Silver Book Fact
The prevalence of valve disease increases with age, from 0.7% in participants 18-44 to 13.3% in participants 75 years of age or older.
Nkomo V, Gardin J, Skelton T, Gottdiener J, et al. Burden of Valvular Heart Diseases: A population-based study. Lancet. September 2006; 368(9540): 1005-11. http://www.ncbi.nlm.nih.gov/pubmed/16980116