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Table 1

Patient characteristics

CharacteristicDCIS casesa (n = 100)DCIS controlsa (n = 100)
Demographic/reproductive   
 Median age, diagnosis (range) 52 yr (27–88) 51 yr (27–77) 
 Race   
  White 67 79 
  Black 12 10 
  Hispanic 15 
  Asian 
 Unknown 
 Median age, menarche (range) 13 yr (9–17) 13 yr (10–17) 
 Median age, first childbirth (range) 23 yr (15–38) 24 yr (16–39) 
Pathologic/quantitative morphometric   
 Nuclear grade 1 
 Nuclear grade 2 38 38 
 Nuclear grade 3 56 56 
 Necrosis   
  Absent 48 32 
  Focal 20 28 
  Extensive 32 40 
 Median z score 8.42 7.67 
CharacteristicDCIS casesa (n = 100)DCIS controlsa (n = 100)
Demographic/reproductive   
 Median age, diagnosis (range) 52 yr (27–88) 51 yr (27–77) 
 Race   
  White 67 79 
  Black 12 10 
  Hispanic 15 
  Asian 
 Unknown 
 Median age, menarche (range) 13 yr (9–17) 13 yr (10–17) 
 Median age, first childbirth (range) 23 yr (15–38) 24 yr (16–39) 
Pathologic/quantitative morphometric   
 Nuclear grade 1 
 Nuclear grade 2 38 38 
 Nuclear grade 3 56 56 
 Necrosis   
  Absent 48 32 
  Focal 20 28 
  Extensive 32 40 
 Median z score 8.42 7.67 
a

Cases, DCIS with invasive cancer; controls, DCIS alone.

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