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Table 2 Characteristics of glioma cases and healthy controls

From: Association between interleukin 8–251 T/A and +781 C/T polymorphisms and glioma risk

  Glioma Controls P
Number of subjects 300 300  
Sex (Male/Female) 165/135 163/137 0.87
Age (years), (mean ± SD) 43.6 ± 9.1 44.1 ± 9.3 0.51
Mean education (years) 10.3 ± 2.3 10.5 ± 2.2 0.28
Smoking (Ever/Never) 124/176 118/182 0.62
Alcohol drinking (Ever/Never) 106/194 102/198 0.73
Family history of cancer (YES/NO) 29/271 27/273 0.78
Histology (%)    
 Astrocytomas 223 (74.3)   
 Ependymomas 43 (14.3)   
 Oligodendrogliomas 19 (6.3)   
 Mixed gliomas 15 (5.0)   
WHO Grade (%)    
 I 17 (5.7)   
 II 106 (35.3)   
 III 76 (25.3)   
 IV 101 (33.7)