Table 2. Vaccination status and vaccine effectiveness estimates for notified measles cases and matched controls stratified by age group, Australia, 2006–2012.
| Age (years) | Doses | Number of cases (%) n = 189 |
Number of controls (%) n = 3 780 |
VE% (95% CI) |
|---|---|---|---|---|
| 0–5 | 0 | 75 (39.7) | 334 (8.8) | – |
| 1 | 11 (5.8) | 1206 (31.9) | 97.9 (95.8–98.9) | |
| 2 | 1 (0.5) | 200 (5.3) | 99.7 (95.5–100.0) | |
| 6–10 | 0 | 53 (28.0) | 55 (1.5) | – |
| 1 | 2 (1.1) | 104 (2.8) | 98.6 (91.8–99.8) | |
| 2 | 3 (1.6) | 1001 (26.5) | 99.8 (99.0–100.0) | |
| 11–15 | 0 | 32 (16.9) | 48 (1.3) | – |
| 1 | 9 (4.8) | 93 (2.5) | 82.7 (58.9–92.7) | |
| 2 | 3 (1.6) | 739 (19.6) | 99.3 (97.5–99.8) |
CI, confidence interval; VE, vaccine effectiveness.