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Table 2 Demographic and clinical characteristics of CRC patients and the controls

From: Effects of genetic variations in the Adiponectin pathway genes on the risk of colorectal cancer in the Chinese population

Variables Patients, n (%) Controls, n (%) P-value
Total cases 420 555  
Gender    
   Male 280 (66.67) 339 (61.08) 0.084
   Female 140(33.33) 216 (38.92)  
Age    
Mean ± SD 62.88 ± 12.32 61.71 ± 10.65 0.113
≤ 60 186(44.29) 271 (48.83) 0.082
>60 234(55.71) 284 (51.17)  
Smoking status (Pack-year)    
Non-smoker 316 (73.24) 406 (73.15) 0.508
Smoker 104(24.76) 149(26.85)  
Alcohol consumption (year)    
Never 274(65.24) 379 (68.29) 0.514
≤ 15 119 (28.33) 139(25.05)  
> 15 27 (6.43) 37 (6.67)  
Tumor site    
Colon 191(45.48) -- --
Rectal 229(54.52) --