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Table 1

Clinical and pathologic characteristics of patients and their tumors

No. of patients 89 
Mean age (y) 65.5 
Male/female ratio 71/18 
Smoking/nonsmoking ratio 60/29 
Surgical procedure  
    PE/diagnostic thoracotomy 6 (6.8%) 
    Segment resection 5 (5.5%) 
    Lobectomy 64 (72%) 
    Bilobectomy 2 (2.2%) 
    Pneumonectomy 12 (13.5%) 
Histology  
    Squamous cell carcinoma 49 (55%) 
    Adenocarcinoma 40 (45%) 
Tumor-node-metastasis staging  
    I 31 (34.8%) 
    II 23 (25.8%) 
    III 29 (32.6%) 
    IV 6 (6.8%) 
Grading  
    Well/moderately well differentiated 25 (28%) 
    Poorly differentiated/undifferentiated 64 (72%) 
Residual tumor situation  
    R0 75 (84.2%) 
    R1 6 (6.8%) 
    R2 8 (9%) 
No. of patients 89 
Mean age (y) 65.5 
Male/female ratio 71/18 
Smoking/nonsmoking ratio 60/29 
Surgical procedure  
    PE/diagnostic thoracotomy 6 (6.8%) 
    Segment resection 5 (5.5%) 
    Lobectomy 64 (72%) 
    Bilobectomy 2 (2.2%) 
    Pneumonectomy 12 (13.5%) 
Histology  
    Squamous cell carcinoma 49 (55%) 
    Adenocarcinoma 40 (45%) 
Tumor-node-metastasis staging  
    I 31 (34.8%) 
    II 23 (25.8%) 
    III 29 (32.6%) 
    IV 6 (6.8%) 
Grading  
    Well/moderately well differentiated 25 (28%) 
    Poorly differentiated/undifferentiated 64 (72%) 
Residual tumor situation  
    R0 75 (84.2%) 
    R1 6 (6.8%) 
    R2 8 (9%) 
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