Figure 2From: The application of observational data in translational medicine: analyzing tobacco-use behaviors of adolescentsAge-Adjusted Availability,Risk Perception and Smoking Prevalence in Italian students, from 2000 to 2009 (Joinpoint Trend). 1) perceived availability, 2) perceived risk, 3) prevalence of lifetime use, 4) last 30-days use, 5) occasional smokers, 6) moderate smokers, 7) heavy smokers. * Indicates a significant Annual Percent Change (APC).Back to article page