Epidemiology and Clinical Features of Heart Failure with Preserved Ejection Fraction.

A study from Olmsted County in Minnesota showed a gradual increase in the proportion of HFpEF hospitalisation out of total HF hospitalisations from the late 1980s to early 2000s.[ 23 ] Participants in the Framingham Heart Study over three decades showed an increasing trend in the proportion of HF constituting HFpEF (LVEF ≥50%), from 41% in 1985–1994 to 56% in 2005–2014.[ 36 ] The trend in incidence of new-onset HFpEF is unclear, with some reporting no change or even a decline over the past decade, and others reporting an increase in the newly diagnosed cases of HF primarily driven by an increase in population size and age.

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