Effect of health promotion school model on smoking prevention and control in secondary school students

Objective To evaluate the effect of health promotion school model smoking prevention and control in adolescence.Methods A cluster randomized control trial was conducted among the 2 343 adolescents in four secondary schools in Huangpu district of Guangzhou and the intervention effect was evaluated after one year.Results The average score of smoking-related knowledge for the experimental group increased from 910 at baseline to 1115 after one year while it increased from 811 to 915 for the control group;and the rise was higher in the experimental group than in the control group.At the baseline,the prevalence of experimental smoking in the control group and the experimemal group was 21.5% and 18.6% respectively,and the difference between them was not significant(P<0.05).But after one year of the intervention,the prevalence of experimental smoking increased to 21.5% in the intervention group while that to 25.8% in the control group,and the difference between them was statistically significant(P<0.05).Similarly,there was no significant difference for the prevalence of weekly smoking between the two groups at baseline(5.1% in the control group vs.4.1% in the experimental group,P>0.05),but a significant difference was obtained after one year of the intervention(9.8% in the control group vs.5.3% in the experimental group,P<0.001).Concurrently,the prevalence of current smoking increased from 3.88% at the baseline to 7.27% for the control group while it did from 2.54% to 4.26% for the experimental group after one-year intervention,and the increase of the later was lower than the former.The prevalence of quitting smoking in the regular smokers of the control group decreased from 72.5% at the baseline to 6516%after one-year intervention,on the contrary,the prevalence of quitting smoking increased in the experimental group.Conclusion The intervention measures could improve the students' smoking-related knowledge,and partly prohibited the increasing of smoking prevalence among them,buthad less impact on smoking-related attitude.Therefore,it is applicable and valuable for us to prevent and control smoking among Chinese adolescents with health promotion school model.