Table 3.

Exclusion criteria in the TAAG trial

School exclusion criteria Unwilling or unable to respond to and report medical emergencies that may occur on school grounds or during student participation in school-sponsored activities Plans to close or merge with another school within 3 years Fewer than 90 girls in the 8th grade Expected transience rate ≥28% in any given year or ≥35% over 2 years Does not offer physical education each semester for all grades Fewer than 2 (year-round schools) or 3 (semester-based schools) physical education classes per week Participation in pilot testing of study materials

Student exclusion criteria Unable to read and understand questions written in English Been told by a doctor to avoid exercise for health reasons Medical conditions including: muscle, bone, or joint problems heart problem that requires a limitation in physical activity fainting with exercise in the past 6 months uncontrolled asthma very high blood pressure not controlled on medication diabetes with frequent very low or very high blood glucose levels thyroid problems not controlled with medication seizures not controlled with medication sickle cell disease cystic fibrosis anorexia nervosa severe kidney problems severe liver problems blood condition that increases the risk of bleeding Parent unwilling or unable to give informed consent Girl unwilling to assent to measurement