Skip to main content

Table 1 Distribution of demographic variables in lung cancer and controls

From: Association between polymorphism in CDKN2B-AS1 gene and its interaction with smoking on the risk of lung cancer in a Chinese population

Risk factorLung cancerControlsP
 (N = 507)(N = 542) 
Age (mean ± SD)59.20 ± 9.87258.10 ± 11.5040.096
Gender
Male255 (50.3%)262 (48.3%)0.527
Female252 (49.7%)280 (51.7%) 
Smoking status
Ever217 (42.8%)66 (12.2%)< 0.001
Never290 (57.2%)476 (87.8%) 
Stage
I,II93 (18.3%)  
III146 (28.8%)  
IV84 (16.6%)  
Missing184 (36.3%)  
Pathological type
AD248 (48.92%)  
SQ125 (24.65%)  
SCC90 (17.75%)  
Else44 (8.68%)  
  1. AD lung adenocarcinoma, SQ lung squamous cell carcinoma, SCC small cell lung cancer