title: Time trend of lack of access to health services in Brazil, 1998-2013.
abstract: to analyze the time trend on the demand and lack of access to public health services in Brazil.
  
  
  
  this is a panel of cross-sectional studies with data of the National Household Sample Survey (1998, 2003, 2008) and the National Health Survey (2013); the prevalence of demand and lack of access within the fifteen days prior to the survey was estimated; Poisson regression was used for trend analysis.
  
  
  
  the demand for health services increased from 13.0% (95%CI 12.3;13.7), in 1998, to 15.0% (95%CI 14.5;15.4), in 2013; the lack of access remained stable, being of 3.7% (95%CI 3.2;4.2) in 1998 and 4.5% (95%CI 4.0;5.0) in 2013.
  
  
  
  the increase in demand for health services and the stability in the lack of access indicate improvements in the Brazilian public health system performance; additional efforts are required to ensure universal access to public health services in Brazil.
authors.affiliation: Universidade Federal de Pelotas, Departamento de Enfermagem, Pelotas-RS, Brasil.
authors.forename: Bruno Pereira
authors.initials: BP
authors.lastname: Nunes
authors.affiliation: Universidade Federal de Pelotas, Programa de Pós-Graduação em Epidemiologia, Pelotas-RS, Brasil.
authors.forename: Thaynã Ramos
authors.initials: TR
authors.lastname: Flores
authors.affiliation: Instituto de Pesquisa Econômica Aplicada, Diretoria de Estudos e Políticas Sociais, Brasília-DF, Brasil.
authors.forename: Leila Posenato
authors.initials: LP
authors.lastname: Garcia
authors.affiliation: Universidade de São Paulo, Departamento de Epidemiologia, São Paulo-SP, Brasil.
authors.forename: Alexandre Dias Porto
authors.initials: AD
authors.lastname: Chiavegatto
authors.affiliation: Universidade Federal de Pelotas, Programa de Pós-Graduação em Enfermagem, Pelotas-RS, Brasil.
authors.forename: Elaine
authors.initials: E
authors.lastname: Thumé
authors.affiliation: Universidade Federal de Pelotas, Programa de Pós-Graduação em Epidemiologia, Pelotas-RS, Brasil.
authors.forename: Luiz Augusto
authors.initials: LA
authors.lastname: Facchini
mesh_terms: D017677:Age Distribution; D001938:Brazil; D003430:Cross-Sectional Studies; D005260:Female; D006296:Health Services; D006297:Health Services Accessibility / Q000639:trends*; D006301:Health Services Needs and Demand / Q000639:trends*; D006306:Health Surveys; D006801:Humans; D008297:Male; D017678:Sex Distribution; D012959:Socioeconomic Factors; D013997:Time Factors