Plano amostral da pesquisa nacional sobre comportamento sexual e percepções sobre HIV/Aids, 2005
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2008-06-01
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OBJECTIVE: To describe the sampling plan and estimation methods used to collect and analyze data in the survey Sexual Behavior and Perceptions of the Brazilian Population concerning HIV/AIDS in 2005. METHODS: The study presents the decisions that were made concerning population definition, strata of interest to the survey and to the sampling plan, main procedures for data analysis and sample performance in the field. SAMPLING RESULTS: A probabilistic plan was designed with 5,040 sampling units obtained from the Brazilian population, with individuals aged between 16 and 65 years living in large Brazilian urban centers. It is a complex sampling plan distributed over eight main estimation domains, designed in multiple stages. A man or a woman was interviewed in the last stage. Each interviewed unit and each household have specific probability of belonging to the sample.
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Sampling studies Estimation techniques Data interpretation Statistical Data collection Questionnaires Population studies in public Health Brazil Cross-sectional studies Amostragem Técnicas de estimação Interpretação estatística de dados Coleta de dados Questionários Estudos populacionais em saúde Pública Brasil Estudos transversais