Inter- and Intra-Assay Coefficients of Variability In order to express the precision, or repeatability, of immunoassay test results, researchers in the social and behavioral sciences typically report two measures of the Coefficient of Variability (CV) in their publications: the Inter-Assay CV and th...
For each analyte, the rICCs revealed that less than 5% of variation in analyte levels was attributable to laboratory-based measurement error. rICC estimates were similar across all analytes despite differences in analyte levels, average intra-assay coefficients of variation, and in the distributional ...
The intensity of color was read using a programmable spectrophotometer (SpectraMax M2, Molecular Devices, Sunnyvale, CA). The concentra- tions of fragment Bb in AF samples were determined by interpolation from individual standard curves. The calculated inter- and intra-assay coefficients of variation ...
The intraassay and interassay coefficients of variation were 6 and 9%, respectively. Fetal swallowing was determined by analysis of the esophageal 5o 3004 Basol 0 I 60 120 180 flowmeter signalsas described previously (7). Briefly, flow signals TIME (min) were digitized at 50 samples/s ...
The inter-assay and intra-assay coefficients of variation (CV) for SAA analysis were <10% and <7%. Milk and serum Hp concentrations were determined using the method based on the ability of Hp to bind to haemoglobin [32] and using tetramethylbenzidine as the substrate [33]. The assay is ...
The inter- and intra-assay coefficients of variation were less than 10%. To standardize against the possible differences of AF osmolality, AF levels of sFas were normalized by AF creatinine concentrations. Amniotic fluid creatinine levels were measured using the alkaline picrate method (Sigma ...
The findings of the current study are: (1) intra- and inter-rater analysis of short-term HRV assessed in patients hospitalized with COVID-19 is a reliable measure; and (2) the coefficients of variation in both analyzes presented values lower than 10%. The main contribution of this investiga...
The sensitivity was 0.3 ng/mL; intra- and interassay coefficients of variation were 8.3% and 12.5%, respectively. The cortisol concentrations were determined by the RIA method according to Kokot and Stupnicki [44], using rabbit anticortisol antisera (R/75) and HPLC grade cortisol standard (...
Separation of the biological and analytical coefficients of variation (CVs) was determined by analysis of two remeasured AMH levels, together with the original AMH levels, to provide triplicate results. Statistical analyses Mixed-effects periodic regression models based on Fourier series were performed ...
The minimum detectable amounts of estradiol and FSH were 1.4 pg/ml and 0.46 mIU/ml, respectively. The intra- and inter-assay coefficients of variation were all <10% and <15%. Data analysis We conducted at least three replicate trials for each treatment. Data were analyzed by ANOVA,...