In this multicenter cluster randomized controlled trial stratified by school baseline prevalence of smoking will be randomly allocated to the control or intervention group. Control schools will receive normal smoking education and intrvention schools will receive a four year class-based curriculum intervention (22 Classroom lessons), reinforcement of smoke-free school policy, smoking cessation in parents, pupils, and teachers and information and annual meeting with parents. Study participants will be children aged 12 to 15 years old ; they will be followed to 2 years after high school. External evaluator and analyst will be blinded to school allocation. The aim of this study is to analyze the effectiveness of a complex intervention to reduce the prevalence of smoking at 3º ESO (14-15 yrs-old) and 2 years after high school (17-18 yrs-old) .
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
2,226
The ITACA intervention is a cognitive and social-influences approach to prevent tobacco consumption. The intervention is integrated in the curricula of the school, also schools are reinforced to follow a smoke-free school and strictly follow legislation about smoking in schools. The community component include annual meeting with adolescents parents and parents and teachers intensive group for smoking cessation.
IES Albuhaira
Muro, Baleare, Spain
IES Josep Miquel Guardia
Alaior, Balearic Islands, Spain
IES Alcudia
Alcúdia, Balearic Islands, Spain
IES Baltasar Porcel
Andratx, Balearic Islands, Spain
IES Llorenç Garcias i Font
Artà, Balearic Islands, Spain
IES Son Ferrer
Calvià, Balearic Islands, Spain
IES Capdepera
Capdepera, Balearic Islands, Spain
IES Maria Angels Cardona
Ciutadella, Balearic Islands, Spain
IES Josep Font i Trias
Esporles, Balearic Islands, Spain
IES Biel Martí
Ferreries, Balearic Islands, Spain
...and 10 more locations
Smoking prevalence of adolescents in each group
We will compare the smoking prevalence of adolescents in each group at six years against the usual null hypothesis of no difference between groups. We will use the Chi-squared test, taking into account the "variance inflation factor" of the adolescent cluster and intraclass correlation coefficient.
Time frame: six years
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