Age distribution of the study population
| Age, years (n) | % of total |
|---|---|
| One patient did not have an age recorded. | |
| 16–19 (54) | 11.4 |
| 20–23 (114) | 24.1 |
| 24–27 (94) | 19.9 |
| 28–31 (62) | 13.1 |
| 32–35 (59) | 12.5 |
| 36–39 (30) | 6.3 |
| 40–43 (27) | 5.7 |
| 44–47 (14) | 3.0 |
| 48 or older (19) | 4.0 |