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Table 3 The OS of V1, V2, and V3 groups for N0 cases

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