PhD thesis: Effectiveness of anti-smoking intervention programs in teenagers


On 27th January, 2016, the physician Ana Belén Navarrete Guillen has defended at the University of Jaén, his doctoral thesis titled “Effectiveness in primary care of a nonpharmacological advanced anti-smoking intervention versus a brief intervention in teenagers“. Dr. Carmen Alvarez Nieto (member of the research group CuiDsalud) and Dr. Alejandro Pérez Milena (Primary Care Centre “El Valle”, Jaén) were the supervisors of this thesis.

This thesis is framed within the research topic: Health in childhood and adolescence.

Abstract. The aim was to determine the effectiveness of two motivational interventions for smoking cessation in teenagers. A multicentre randomized experimental study was conducted on 5 Secondary Schools. Individual interventions were proposed to smokers teenagers who wanted to quit. Family doctors developed the intervention in the Secondary Schools through a stratified random assignment to the intensive and brief intervention. 92 teenagers have participated with no differences at the beginning of interventions. In the sample, 82% were daily smokers with low dependency (62%) and high / moderate motivation for cessation (88%). A 47% received the intensive intervention; reaching smoke cessation of a 64% ± 5.0 in the first month (20% better in intensive intervention) a 42% ± 5.2 at the sixth month and a 27% ± 4.6 at 12 months (no difference). Brief intervention appears to be more efficient, while more research would be warranted to determine the profile of the teenager who would benefit from intensive intervention.

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