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Vaccine effectiveness in preventing COVID-19 deaths, Tamil Nadu, India
| COVID-19 vaccine doses | Number of police personnel (n=117,524) | Number of COVID-19 deaths among police personnel | Incidence of COVID-19 deaths (per 1000) | Relative risk (95% CI) | Vaccine effectiveness (95% CI) |
|---|---|---|---|---|---|
| 0 | 17,059 | 20 | 1.17 | 1.00 | - |
| 1 | 32,792 | 7 | 0.21 | 0.18 (0.08-0.43) | 82 (57-92) |
| 2 | 67,673 | 4 | 0.06 | 0.05 (0.02-0.154) | 95 (85-98) |
CI, confidence interval
