 1.08 | 0.54–2.14 |
| Probable COVID-19 infection (symptom screening) | 15 (6.1%) | 36 (14.5%) | 0.003 | 0.38 | 0.20–0.72 |
