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The study was limited because of the relatively few patients in their 80s. "I feel comfortable applying the findings to septuagenarians, but we continue to have limited data on ICD use among octogenarians," Chan said.

Co-authors are Brahmajee K. Nallamothu, M.D., M.P.H.; John A. Spertus, M.D., M.P.H.; Frederick A. Masoudi, M.D., M.S.P.H; Cheryl Bartone, B.S., M.P.H.; Dean J. Kereiakes, M.D.; and Theodore Chow, M.D. Individual author disclosures can be found on the manuscript.

Statements and conclusions of study authors that are published in American Heart Association scientific journals are solely those of the study authors and do not necessarily reflect the association's policy or position. The association makes no representation or guarantee as to their accuracy or reliability. The association receives funding primarily from individuals; foundations and corporations (including pharmaceutical, device manufacturers and other companies) also make donations and fund specific association programs and events. The association has strict policies to prevent these relationships from influencing the science content. Revenues from pharmaceutical and device corporations are available at www.americanheart.org/corporatefunding.

NR09- 1000 (CV Quality and Outcomes/Chan)