Exact(5)
When the risk is decreasing with time, the expected recurrence time will lead to the divergence of return period and make this definition inapplicable for engineering purposes.
The concordance rate of autoimmune diseases in identical twins can be used to gauge the expected recurrence rates if all pre-existing autoreactive lymphocytes were ablated before auto-HCT.
Through the estimation of long-term risk, we were able to examine the behavior of return periods under two different definitions: the reciprocal of the exceedance probability of occurrence and the expected recurrence time.
This approach was followed by another study that addressed whether HCQ use reduces the expected recurrence rate of CHB.
First of all, the surveillance after initial treatment could be fit to the expected recurrence pattern based on each intrinsic subtype.
Similar(54)
With the consideration of non-stationarity, the return period is relatively small under the definition of expected recurrence time comparing to the estimation using the reciprocal of the exceedance probability of occurrence.
However, the calculation of expected recurrence time is based on the assumption of perfect knowledge of long-term risk, which involves high uncertainty.
The initial complete gross resection was obtained in both groups, and, as expected, recurrence was greater in the dedifferentiated group.
However if failed malaria treatment had been an important explanation of recurrent anaemia, we might have expected recurrence to occur more frequently among cases who had malaria parasitaemia at the time of admission; in fact these children proved to have a lower incidence of recurrent anaemia than those without malaria.
The Kaplan Meier estimate of the TBR-levels using the 65th percentile as cut-point (corresponding to an expected recurrence rate of 25% adding a 10% margin) is shown in Fig. 4g, and results in a HR of 2.39 (95% CI: 1.22 4.69) for the high-risk population.
The Army Corps of Engineers considers the 1862 flood as roughly equivalent to a "standard project flood --defined as a calamity with an expected recurrence oflood --defined0 years on the river, or one chance in 200.
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