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Table 1

Demographic and clinical characteristics of 93 University of Michigan Prostate Cancer Genetics Project families used for BRCA1 mutation screening

n (%) or mean (range)
Race  
 White 82 (88.2) 
 Black 10 (10.7) 
 Other 1 (1.1) 
Number of prostate cancer cases/family  
 Confirmed 4.1 (2 to 14) 
 Total 4.3 (2 to 14) 
Mean age at diagnosis of confirmed prostate cancer cases in pedigree (yrs) 63.7 (37 to 88) 
Number of families with breast cancer*  
 0 58 (62.4) 
 1 to 2 30 (32.2) 
 >2 5 (5.4) 
Number of families with ovarian cancer*  
 0 85 (91.4) 
 1 to 2 8 (8.6) 
 >2 0 (0.0) 
n (%) or mean (range)
Race  
 White 82 (88.2) 
 Black 10 (10.7) 
 Other 1 (1.1) 
Number of prostate cancer cases/family  
 Confirmed 4.1 (2 to 14) 
 Total 4.3 (2 to 14) 
Mean age at diagnosis of confirmed prostate cancer cases in pedigree (yrs) 63.7 (37 to 88) 
Number of families with breast cancer*  
 0 58 (62.4) 
 1 to 2 30 (32.2) 
 >2 5 (5.4) 
Number of families with ovarian cancer*  
 0 85 (91.4) 
 1 to 2 8 (8.6) 
 >2 0 (0.0) 
*

Cases of breast and/or ovarian cancer were counted only if they were in a first and/or second degree relationship to a man with confirmed prostate cancer.

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