Using stool culture as the gold standard, the performance of the POC test was compared to generate summary statistics for diagnostic tests using the diagti module [ 12] in STATA version 10 (Stata Corp., College Station, TX, USA).
As it was recently shown (Barbau-Piednoir et al. 2013a), these guidelines were successfully used to evaluate with high standard the performance of the SYBR® green qPCR methods for the detection of bacterial pathogens.
On the other hand, in YEAST gold standard the performance of causal orientation methods significantly increases when a small amount of noise is added, and then gradually decreases for higher proportions of noise.
When 'RA diagnosis per rheumatologists' was used as the gold standard, the performance of all three algorithms requiring at least one DMARD prescription was acceptable, with the PPVs of 86.2%to88.9%9%.
We suggest that because of the inherent limitations in using plasma creatinine as a gold standard, the performance of structural biomarkers is best assessed against a meaningful clinical outcome, such as mortality or dialysis.
On the other hand, in YEAST gold standard the performance of causal orientation methods slightly increases by reducing the sample size and then gradually decreases for smaller sample sizes.
If a specimen with positive results for the same virus by more than 2 of 3 systems was used as the "gold standard," the performance of the QIAcube system was superior to the EZ1 Advanced XL system and the MICROLAB Nimbus IVD system in sensitivity and concordance rate (Table 3).
They said that in a short period, Mr. Levy had embarked on an ambitious agenda -- setting tougher standards for the performance of superintendents, vowing to move more quickly to remove incompetent teachers and taking aim at the unwieldy central bureaucracy.
The objective is control of quality and standards in the performance of public health officers nationwide [ 38].
According to industrial standard tests, the performance of lighting products produced in the pilot line appeared to be lower than required for general lighting applications.
