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Table 1 Baseline characteristics of the patients

From: Treatment and outcome of patients with metastatic NSCLC: a retrospective institution analysis of 493 patients

  No therapy (n = 57) Patients receiving any therapie (n = 436) Patients with systemic therapy (n = 352) Patients with local therapy only (n = 84)
Age at diagnosis (years)         
Median 72   62   62   65  
Range 50-84   34-86   34-86   44-85  
< 70 years 22 (38.6) 321 (73.6) 261 (74.1) 60 (71.4)
≥ 70 years 35 (61.4) 115 (26.4) 91 (25.9) 24 (28.6)
Sex         
Male 46 (80.7) 299 (68.6) 237 (67.3) 62 (73.8)
Female 11 (19.3) 137 (31.4) 115 (32.7) 22 (26.2)
Smoking status         
Neversmoker 2 (4.8) 35 (9.9) 35 (12.5) 0 (0)
Former smoker 25 (59.5) 143 (40.5) 115 (40.9) 28 (38.9)
Current smoker 15 (35.7) 175 (49.6) 131 (46.6) 44 (61.1)
Unknown 15   83   71   12  
Stage         
Stage IV, UICC 6. edition 57 100 436 (100) 352 (100) 84 (100)
Stage IV, UICC 7. edition 56 (98.2) 419 (96.1) 338 (96.0) 81 (96.4)
Stage IIIB, UICC 7. edition 1 (1.8) 17 (3.9) 14 ( 4.0) 3 (3.6)
Histology         
Adenocarcinoma 25 (43.9) 255 (58.5) 222 (63.1) 33 (39.3)
Squamous cell carcinoma 18 (31.6) 85 (19.5) 56 (15.9) 29 (34.5)
Large cell undifferentiated carcinoma 14 (24.6) 96 (22.0) 74 (21.0) 22 (26.2)
  1. Percentages are displayed in brackets. Stage classification according to either 6th or 7th UICC edition. Because of rounding, not all percentages sum to 100.