Abstract
Objectives: Previous studies on part-time work and substance use suggest that those teenagers working longer hours during the school year use cigarettes more frequently than those working less or not at all. The purpose of this study was to investigate whether age moderates the relationship between part-time work hours and smoking status.
Methods: This 1999 study consisted of a cross-sectional survey of 4,297 junior high and high school students aged 13 to 19 from 111 randomly selected schools in Ontario.
Results: Compared to not working at all, moderate (11 to 20 hours/week) to long (21+ hours) work hours was more strongly associated with the probability of being a smoker among young teenagers (13 to 16 years old). Work intensity was only weakly associated with cigarette use in late adolescence (17 to 19 years old).
Conclusions: Working longer hours during school is associated with cigarette use, particularly among young teenagers. Although these cross-sectional data prohibit any firm conclusions regarding causality, the strong association observed among young teenagers increases the plausibility of early work transition being a risk factor for initiating smoking.
Résumé
Objectifs: Selon les études antérieures sur le travail à temps partiel et la consommation d’intoxicants, les adolescents qui travaillent de longues heures durant l’année scolaire fument plus souvent la cigarette que ceux qui travaillent moins ou pas du tout. Nous avons voulu déterminer si l’âge a un effet modérateur sur la relation entre le travail à temps partiel et le fait d’être ou non un fumeur.
Méthode: Nous avons mené en 1999 une enquête transversale auprès de 4 297 élèves de 13 à 19 ans dans 111 écoles secondaires ontariennes de premier et de deuxième cycles sélectionnées au hasard.
Résultats: Comparée au fait de ne pas avoir d’emploi, une semaine de travail moyenne (11 à 20 heures) ou longue (21 heures et plus) était plus fortement associée à la probabilité d’être un fumeur chez les jeunes adolescents (13 à 16 ans). L’intensité du travail n’était que faiblement associée au tabagisme chez les adolescents plus vieux (17 à 19 ans).
Conclusion: Les longues heures de travail durant l’année scolaire sont associées à l’usage de la cigarette, particulièrement chez les jeunes adolescents. Bien qu’il s’agisse de données transversales qui empêchent de conclure avec certitude à une relation causale, la forte association observée chez les jeunes adolescents accroît la plausibilité que l’intégration précoce au marché du travail soit un facteur de risque pour l’initiation au tabagisme.
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