['To reduce tobacco use among adolescents.', 'Thirty schools in New Delhi, India, were randomly assigned to 3 conditions: school-based and family-based intervention, school-based intervention only, or control group. Students were in the seventh grade at pretest (N = 4,776). The smoking intervention included posters, booklets, classroom activities, debates, and a signature campaign. The family intervention involved home activities. The survey measured tobacco knowledge, attitudes, offers, use, and intentions.', 'Intervention students were significantly less likely than controls to have been offered, received, experimented with, or have intentions to use tobacco.'] Do tobacco and alcohol use outcomes of a school-based intervention in New Delhi?