Objectives: To determine the prevalence of cardiovascular risk factors (CRF) in adolescents. Design: Descriptive and cross-sectional, multistage random sampling. Setting: Twelve state secondary schools, district of San Juan de Lurigancho, Lima-Peru. Participants: Adolescents. Interventions: We studied a sample of 277 adolescents 12 to 17 years old, 49,1% male, during August and November 2007. CRF studied were systolic / diastolic hypertension (≥95p by age, sex and height), dyslipidemia (hypercholesterolemia ≥200 mg /dL, hypertriglyceridemia ≥130 mg/dL, high LDL-c ≥130 mg/dL and low HDL-c <40mg/dL), smoking, sedentary lifestyle, obesity/abdominal obesity (body mass index ≥ 95p and waist circumference ≥90p by age and sex), inadequate diet, impaired fasting glucose (≥110 mg/dL) and family history of cardiovascular disease (CVD). Blood pressure measurement, anthropometric da...