Exact(7)
Thus, we set the prevalence of delirium at 50% which is conservative regarding the number of patients needed to be analyzed, in order to maximize the power.
Recent studies on a Scandinavian population of pediatric subjects set the prevalence of TTH at 10 12% [16, 17], with a tendency to increase in adolescence [12, 17].
In the prospective validation set, the prevalence of weaning success and weaning failure was calculated.
In the prospective-validation set, the prevalence of weaning success was 0.85 (183/216), and weaning failure was 0.15 (33/216).
In our data set, the prevalence of influenza among hatchling year birds is significantly greater than in second-year or adult birds (x12 = 64.87, one-sided p = 4 × 10-16).
While the overall presence of acutely important alternative findings was 2.9% in the derivation set and 3.8% in the validation set, the prevalence of clinically important alternative diagnoses in the high probability group was less than half of this: 0.3% and 1.6% in the derivation and validation cohorts, respectively.
Similar(53)
In our setting the prevalence of B. hominis was significantly higher in immigrants than in Italians (about 3 times) and in adults than in children (1.76 times) all having intestinal symptoms.
Since no recent data on incidence or prevalence of AS were available for The Netherlands, we set the AS prevalence at 0.4 %, as reported for Western countries in studies on the epidemiology of AS [ 24– 26].
We set the disease prevalence to k = 1/250.
We set the disease prevalence to 0.01, 0.14 or 0.24, reflecting cancer rates seen in published cancer studies and surveys [ 2, 3, 16- 18].
Using the additive model, we set the disease prevalence to the average family mortality rates observed among the families challenged for each pathogen (0.49 for CWD and 0.53 for IHNV) and genotype relative risk was set to 1.3.
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