Analysis of Pre-CCU Time Interval in Acute Myocardial Infarction.

by M. A. Rockwell, Andrew P. Klaus, J. K. Cooper

Purchase Print Copy

 FormatList Price Price
Add to Cart Paperback14 pages $20.00 $16.00 20% Web Discount

Analysis of the time from onset of symptoms to admission to a Coronary Care Unit (CCU) for 2122 patients with acute myocardial infarction treated in the CCUs of nine hospitals. These data were studied to determine the factors that affect the speed with which patients seek treatment. The median for all patients was 5.8 hours, with a mean of 16.9 hours; 84 percent arrived within 24 hours. Stepwise regression analysis on age, sex, previous medical history, clinical status at the time of admission, and symptom severity was performed for the 1202 patients for whom all the data were recorded. When factors were considered individually, shorter median times occurred with males, young persons, congestive heart failure patients, cases with shock or fainting, and those who considered their symptoms severe. In the stepwise regression, significant variables were shorter intervals for patients with much sweating and longer intervals for angina cases and for one particular hospital. In the aggregate, all the variables together explained only 9 percent of the variance. 14 pp. Ref.

This report is part of the RAND Corporation Paper series. The paper was a product of the RAND Corporation from 1948 to 2003 that captured speeches, memorials, and derivative research, usually prepared on authors' own time and meant to be the scholarly or scientific contribution of individual authors to their professional fields. Papers were less formal than reports and did not require rigorous peer review.

Our mission to help improve policy and decisionmaking through research and analysis is enabled through our core values of quality and objectivity and our unwavering commitment to the highest level of integrity and ethical behavior. To help ensure our research and analysis are rigorous, objective, and nonpartisan, we subject our research publications to a robust and exacting quality-assurance process; avoid both the appearance and reality of financial and other conflicts of interest through staff training, project screening, and a policy of mandatory disclosure; and pursue transparency in our research engagements through our commitment to the open publication of our research findings and recommendations, disclosure of the source of funding of published research, and policies to ensure intellectual independence. For more information, visit www.rand.org/about/principles.

The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.