Relevant Population CharacteristicsHeart disease is the leading cause of death for mean and women in the U.S.^7^ Risk of heart attacks increase with age.^7^ Average age of the first heart attack for males is 65.6 years and for females is 72.0 years.^8^[[br]]
7. Murphy SL, Xu J, Kochanek KD, Curtin SC. Final data for 2015: supplemental tables. National Vital Statistics Report. 2017;66(6). [https://www.cdc.gov/nchs/data/nvsr/nvsr66/nvsr66_06_tables.pdf]. Accessed July 23, 2018.
8. Benjamin EJ, Virani SS, Callaway CW, et al. American Heart Association/American Stroke Association Council on Epidemiology and Prevention Statistics Committee and Stroke Statistics Subcommittee 2017:At-A-Glance. January 31, 2018. [https://healthmetrics.heart.org/wp-content/uploads/2018/02/At-A-Glance-Heart-Disease-and-Stroke-Statistics-2018.pdf]. Accessed July 23, 2018.}}