Had Sexual Intercourse For The First Time Before Age 13 Years
Illinois, High School Youth Risk Behavior Survey
Total | 10.7 (8.3–13.7) 3,844 | 9.4 (6.6–13.0) 2,900 | 6.7 (4.6–9.7) 2,144 | 6.3 (5.1–7.7) 2,722 | 6.3 (5.1–7.6) 3,078 | 5.2 (4.0–6.9) 2,856 | 3.2 (2.1–4.9) 2,759 | 3.9 (3.0–5.0) 4,089 | 3.3 (2.5–4.4) 2,618 |