From: Tumor volume is more reliable to predict nodal metastasis in non-small cell lung cancer of 3.0 cm or less in the greatest tumor diameter
TV groups
Cases
OS (%)
P value
Total
204
79.9
0.0375
V1 ≤ 0.9 cm3
30
86.7
V2 0.9–3.9 cm3
100
81.0
V3 3.9–14.2 cm3
74
75.7