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Table 1 Characteristics of the Study Population

From: Risk of urinary bladder cancer: a case-control analysis of industry and occupation

  Case Control  
Characteristic (N = 604) (N = 604) PValue
Gender, N (%)    
   Male 464 (76.8) 464 (76.8)  
   Female 140 (23.2) 140 (23.2) 0.99
Smoking status, N (%)    
   Never 163 (27.0) 282 (46.7)  
   Former 279 (46.2) 277 (45.9)  
   Current 162 (26.8) 45 (7.5) <0.0001
   Ever 441 (73.0) 322 (53.3) <0.0001
Pack-year, mean (SD) 43.14 (30.5) 28.81 (27.7) <0.0001
Age, mean (SD) 63.64 (11.0) 63.02 (10.5) 0.99