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Effects of a school-based prevention programme on smoking in early adolescence: a 6-month follow-up of the 'Eigenstandig werden' cluster randomised trial.

Abstract：

OBJECTIVES:To test the effects of a school-based prevention programme on students' smoking-related behaviour, attitudes and knowledge 6 months after implementation over 2 school-years has ended. DESIGN:Two-arm prospective cluster randomised controlled trial with a follow-up survey 6 months after end of programme implementation, that is, 26 months after baseline. SETTING:45 public secondary schools from four federal states in Germany (Bremen, Hesse, North Rhine-Westphalia, Schleswig-Holstein). PARTICIPANTS:A total of 3444 students from 172 classes with a mean age of 10.37 years (SD=0.59) and 47.9% girls at baseline. Analysis sample with follow-up up data merged to baseline data comprises 2513 datasets (73%). INTERVENTION:'Eigenständig werden 5+6', a school-based prevention programme for grades 5 and 6 to enhance substance-specific and general life skills, consisting of 14 units (à 90 min) and two workshops (4-6 h) being taught over a time period of 2 school-years by trained teachers. OUTCOME MEASURES:Lifetime and current smoking, incidence of smoking in baseline never smokers, smoking-related knowledge, attitudes, perceived norms of smoking and self-efficacy to refuse cigarette offers were assessed in students. RESULTS:6 months after the end of programme implementation, students of intervention classes showed significantly lower rates for lifetime smoking (adjusted OR=0.63; 95% CI 0.41 to 0.96; p=0.026) and incidence of smoking (adjusted OR=0.66; 95% CI 0.43 to 1.00; p=0.047), a higher increase of smoking-related knowledge (adjusted β=9.38; 95% CI 6.73 to 12.04; p<0.001) and a greater change in attitudes towards a more critical perception of risks and disadvantages of smoking (adjusted β=0.10; 95% CI 0.03 to 0.16; p=0.002). No group differences were found for current smoking, perceived norms of smoking and self-efficacy to refuse cigarette offers. CONCLUSIONS:Participation in the school-based prevention programme 'Eigenständig werden 5+6' may have small effects on smoking behaviour and attitudes and a moderate effect on smoking-related knowledge. TRIAL REGISTRATION:Current Controlled Trials ISRCTN99442407.

journal_name

BMJ Open

journal_title

BMJ open

authors

Isensee B,Hansen J,Maruska K,Hanewinkel R

doi

10.1136/bmjopen-2013-004422

subject

Has Abstract

pub_date

2014-01-21 00:00:00

pages

e004422

issue

1

issn

2044-6055

pii

bmjopen-2013-004422

journal_volume

4

pub_type

杂志文章,随机对照试验

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