Participants
Baseline: 2719 (intervention ),6410 (control).
Age: 11 -17 years (grades 7-10).
Gender: 48% M (intervention), 52% M (control).
Ethnicity: Not stated.
Baseline smoking data: Rates of smokingover previous 12m at outset. Health programme =9.7%, fitness programme =9.5%, social skills =12.5%, control =14.4%