Age (y) and Vaccination status | Number | % | ORM-H (95% CI) | Vaccine Effectiveness (95% CI) | ||
---|---|---|---|---|---|---|
Cases (n = 50) | Controls (n = 200) | Cases | Control | |||
All ages (9 m-52y) | ||||||
Vaccinated | 25 | 127 | 61 | 77 | 0.36 (0.15–0.83) | 64 (17–85) |
Not vaccinated | 16 | 37 | 39 | 23 | ||
9 m-5y | ||||||
Vaccinated | 16 | 91 | 52 | 75 | 0.30 (0.12–0.76) | 70 (24–88) |
Not vaccinated | 15 | 30 | 48 | 25 | ||
6-12y | ||||||
Vaccinated | 4 | 18 | 80 | 75 | 0.33 (0.02–5.3) | 67 (0–98)a |
Not vaccinated | 1 | 6 | 20 | 25 | ||
13-52y | ||||||
Vaccinated | 5 | 18 | 100 | 95 | -b | -b |
Not vaccinated | 0 | 1 | 0 | 5 |