title: [Risk adjustment measures for mortality after hip fracture].
abstract: OBJECTIVE
  To assess factors associated to mortality in patients with hip fracture and to describe different risk adjustment measures.
  
  
  METHODS
  Non-concurrent cohort study comprising 390 patients aged 50 years and more. Patients were identified from the Brazilian Unified Health System Hospital Information System, admitted for hip fracture surgery in a teaching hospital in Rio de Janeiro, southeastern Brazil, between 1995 and 2000. Data from medical records were collected and analyzed by logistic regression models to study 90-day mortality odds after admission according to patient and treatment profiles. Severity of illness classification indexes were estimated.
  
  
  RESULTS
  Mortality rate was 7.4% and factors affecting mortality were age (OR=1.06; 95% CI: 1.02;1.11), number of co-morbidities (OR=1.44; 95% CI: 1.12;1.69), Charlson co-morbidity index (OR=6.67; 95% CI: 2.98;22.16) and time to surgery (OR=1.04; 95% CI: 1.02;1.07).
  
  
  CONCLUSIONS
  Number of co-morbidities and Charlson co-morbidity index helped predicting the mortality rate.
authors.affiliation: Fundação Educacional Serra dos Orgãos, Teresópolis, RJ, Brasil. romulocsouza@oi.com.br
authors.forename: Rômulo Cristovão de
authors.initials: RC
authors.lastname: Souza
authors.forename: Rejane Sobrino
authors.initials: RS
authors.lastname: Pinheiro
authors.forename: Cláudia Medina
authors.initials: CM
authors.lastname: Coeli
authors.forename: Kenneth Rochel de
authors.initials: KR
authors.lastname: Camargo
authors.forename: Tânia Z Guillén de
authors.initials: TZ
authors.lastname: Torres
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D015897:Comorbidity; D005260:Female; D006620:Hip Fractures / Q000401:mortality*; D017052:Hospital Mortality; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D020379:Risk Adjustment; D012307:Risk Factors