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Table 1 Number (%) of patients according to basic demographic and tumor characteristics, 1980-2006.

From: Breast cancer treatment and ethnicity in British Columbia, Canada

  Ethnic Group   
  Chinese
(n = 1,958)
South Asian
(n = 915)
Iranian
(n = 136)
P-value General Population
Age at diagnosis (yrs)      
   Mean ± SD 54.9 ± 13.4 54.1 ± 12.2 52.7 ± 10.5 0.064 59.8 ± 13.5
Diagnosis year     0.261  
   1980-1989 216 (11.0) 119 (13.0) 11 (8.1)   9,274 (24.6)
   1990-1999 805 (41.1) 353 (38.6) 61 (44.9)   14,928 (39.6)
   2000-2006 937 (47.9) 443 (48.4) 64 (47.1)   13,478 (35.8)
Stage*     <0.001  
   I 808 (45.9) 271 (32.6) 52 (43.7)   15,813 (42.0)
   II 695 (39.5) 395 (47.5) 53 (44.5)   16,137 (42.8)
   III 103 (5.9) 69 (8.3) 6 (5.0)   3,690 (9.8)
   IV 153 (8.7) 97 (11.7) 8 (6.7)   2,040 (5.4)
  1. * non-missing values only