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Table 1 The clinical information of patients with lung adenocarcinoma (LUAD), training (Fudan) and validation (TCGA) cohorts

From: A seven-gene prognostic signature predicts overall survival of patients with lung adenocarcinoma (LUAD)

Fudan (training group)
 Age—year (no.)
  < 60 year 40
  ≥ 60 year 62
 Pathological_stage no
  IA 59
  IB 27
  IIIA 16
 Smoking status—no
  Former/current 31
  Never 71
 Tumor_size—no
  < 3 cm 70
  ≥ 3 cm 32
 Sex—no
  Male 49
  Female 53
 T—no
  T1a 40
  T1b 27
  T2a 33
  T2b 1
  T4 1
TCGA (validation group)
 Age—year (no.)
  < 60 year 87
  ≥ 60 year 240
 Stage—no
  I 168
  II 78
  III 60
  IV 21
 N—no
  N0/N1 208/67
  N2/N3 51/1
 Sex—no
  Male 160
  Female 167
 T—no
  T1 100
  T2 182
  T3 28
  T4 17
 M—no
  M0 306
  M1 21