title: Early predictive factors for intensive care unit readmission.
abstract: OBJECTIVE
  To predict readmission in intensive care unit analyzing the first 24 hours data after intensive care unit admission.
  
  
  METHODS
  The first intensive care unit admission of patients was analyzed from January to May 2009 in a mixed unit. Readmission to the unit was considered those during the same hospital stay or within 3 months after intensive care unit discharge. Deaths during the first admission were excluded. Demographic data, use of mechanical ventilation, and report of stay longer than 3 days were submitted to uni and multivariate analysis for readmission.
  
  
  RESULTS
  Five hundred seventy-seven patients were included (33 excluded deaths). The readmission group had 59 patients, while 518 patients were not readmitted. The lead time between the index admission and readmission was 9 (3-28) days (18 were readmitted in less than 3 days), and 10 died. Patients readmitted at least once to the intensive care unit had the differences below in comparison to the control group: older age: 75 (67-81) versus 67 (56-78) years, P<0.01; admission for respiratory insufficiency or sepsis: 33 versus 13%, P<0.01; medical admission: 49 versus 32%, P<0.05; higher SAPS II score: 27 (21-35) versus 23 (18-29) points, P<0.01; Charlson index: 2 (1-2) versus 1 (0-2) points, P<0.01; first ICU stay longer than 3 days: 35 versus 23%, P<0.01. After logistic regression, higher age, Charlson index and admission for respiratory and sepsis were independently associated to readmissions in intensive care unit.
  
  
  CONCLUSIONS
  Age, comorbidities and respiratory- and/or sepsis-related admission are associated with increased readmission risk in the studied sample.
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: André Miguel
authors.initials: AM
authors.lastname: Japiassú
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Michel Schatkin
authors.initials: MS
authors.lastname: Cukier
authors.affiliation: Unidade de Terapia Intensiva, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Ana Gabriela Coelho de Magalhães
authors.initials: AG
authors.lastname: Queiroz
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Carlos Roberto Naegeli
authors.initials: CR
authors.lastname: Gondim
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Guilherme Loures de Araújo
authors.initials: GL
authors.lastname: Penna
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Gustavo Ferreira
authors.initials: GF
authors.lastname: Almeida
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Pedro Martins Pereira
authors.initials: PM
authors.lastname: Kurtz
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: André Salgado
authors.initials: AS
authors.lastname: Rodrigues
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Márcia Barbosa de
authors.initials: MB
authors.lastname: Freitas
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Ronaldo Vegni E
authors.initials: RV
authors.lastname: Souza
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Paula Araújo
authors.initials: PA
authors.lastname: Rosa
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Clovis Jean da Cruz
authors.initials: CJ
authors.lastname: Faria
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Luis Eduardo Fonseca
authors.initials: LE
authors.lastname: Drumond
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Marcelo
authors.initials: M
authors.lastname: Kalichsztein
authors.affiliation: Unidade de Tratamento Intensivo, Casa de Saúde São José, Rio de Janeiro, RJ, Brasil.
authors.forename: Gustavo Freitas
authors.initials: GF
authors.lastname: Nobre