Table 5

Trends in youth smoking prevalence: Minnesota campaign 1986 to 1990

Grades 1986 1990 Change in % from 1986-1990
Intervention (Minnesota)9th12.610.3−2.3
Control (Wisconsin)  9th15.815.9+0.1
Intervention versus control9th−3.2−5.6−2.4
  • Source: Murray et al.52