The influence of age, sex and other variables on the plasma level of N-terminal pro brain natriuretic peptide in a large sample of the general population

672 randomly selected subjects (382 women, 290 men) from four Copenhagen general practices in four age groups: 50-59 years (n=174), 60-69 years (n=204), 70-79 years (n=174), and >80 years (n=120).

Associations between the plasma concentration of NT-proBNP and a range of clinical variablessurrogate