title: [Anemia and heart failure in a community-based cohort: comparison with a specialized outpatient clinic].
abstract: BACKGROUND
  Anemia is common in patients with heart failure (HF). Its prevalence in patients with HF from a community-based cohort is unknown in our country.
  
  
  OBJECTIVE
  evaluate the prevalence and characteristics of patients with anemia in a non-selected population with HF from a community-based cohort, comparing it with that of a HF population treated at a specialized outpatient clinic.
  
  
  METHODS
  This was a transversal, prospective, observational study, carried out from January 2006 to March 2007. The patients with HF met the Boston criteria, with a score > 8. Anemia was defined through the criteria of the World Health Organization as hemoglobin levels < 13 g/dL for men and <12 g/dl for women. Patients treated at a primary care program in the community were randomly selected, as well as patients treated at a Heart Failure Outpatient Clinic in a university hospital.
  
  
  RESULTS
  A total of 206 patients were assessed, with a mean age of 61.3+/-13.1 years, of which 53.4% were females. The prevalence of anemia in the community-based cohort (n=114) was 21% and at the outpatient clinic (n=92), of 25% (p=0.50). The patients from the community-based cohort presented a lower rate of kidney dysfunction (GFR<60 ml/min/1,73-5), predominance of HF with normal ejection fraction and female sex. Kidney function parameters (urea or creatinine) independently correlated with anemia in both populations.
  
  
  CONCLUSIONS
  The prevalence of anemia was similar in the studied populations. Kidney function was the only factor that independently correlated with anemia in both populations.
authors.affiliation: Universidade Federal Fluminense, Niterói, RJ, Brasil.
authors.forename: Eduarda Barcellos Dos
authors.initials: EB
authors.lastname: Santos
authors.forename: Bolívar Saenz
authors.initials: BS
authors.lastname: Tello
authors.forename: Humberto
authors.initials: H
authors.lastname: Villacorta
authors.forename: Ana Luisa Ferreira
authors.initials: AL
authors.lastname: Sales
authors.forename: Christiane
authors.initials: C
authors.lastname: Wiefels
authors.forename: Pedro Soares
authors.initials: PS
authors.lastname: Teixeira
authors.forename: Luis Costa
authors.initials: LC
authors.lastname: Lima Filho
authors.forename: Evandro Tinoco
authors.initials: ET
authors.lastname: Mesquita
mesh_terms: D000554:Ambulatory Care Facilities; D000740:Anemia / Q000097:blood / Q000175:diagnosis / Q000453:epidemiology*; D001938:Brazil / Q000453:epidemiology; D003404:Creatinine / Q000097:blood; D004812:Epidemiologic Methods; D005260:Female; D006333:Heart Failure / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011320:Primary Health Care; D014508:Urea / Q000097:blood
chemical_list: D014508:Urea; D003404:Creatinine