Perry C L, Kelder S H, Murray D M, Klepp K I
School of Public Health, University of Minnesota, Minneapolis 55454-1015.
Am J Public Health. 1992 Sep;82(9):1210-6. doi: 10.2105/ajph.82.9.1210.
The Class of 1989 Study is part of the Minnesota Heart Health Program (MHHP), a populationwide research and demonstration project designed to reduce cardiovascular disease in three educated communities from 1980 to 1993. This paper describes an intensive, school-based behavioral intervention on cigarette smoking, comparing long-term outcomes in one of the intervention communities with those in a matched reference community.
Beginning in sixth grade (1983), seven annual waves of cohort and cross-sectional behavioral measurements were taken from one MHHP intervention community and its matched pair. All students in each community were eligible to participate (baseline n = 2401). Self-reported data collected at each period described prevalence and intensity of cigarette smoking.
There were no differences at baseline for either weekly smoking prevalence or intensity of smoking. Throughout the follow-up period, however, smoking rates as determined by these measures were significantly lower in the intervention community: 14.6% of students were weekly smokers at the end of high school compared with 24.1% in the reference community.
These results suggest that multiple intervention components such as behavioral education in schools, booster programs to sustain training, and complementary communitywide strategies may all be needed for lasting reductions in adolescent tobacco use.
1989届研究是明尼苏达心脏健康项目（MHHP）的一部分，该项目是一个旨在从1980年至1993年在三个受过教育的社区中减少心血管疾病的全人群研究与示范项目。本文描述了一项针对吸烟的、以学校为基础的强化行为干预措施，并比较了其中一个干预社区与一个匹配的对照社区的长期结果。
从六年级（1983年）开始，对一个MHHP干预社区及其匹配社区进行了七次年度队列和横断面行为测量。每个社区的所有学生都有资格参与（基线时n = 2401）。在每个时期收集的自我报告数据描述了吸烟的流行率和强度。
在基线时，每周吸烟流行率或吸烟强度均无差异。然而，在整个随访期间，通过这些测量确定的干预社区吸烟率显著较低：高中结束时，14.6%的学生为每周吸烟者，而对照社区为24.1%。
这些结果表明，可能需要多种干预措施，如学校行为教育、维持培训的强化项目以及全社区的补充策略，才能持久减少青少年烟草使用。
