This is Meryl Gordon's starting point for "Mrs. Astor Regrets," her book-length sojourn inside the can of worms that Philip Marshall opened.
Randomised trials specifically designed to investigate this aspect are not available, but all process indicators (positive predictive value, length of sojourn time, sensitivity of the test) indicate that screening efficacy does not change with increasing age.
Breast cancer is a heterogeneous disease, with grades of metastatic potential and length of sojourn time [ 51].
For example, in Dakar, Senegal, Duboz and colleagues, [ 13] reported that length of sojourn in urban environment (Dakar) was a significant predictor for hypertension.
Using these results, we can efficiently compute the mean and variance of the queue lengths, waiting time, sojourn time, and departure delays.
By employing an embedded Markov chain method, the average queue length and the average sojourn time of the system model are derived.
When considering AoN graph, substitute each node with a stochastic arc (activity) whose length is equal to the sojourn time in the corresponding queuing system.
The relief goods stored in multi-echelon locations in a metropolitan area are delivered with an optimization method of the queuing equations by using sojourn time, waiting time, queue length, and overflow probability as quality of service.
An important assumption often used to simplify multi-state models is the Markov assumption, which assumes that the transition rate is independent of both the length of stay in the current state (sojourn time) and which states were visited prior to the current state.
For our analysis, sojourn time was defined as the length of time it would take for an undetected cancer to progress and to become detected due to clinical symptoms such as dysphagia (difficulties swallowing) or weight loss.
The length of this period is the tumour's sojourn time.
