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Table 1 Demographic and clinical characteristics of the subjects

From: The significance and robustness of a plasma free amino acid (PFAA) profile-based multiplex function for detecting lung cancer

Subjects Patients Controls
Subgroup P1 P2 C1 C2 C3
Dataset 1 Used   Used   
  2   Used   Used  
  3 Used Used Used Used Used
  4 Used Used    
Number Total 85 86 421 323 3104
  (Male, Female) (49,36) (68,18) (245,176) (263,60) (1898,1206)
Age, y Mean (SD) 65.1 (9.7) 67.8 (8.2) 63.1 (8.7) 61.9 (6.0) 49.4 (8.0)
  Range 30-90 41-83 28-86 37-88 23-67
BMI Mean (SD) 22.1 (3.7) 22.4 (3.2) 22.8 (3.0) 23.4 (2.9) 23.2 (3.3)
  Range 14.6~31.2 15.7-34.6 14.2-37.1 16.9-35.4 14.8-41.2
Smoking status Never 26 18 222 139 1865
  Ex 29 36 106 107 434
  Current 29 29 57 62 695
  Unknown 1 3 36 15 110
pStagea I 33 33    
  II 5 5    
  III 27 22    
  IV 20 23    
  Unknown 0 3    
Histology Adenocarcinoma 59 55    
  Squamous cell carcinoma 13 12    
  Other NSCLC 5 8    
  SCLC 8 11    
  1. a: Cancer stages were determined according to the International Union Against Cancer TNM Classification of Malignant Tumors, 6th Edition [38].