Fig. 5

Kaplan-Meier plots for (A) TNM and (B) combined risk stratification (TNM + MTV) in patients with locally advanced non-small cell lung cancer receiving chemoradiotherapy. A Median overall survival for stages IIIa, IIIb, and IIIc were 40, 29, and 13 months, respectively (log rank p = 0.051 and p = 0.011). B Median overall survival for groups 1 (stage IIIa and stage IIIb with MTV < 48 ml), 2 (stage IIIb with MTV > 48 ml and stage IIIc with MTV < 105 ml), and 3 (stage IIIc with MTV > 105 ml) were 40, 20, and 9 months, respectively (log rank p = 0.001 and p = 0.014). Vertical lines indicate censoring