Optimizations of cut-off limits using Youden index and logistic regression-derived likelihood ratio functions with correct adaption for pre-test probabilities both yield reasonably stable results, being nearly independent from pre-test probabilities actually used.
Salt sensitivity, i.e. the individual blood pressure reaction to a given change in salt intake is a continuous trait [4] and cut-off limits used to dichotomize the trait are arbitrary and have differed between studies.
Fagerberg et al [ 22] have documented that the same cut-off limits used in adults are also applicable in children older than 4 years.
Depending on the cut-off limits used, the literature indicates that 50-60% of cases detected with these instruments are individuals who actually qualify for a diagnosis of mental disorders based on clinical interviews [ 12].
There was no clear relationship between urate concentration and cardiovascular outcome in Figure 2 except with the high-dose group, and this is probably due to small sample size and different cut-off limits used in the stratification of urate concentration.
Our aim was to evaluate the validity of this cut-off limit using two currently used immunometric GH assays and to compare GH responses in the ITT and the GH releasing hormone + arginine (GHRH + ARG) test in healthy adults at our outpatient endocrine unit.
We developed tools and methods to keep the power quality parameters in Off-Grid systems within the limits using an intelligent approach based on an artificial intelligence technique.
In your Sept. 21 editorial "Questions About Fracturing," you write that New York State should "put the city's watershed permanently off limits" to gas drilling using hydraulic fracturing.
Even before the police came to the area, two parking lots for a bank's use became off limits to apartment residents who parked there when the bank was closed.
Comparing oral fluid with blood samples gives more accurate estimates of present impairment compared to urine when using equivalent cut-off limits, and the use of oral fluid is, therefore, recommended in future studies.
