Nevertheless, plasma proteins in low ng/ml to low μg/ml concentrations were measured with a median technical coefficient of variation (CV) of 11.9% using InteQuan.
The assay's limit of blank is 3 ng/L, the limit of detection is 5 ng/L, and the limit of quantification (the lowest analyte concentration that can be reproducibly measured with coefficient of variation of 10% or less) is 13 ng/L.
The functional sensitivity, the lowest concentration that can be reliably measured with a between-run coefficient variation of 20%, of the NT-proBNP assay (<5.9 pmol/L) employed in this study may have significantly decreased the performance of NT-proBNP in detecting LVH.
A colorimetric method was used for the measurement of total serum calcium (coefficient of variation <2.5%), whereas albumin was measured with a bromcresolgreen (BCG) method (coefficient of variation <1.8%).
The proportion of explained variability in the model is measured with the coefficient of determination, R 2. As noted by Miljkovic and Miljkovic (2014), it would be ideal to be able to convert the data into natural logarithms to make the coefficient estimates reported in the form of elasticity; however, the numerous zeroes presented in economic losses prevent this transformation.
The variability of decision times around the mean is measured with the coefficient of variation, CV = σCV/〈CV〉, and is plotted in Fig. 6A.
The overall predictive capacity was measured with the coefficient of determination (CD).
Each blood sample was measured in duplicate with a coefficient of variation of <5%.
They were measured in duplicate with a coefficient of variation of 3.9% and 1.9%, respectively.
The MSBS showed a test-retest coefficient measured with an ICC of 0.90 (95 % CI, 0.88 0.92).
In this subsample, the MSBS showed a test-retest coefficient measured with an ICC of 0.90 (95 % CI, 0.88 0.92).
