title: [The cost impact of a private insurer's own network upon outpatient care].
abstract: OBJECTIVE
  Econometric analysis that seeks to measure the cost impact of a private insurer's own network upon outpatient care for its policyholders, own network refers to vertical integrated providers. The purpose is to assess whether greater use of its own network reduces the costs that the insurer incurred, according to what specialized literature suggests.
  
  
  METHODS
  Study based on a multiple linear regression on data from a private insurer. The dependent variable is per capita cost of outpatient services. The explanatory variables are adherence to the own network and a number of variables to specify better the model.
  
  
  RESULTS
  With all other factors constant, in relation to covering the costs of outpatient care, it is noted that policyholders with high adhesion to their own network are less expensive than whose with low adhesion.
  
  
  CONCLUSIONS
  The decision-making process about what services and what grade should be applied to each person by special conditions of the offer as the aggregation of human resources in own offices under formal rules has an impact on health care costs. Particular supply conditions cause variations in how resources are used.
authors.affiliation: Escola de Artes, Ciências e Humanidades, Universidade de Sao Paulo, Sao Paulo, Brasil.
authors.forename: Mónica Márcela
authors.initials: MM
authors.lastname: Zuluaga-Ramírez
authors.affiliation: Escola de Artes, Ciências e Humanidades, Universidade de Sao Paulo, Sao Paulo, Brasil.
authors.forename: Terry
authors.initials: T
authors.lastname: Macedo-Ivanauskas
authors.affiliation: Escola de Artes, Ciências e Humanidades, Universidade de Sao Paulo, Sao Paulo, Brasil.
authors.forename: Fernando
authors.initials: F
authors.lastname: Fagundes-Ferreira
authors.affiliation: Escola de Artes, Ciências e Humanidades, Universidade de Sao Paulo, Sao Paulo, Brasil.
authors.forename: Camilo
authors.initials: C
authors.lastname: Rodrigues-Neto
mesh_terms: D000553:Ambulatory Care / Q000191:economics* / Q000706:statistics & numerical data; D003105:Colombia; D003362:Cost-Benefit Analysis; D017048:Health Care Costs; D006801:Humans; D007343:Insurance Carriers / Q000191:economics*; D016014:Linear Models; D017059:Models, Econometric