Table 1—

Clinical characteristics and demographics of nonsmall cell lung cancer(NSCLC) patients and control subjects

ControlsNSCLCp-value
Subjects n202189
Age yrs49.5±15.657.0±11.7<0.001
Males119 (59)126 (67)>0.05
Smoking status
 Ever-smoker78 (39)105 (56)
 Nonsmoker124 (61)84 (44)0.026
Tumour cell types
 Adenocarcinoma105 (55.6)
 Squamous cell32 (16.9)
 Large cell16 (8.5)
 Unclassified NSCLC36 (19.0)
Overall TNM stage
 I–II5 (2.6)
 IIIA8 (4.2)
 IIIB61 (32.3)
 IV109 (57.7)
 Unknown6 (3.2)
  • Data are presented as mean±sd or n (%). TNM: tumour, node, metastasis.