Interpreting Hospital Mortality Data

How Can We Proceed?

Published in: JAMA, The Journal of the American Medical Association, v. 260, no. 24, Dec. 23, 1988, p. 3625-3628

Posted on RAND.org on January 01, 1988

by Katherine L. Kahn, Robert H. Brook, David Draper, Emmett B. Keeler, Lisa V. Rubenstein, William H. Rogers, Jacqueline Kosecoff

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Data about whether patients live or die following short-term-care hospitalization can serve at least two purposes: (1) to determine if hospital performance has improved or deteriorated over time, and (2) to determine if performance differs across hospitals at one given time. Hospital mortality figures have been used in this manner primarily because such data are readily available, easy to understand, and potentially important to the public. However, if mortality data are to be used for these purposes, they must reflect actual differences in the quality of care, not other factors, such as patient sickness at admission.

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