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Master's Dissertation
DOI
10.11606/D.6.2006.tde-07032007-092601
Document
Author
Full name
Regina Tomie Ivata Bernal
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2006
Supervisor
Committee
Silva, Nilza Nunes da (President)
Barreto, Maria Cecilia Mendes
Cassiani, Silvia Helena de Bortoli
Title in Portuguese
Linhas telefônicas residenciais: uso em inquéritos epidemiológicos no Brasil
Keywords in Portuguese
Cadastro de telefones
Inquérito por amostragem
Inquérito por telefone
Método Randon Digital Dialing
Perfil do usuário de linhas telefônicas
Taxa de cobertura de linhas telefônicas
Abstract in Portuguese
Objetivos: Estudar as possibilidades de uso de cadastros de linhas telefônicas residenciais para implementação de inquéritos por amostragem. Descrever presença de vícios potenciais, associados às taxas de coberturas de LTR, nas principais variáveis que usualmente compõem o núcleo de informações de inquéritos epidemiológicos. Métodos: Com base nos dados da Pesquisa Nacional por Amostra de Domicílios (PNAD) no período de 1998 a 2003, exceto 2000, foram estimadas por intervalo de confiança de 95%, as médias e proporções. Nas análises dos dados considerou-se o plano de amostragem complexa. Resultados: No Brasil, houve um crescimento de 50% dos domicílios atendidos por LTR, no período. No entanto, essa evolução não ocorreu de forma uniforme no Brasil. Foram identificados diferentes perfis de usuários de LTR, sendo as principais características relacionadas com a escolaridade, a raça, a posse de um plano de saúde e a localização geográfica. Nas regiões com baixa cobertura de LTR podem ocorrer vícios nas estimativas de prevalências de doenças crônicas. Conclusão: O uso das linhas telefônicas residencias para a realização das entrevistas em inquéritos epidemiológicos mostrou-se viável para as unidades de federação com taxas de cobertura de LTR acima de 70%.
Title in English
Telephone surveys: its use in epidemiologic investigation in Brazil
Keywords in English
Coverage rates of telephone surveys
Method Randon Digital Dialing
Profiles of telephone users
Sampling frame of telephone interview
Survey sampling
Telephone survey
Abstract in English
Objectives: To study the possibilities to use sampling frame of telephone interview the implementation of survey sampling. To describe the presence of potential biases associated to with coverage rates of telephone surveys in the main variables that usually compose the information core of epidemiological investigations. Methods: From database of the National Household Sample Survey (PNAD) in the period between 1998 and 2003, except for 2000, the averages and proportions were estimated by a 95% confidence interval. In the statistics analysis , the complex sampling plan was considered. Results: In Brazil, it has been there was a 50% increase in the households served by telephone, during the studied period. However, this evolution did not occur in a uniform way. Different profiles of telephone users were identified, and the main characteristics were related to education, race, the health plans and the geographic location. The regions with low telephone coverage may introduce bias on the estimates of prevalence of chronic diseases. Conclusion: The use of telephone survey for the conduction of interviews during epidemiologic investigations could be suitable to be feasible for the federal units with coverage rates above 70%.
 
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Publishing Date
2007-05-25
 
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