[Associations between family history of allergy, exposure to tobacco smoke, active smoking, obesity, and asthma in adolescents].

Objective: The relationships between asthma in adolescents and various environmental and social exposures needs to be clarified. The aim of this study was to determine the association between family history of allergy, passive or active tobacco smoking, obesity, and asthma in adolescents.

Subjects And Methods: A population-based case-control study was carried out.