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-N
P value
P value (total)
GTD-N
≤ 0.9 cm3
0.945
0.010
≤ 1.0 cm
0.355
0.063
0.9–3.9 cm3
0.020
1.0–2.0 cm
0.667
3.9–14.2 cm3
2.0–3.0 cm
0.643