Computational and Mathematical Methods in Medicine / 2017 / Article / Tab 6

Research Article

Defining an Optimal Cut-Point Value in ROC Analysis: An Alternative Approach

Table 6

Bootstrap standard deviation, coverage probability, and mean length of the 95% confidence interval estimation of all methods. The normal homoscedastic unbalanced scenario.

Sample
sizes
Minimum valueYouden indexConcordance probabilityPoint closest-to-(0-1) cornerIndex of Union
SDBCoverageMean
length
CoverageMean
length
CoverageMean
length
CoverageMean
length
CoverageMean
length

0.250.39501000.69680.9682.63650.42050.9691.60590.22960.9680.88810.18510.9710.71910.08740.9670.3504
0.46501500.70270.9622.60120.41080.9691.60120.22470.9670.87510.18040.9670.68920.08560.9640.3336
0.51502000.72770.9602.68710.41570.9721.61510.21710.9670.85140.17470.9640.66330.08210.9590.3174

0.520.75501000.44190.9711.70110.29830.9691.14610.21510.9690.82520.15760.9670.60680.12340.9670.4666
0.87501500.43400.9711.68160.29430.9661.14590.20610.9710.80030.15480.9750.62260.12310.9610.4671
0.96502000.45040.9681.73460.27570.9661.06010.19640.9710.78820.14700.9670.56850.12070.9680.4561

0.841.09501000.30810.9701.18660.24160.9710.93430.20310.9710.80280.14720.9700.57540.15940.9670.6031
1.23501500.30940.9711.20330.23750.9700.91230.20440.9730.80640.14890.9710.58050.15850.9690.6001
1.33502000.31510.9691.22650.22920.9720.89170.19140.9720.76390.13790.9680.52610.15470.9640.5648

1.281.50501000.24080.9680.91990.20920.9720.82940.19550.9740.78460.15630.9710.60930.17800.9720.6941
1.63501500.22980.9730.90890.21310.9720.84230.20040.9720.79830.15060.9730.59620.18180.9700.7011
1.72502000.22540.9680.87160.21010.9660.80960.19980.9640.76710.15260.9700.59290.18250.9650.6890

~,  ~, and was taken as 0.51, 1.05, 1.68, and 2.56, respectively.

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.