• J González Lama, J R Calvo Fernández, and P Prats León.
• Especialista en Medicina Familiar y Comunitaria. Especialista en Medicina Preventiva y Salud Pública. Máster en Salud Pública. Consultorio Doña Mencía, ZBS. Cabra (Córdoba). España. jegonla@wandoo.es
• Aten Primaria. 2002 Sep 15; 30 (4): 214219214-9.

ObjectiveDescribe the risk behavior relationships existing in school adolescents between themselves and with the place of residence.DesignCross-sectional descriptive study.ParticipantsSchool students from Cabra (semi-rural, 1319 students) and from one high school in Las Palmas de Gran Canaria (urban: 1,751 students).Sample Populationn=738 (368/370). Sampling unit classroom. MEASUREMENTS AND MAIN RESULTS. Anonymous, self-filled questionnaire, with several subjects: demographic data, traffic-related risk conducts, alcohol consumption, tobacco, other drugs, sexuality, physical exercise and dietetic habits.Selection Criteriaattendance at class on the day of the questionnaire and age 15-21. The relationship between variables was studied by logistical regression and multiple correspondence analysis (MCA); odds ratio (OR: logistical regression) with 95% confidence intervals (CI) were calculated. Median age: Cabra 17.6 (CI, 17.5-17.8), Las Palmas 16.4 (CI, 16.2-16.5). Those living in Las Palmas have a higher risk of heavy drinking on weekends (OR, 3.2; CI, 1.9-5.1), of being offered drugs (OR, 4.5; CI, 3.1-6.5) and of consuming them (OR, 4.1; CI, 2.1-8.3), as well as of having sexual intercourse (OR, 2.5; CI, 1.6-3.8). In the MCA tobacco, alcohol and other drug use, having sexual intercourse and not doing regular physical exercise were closely-located within themselves.ConclusionsRisk behaviours are interrelated and influenced by the habitat, and start to appear at the beginning of the adolescence.

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