title: [Evolution of mortality in severe chest trauma in the elderly patient].
abstract: BACKGROUND
  Persons older than 65 years represent about 30% of all cases requiring care for traumatic injury, and is the fifth leading cause of death. Thus, it is considered important to search for epidemiological parameters that can identify this population group.
  
  
  METHODS
  A retrospective, observational, and comparative study was conducted on patients aged 65 years and over admitted to the Intensive Care Unit of tertiary hospital with a primary diagnosis of severe chest trauma between January 1992 and January 2012. A logistic regression was performed to determine the probability of hospital death in relation to the year of hospitalisation.
  
  
  RESULTS
  The cohort included 235 patients. Univariate logistic regression analysis showed a gradual decrease in the probability of death over the years, with an OR of 0.95 [95% CI; 0.90 to 0.99] for each year of admission after 1992 (P=.029). The multivariate model showed an association of mortality with patient age (OR: 1.08 for year over 65), the score on the scale APACHE II (OR: 1.1 for each point obtained), and need for mechanical ventilation (OR: 5.36).
  
  
  CONCLUSIONS
  This study shows a decrease in mortality over the years, with an association that remained after adjustment for different confounding parameters.
authors.affiliation: Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, España.
authors.forename: Y
authors.initials: Y
authors.lastname: Peñasco
authors.affiliation: Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, España. Electronic address: jandro120475@hotmail.com.
authors.forename: A
authors.initials: A
authors.lastname: Gonzalez-Castro
authors.affiliation: Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, España.
authors.forename: J C
authors.initials: JC
authors.lastname: Rodriguez-Borregan
authors.affiliation: Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, España.
authors.forename: C
authors.initials: C
authors.lastname: Muñoz
authors.affiliation: Facultad de Medicina, Universidad de Cantabria, Santander, España.
authors.forename: J
authors.initials: J
authors.lastname: Llorca
mesh_terms: D018806:APACHE; D000368:Aged; D005260:Female; D017052:Hospital Mortality; D006801:Humans; D007362:Intensive Care Units; D016015:Logistic Models; D008297:Male; D012189:Retrospective Studies; D013898:Thoracic Injuries / Q000401:mortality* / Q000628:therapy
keywords: Ancianos; Chest trauma; Elderly; Epidemiology; Epidemiología; Mortalidad; Mortality; Traumatismo torácico