Figure 2.
The area under the receiver operating characteristic curve (AUC) for metabolic tumor volume (MTV) was 0.60, which increased to 0.70 when clinical data (smoking status) was combined. Sensitivity and specificity were 0.50 and 0.81, respectively. The cut-off value of MTV was 11.55, and was 0.56 when combined with the clinical data (smoking status).