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Revista Española de Salud Pública

versión On-line ISSN 2173-9110versión impresa ISSN 1135-5727


LEIJS, Ingrid et al. Educational intervention in schools to prevent smoking: evaluation of the process. Rev. Esp. Salud Publica [online]. 1998, vol.72, n.4, pp.303-318. ISSN 2173-9110.

BACKGROUND: the published data on the effectiveness of programs in schools to prevent addiction to tobacco are not consistent. These programs have not been sufficiently studied, and their variables give rise to confusion. The aim of this study was to evaluate the process of educational action taken in schools. METHOD: student leaders and teachers, who were trained and given guides, developed a socially based program. Two students selected at random from each class were interviewed, using a validated and directed questionnaire. A total of 318 children were interviewed. The Kappa Index was used to measure confidence, and the Inter-Class Coefficient of Correlation and Pearson’s Coefficient were used together with analysis of individual differences to compare the data for program adjustment, as supplied by pupils and teachers. RESULTS: mean adjustment per class was 30.07 points (48 = 100% adjustment). 26% of children were unable to mention any alternative to the advantages of smoking, 71.7% were unaware of the frequency of consumption amongst adults and 19.5% were unable to mention any of the tricks used in cigarette advertising. Less than half had performed psychodrama on this subject, as was required. The ICC was 0.21, Pearson’s Coefficient was 0.25 (p = 0.02) and the interval of agreement between the descriptions of teachers and students was 6.93 points (-1.70 to 5.23). CONCLUSIONS: the degree to which implementation complied with the proposed model of program was insufficient. We found little agreement between the self-assessment of teachers and the score attained by pupils in compliance with the program. It is essential that this process be evaluated for its impact to be evaluated correctly.

Palabras clave : Process Evaluation; Tobacco; Prevention of smoking; School Programmes; Health Education.

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