Generalized Youden Index (GYI) was used in conjunction with a method described by [31] to determine optimal cut-points. [31] GYI is the maximum difference between true and false positive rates weighted by a function of the expected infection prevalence and the cost ratio for false negative vs...
The cut-point leading to the index is the optimal cut-point when equal weight is given to sensitivity and specificity. Using the delta method, we present approaches for estimating confidence intervals for the Youden index and corresponding optimal cut-point for normally distributed biomarkers and ...
Objectives: To establish an enhanced Youden's index with net benefit, as a scientific method for optimal-threshold determination in shared decision making... S Lin,Y Ma,H Zou - 《Journal of Evaluation in Clinical Practice》 被引量: 0发表: 2019年 REGRET GRAPHS, DIAGNOSTIC UNCERTAINTY AND YOUD...
'First ten values of Youden index'; ; Likes _SAS SAS Super FREQ : 95% confidence intervals of Youden index 03-13-2019 08:54 AM (11900 views) | In reply to AVA_16 review of the literature and a computational method is available in the section "Computing algorithm" ...
An alternative method used to establish the “optimal” cut-point is that of finding the point on the ROC curve closest to (0, 1). Perkins and Schisterman (2006) obtained the inconsistency of optimal cut-points using the Youden index and the point closest to (0, 1) on the ROC curve....
(cut-point). Section 4, we elaborateon the graphical interpretation of KL divergence and its proposed measures. A power analysis using simulation conducted to compare our proposed method with Youden Index as one of ROC indi...
关键词：水泥；抗压强度；柱状图；尧敦图 Abstract：Compressive strength is a key technical index to evaluate the quality and grade of cement products.In order to evaluate the testing ability of compressive strength of cement for laboratories,robust statistical method was used to analyse the3d compressive...
We propose a method foundational on the utilization of the Youden Index as a potential decision threshold, which has been shown in the literature to be effective in conjunction with neutral zones. Unlike the traditional 5-step method, our 5-step method (the Bi Error method) allows for neutral...
nmol/L and the B sample has a true concentration of 16.2 nmol/L. Let's also assume that they are all performed by the same analytical method. If you have looked at EQA reports, you will know that a scatter plot of results for the A and B samples does not typically look like this....
In the current paper, the empirical likelihood method for the Youden index is derived via defining novel smoothed estimating equations, and Wilks' theorem for the empirical likelihood ratio statistic is established. Extensive simulation studies suggest that the chi-square calibrated empirical likelihood ...