Table 1.
Rochester Cohort (n=887) | San Diego Cohort (n=542) | |
---|---|---|
| ||
Median age in years at enrollment | 15 (13 – 17) | 23 (22 – 27) |
| ||
Median age in years at most recent vaccination | 10 (5 – 12) | 19 (18 – 21) |
| ||
Years since most recent vaccination | 6.4 (4.6 – 8.5) | 3.0 (2.2 – 3.9) |
| ||
Gender | ||
Male Female |
487 (55%) 400 (45%) |
394 (73%) 148 (27%) |