Table 3.
Effectiveness of post-exposure prophylaxis measures in outbreaks studied. Catalonia, 2006–2012.
| Post-exposure prophylaxis | Exposed persons | Secondary cases | Rate of secondary cases (%) | Rate Ratio (95% CI) | Effectiveness (95% CI) | p |
|---|---|---|---|---|---|---|
| Any hepatitis A vaccine | 2.381 | 17 | 0.71 | 0.024 (0.014–0.038) | 97.6 (96.2–98.6) | <0.01 |
| Hepatitis A vaccine | 2.316 | 17 | 0.73 | 0.024 (0.014–0.039) | 97.6 (96.1–98.6) | <0.01 |
| Hepatitis A+B vaccine | 65 | 0 | 0 | 0.00 (0.00–0.154) | 100 (84.6–100) | <0.01 |
| Immune globulin | 190 | 1 | 0.53 | 0.017 (0.001–0.087) | 98.3 (91.3–99.9) | <0.01 |
| No post-exposure prophylaxis | 611 | 184 | 30.11 | Ref. | Ref. | |
| Total | 3.182 | 202 | 6.35 |