Who is affected by mitral valve regurgitation?

Chronic mitral valve regurgitation (MR) is a common disorder, although the exact number of people affected by the condition is difficult to estimate. This is due to the presence of harmless murmurs in many adults and the small amount of regurgitation detected in 80% of adults.1

However, a variety of studies note that:

  • 10% of healthy men and women between the ages of 23 and 35 had some degree of MR. Of these people, 93% had mild MR.2
  • 10% of those over age 65 had MR, and about 26% of these had moderate to severe regurgitation.2
  • Of people with MR, more are male than female.3
  • The incidence of MR increases with age.3


Author: Kathe Gallagher, MSW
Cynthia Tank
Last Updated: April 3, 2006
Medical Review: Caroline S. Rhoads, MD - Internal Medicine
Kathleen Romito, MD - Family Medicine
Stephen Fort, MD, MRCP, FRCPC - Interventional Cardiology

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