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The Annals of Thoracic Surgery, Vol 24, 404-408, Copyright © 1977 by The Society of Thoracic Surgeons
GL Grunkemeier and A Starr
The use of time-related methods of statistical analysis is essential for
valid evaluation of the long-term results of a surgical procedure. Accurate
comparison of two procedures or two prosthetic devices is possible only
when the length of follow-up is properly accounted for. The purpose of this
report is to make the technical aspects of the acturial, or life table,
method easily accessible to the surgeon, with emphasis on the motivation
for and the rationale behind it. This topic is illustrated in terms of
heart valve prostheses, a field that is rapidly developing. Both the
authors and readers of articles must be aware that controversies
surrounding the relative merits of various prosthetic designs or operative
procedures can be settled only if proper time-related methods of analysis
are utilized.
ARTICLES
Actuarial analysis of surgical results: rationale and method
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