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Table 2 Mediastinal lymph node metastasis in left-sided NSCLC

From: Is lobe specific lymph node dissection adequate for cN0–1 non-small cell lung cancer?

VariablesLUL (n = 97)LLL (n = 84)P value
Upper zone84/97 (86.6%)30/84 (35.7%)< 0.001
4 L14/29 (48.3%)7/22 (31.8%)0.237
571/97 (73.2%)24/84 (28.6%)< 0.001
627/97 (27.8%)10/84 (11.9%)0.008
Subcarinal zone
 725/97 (25.8%)57/84 (67.9%)< 0.001
 Lower zone4/97 (4.1%)32/84 (38.1%)< 0.001
 81/97 (1.0%)12/84 (14.3%)0.001
 94/97 (4.1%)27/84 (32.1%)< 0.001
 Negative LSLNS12/97 (12.4%)12/84 (14.3%)0.705
  1. NSCLC non-small cell lung cancer; LUL left upper lobe; LLL left lower lobe; LSLNS lobe specific lymph node stations
  2. Values are the number of involved patients divided by the number of resected patients (%)