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Table 2 The GTD and TV in patients with or without metastatic lymph node metastases

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

Lymph node metastases Total (95% CI) Negative (95% CI) Positive (95% CI) P value
TV mean (cm3) 3.92 (3.60–4.23) 3.57 (3.21–3.94) 4.78 (4.15–5.40) 0.001
GTD mean (cm) 2.22 (2.16–2.29) 2.17 (2.09–2.49) 2.35 (2.24–2.47) 0.054