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Table 1 Clinicopathological characteristics and survival analysis of 51 patients with pulmonary sarcomatoid carcinoma (PSC)

From: Pulmonary sarcomatoid carcinoma: a clinicopathologic study and prognostic analysis of 51 cases

Characters Case numbers The median survival time(month) 5-year survival rate (%) x2 P
Gender      
  Male 43 6 21.7% 1.424 0.233
  Female 8 4 21.4%
Age      
  ≤60y 28 8.5 22.4% 4.055 0.044
  >60y 23 4 15.1%
Tumor size      
  ≤7 cm 25 29 30.8% 21.789 0.000
  >7 cm 26 4 7.7%
Smoking history      
  No 18 5 25% 0.622 0.430
  Yes 33 6 21.2%
T stage      
  T1-2 20 32 28.4% 12.423 0.000
  T3-4 31 4 14.2%
Lymph node metastasis      
  No 27 7 24.2% 2.813 0.093
  Yes 24 4 14.3%
M metastasis      
  No 38 9 26.1% 36.313 0.000
  Yes 13 3 0
Surgery or not      
  Yes 37 7 24.1% 7.800 0.005
  No 14 3.5 0
Postoperative chemotherapy      
  Yes 19 17 38.4% 4.755 0.029
  No 18 5.5 8.5%