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ROC curve analysis assessing the potentially of SUVmax to predict tumor PD-L1 expression in primary lung adenocarcinoma. AUC was 0.855 (95% CI, 0.764–0.947, P<0.0001); The optimal cut-off value of SUVmax for predicting tumor PD-L1 expression was 9.5 with 76.7% sensitivity and 88.4% specificity.
Abbreviations: ROC, receiver operating characteristic; AUC, area under the curve; SUVmax, maximum standardized uptake value; PD-L1, programmed death ligand-1.
