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Table 3 Survival rate according to clinicopathological factors

From: Metachronous pulmonary metastasis after radical esophagectomy for esophageal cancer: prognosis and outcome

Factors related survival   n survival rate
    1 year 2 year 4 year p value
All cases   25 60.0 36.0 27.5  
Gender Male 21 57.1 28.6 22.9 0.424
  Female 4 75.0 75.0 50.0  
Thoracic procedure Thoracotomy 21 75.0 50.0 50.0 0.402
  Thoracoscopy 4 57.1 33.3 22.2  
Postoperative morbidity Present 11 72.7 45.5 36.3 0.162
  Absent 14 50.0 28.6 21.4  
pT pT1 8 75.0 50.0 33.3 0.562
  pT3, pT4 17 52.9 29.4 23.5  
pN + 18 61.1 27.8 22.2 0.707
  - 7 57.1 57.1 38.1  
pStage I, II 9 66.7 66.7 53.3 0.042
  III, IV 16 56.3 18.8 12.5  
Classification of the tumor Squamous cell csrcinoma 20 50.0 25.0 18.8 0.052
  Other type 5 80.0 80.0 60.0  
Lymphatic invasion + 10 44.4 11.1 11.1 0.218
  - 15 68.8 50.0 36.4  
Venous invasion + 4 50.0 0 0 0.290
  - 21 61.9 42.9 32.1  
Number of pulmonary metastasis Solitary 6 100.0 100.0 80.0 0.001
  Multiple 19 47.4 15.8 10.5  
Extrapulmonary metastasis Present 11 45.8 18.2 0 0.016
  Absent 14 71.4 50.0 41.7  
Pulmonary resection Resected 5 100.0 100.0 75.0 0.002
  Nonresected 20 50.0 20.0 15.0  
Time of recurrence Within 2 year 16 37.5 0.0 0.0 0.001
  More than 2 years 9 100.0 100.0 76.2