نتایج جستجو برای: observed survivals
تعداد نتایج: 891146 فیلتر نتایج به سال:
We consider the problem of using simulation to efficiently estimate the win probabilities for participants in a general random knockout tournament. Both of our proposed estimators, one based on the notion of “observed survivals” and the other based on conditional expectation and post-stratification, are highly effective in terms of variance reduction when compared to the raw simulation estimato...
Twenty dogs with naturally occurring metastatic tumors were treated with anticoagulants (Warfarin) or platelet enzyme inhibitor drugs (dipyridamole, dipyridamole plus aspirin, RA233, sulfinpyrazone, or a combination of RA233 and sulfinpyrazone) to determine if tumor-related reductions in platelet survival and concentration could be reversed. Anticoagulation was ineffective, while platelet enzym...
SUMMARY Interval censored data arise naturally in large-scale panel studies where subjects can only be followed periodically and the event of interest can only be observed between some time intervals. To estimate the survival function the nonparametric maximum likelihood estimator (NPMLE) is commonly used, which is a step function having some large jumps. But in many applications the underlying...
Tacrolimus is a superior immunosuppressive agent in patients undergoing renal transplantation. In adults, the 1- and 3-year actuarial patient survivals were 95% and 92%, and the 1- and 3-year actuarial graft survivals were 89% and 80%. For first cadaver kidneys, the 1- and 3-year actuarial graft survivals were 91% and 82%, with a projected half-life of 11.9 years. Sixty-nine percent of successf...
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