OBJECTIVE: To describe opinions and attitudes concerning sexuality of the Brazilian urban population. METHODS: A population survey was carried out in 2005 on a representative sample of 5,040 interviewees. An analysis of the attitudes regarding sexual initiation and sexual education of teenagers, considering gender, age, schooling, income, marital status, color, geographic region and opinion on fidelity, homosexuality, and masturbation. The results were contrasted with a similar survey carried out in 1998, when possible. RESULTS: Most interviewees selected the “sex is […]