Table 3: Diagnostic performances of non invasive means for the prediction oesophageal varices and large oesophageal varices in the training sample.

AUROC SECut-offTP (n)TN (n)SS (%)SP (%)PPV (%)NVP (%)DA (%)LR+

Oesophageal varices
 Platelet count <1105006818 80 6989.55177.52.6
 Spleen diameter >140441851.8 7286.330.555.91.9
 PC/SD ratio ≤868702082.4 76.992.157.181.13.6
 Regression function 0.382796.528 827080.91.3
0.481795.32881.863.6 801.3
0.5801094.14084.266.781.81.6
0.6791792.96890.873.987.32.9
0.7691881.27290.852.979.12.9
0.8621872.97289.943.972.72.6
Large oesophageal varices
 Platelet count <106500612078.260.682.454.1 732
 Spleen diameter >137492562.846.3 864666.71.2
 PC/SD ratio ≤897662184.663.684.661.878.42.3
0.375996.228.176.57576.41.3
Regression function 0.4731193.634.477.768.876.41.4
0.5681587.246.9 806075.51.6
0.6642082.162.584.258.876.42.2
0.7592575.678.189.456.876.43.5
0.8512765.484.491.150714.2

AUROC: area under receiver operating characteristic curve, SE: standard error, PC/SD ratio: platelet count-spleen diameter ratio, TP: true positive TN: true negative SS: sensitivity SP: specificity PPV: positive predictive value NVP: negative predictive value DA: diagnostic accuracy, LR+: positive likelihood ratio, Prevalence of OV: 76.6%, logistic regression analysis was computed on 110 patients due to one missing value in those with no OV.