Figure 3

Receiver operating characteristics curve for RP symptoms. Receiver Operating Characteristic (ROC) curve (solid) derived from pre-treatment SUV₉₅, V₃₀, and age to predict symptomatic (grade ≥ 2) radiation pneumonitis. The area under the ROC curve derived from the multiple logistic regression inference was found to be 0.78 (95% CI: 0.69 – 0.87) with Youden’s optimal sensitivity = 92% and specificity = 51%.