[Prognostic significance of diabetes in a heart failure population: one year mortality and heart failure related hospital admission].
OBJECTIVE
The relationship between diabetes mellitus and heart failure is not fully established. The aim of the study was to assess the prevalence of diabetes and its prognostic significance, considering mortality and the need of hospital admission due to heart failure during the first year of follow-up, in an outpatient population with heart failure attended in a specialized Unit.


METHODS
We studied 362 patients -73% men; mean age (standard deviation) 65.3 (10.9) years-. Mean ejection fraction was 32.2% (12.7%). Patients were in New York Heart Association functional class I (5%), II (47%), III (43%) and IV (5%).


RESULTS
One-hundred forty-three out of 362 patients were diabetic (39.5%). Thirty patients (8%) died and 70 (19%) needed to be hospitalized due to heart failure during the first year of follow-up. One year mortality was 5% in non-diabetic patients and 13.3% in diabetic patients (p = 0.005). 13.2% of non-diabetic patients suffered at least one episode of heart failure needing hospital admission, whereas 28.7% of diabetic patients needed to be hospitalized at least once (p < 0.001). In the multivariate regression analysis, diabetes remained statistically associated both with mortality and with the need of heart failure related hospital admission.


CONCLUSIONS
Diabetes significantly correlated with a higher one year mortality as well as with a greater need of hospital admission due to heart failure. Prevalence of diabetes in a general population with heart failure was high.
García
Cosme
C
Unitat d'Insuficiència Cardíaca. Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain.
Lupón
Josep
J
Urrutia
Agustín
A
González
Beatriz
B
Herreros
Joan
J
Altimir
Salvador
S
Coll
Ramon
R
Prats
Montserrat
M
Rey-Joly
Celestino
C
Valle
Vicente
V
D000368:Aged; D048909:Diabetes Complications / Q000401:mortality; D003920:Diabetes Mellitus / Q000453:epidemiology*; D005260:Female; D006333:Heart Failure / Q000150:complications / Q000401:mortality*; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis