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Table 3 Distribution of demographic and tumor characteristics of stages 1–3 first primary invasive breast cancer by race/ethnicity: California Cancer Registry 2000–2010*

From: Disparities in race/ethnicity and socioeconomic status: risk of mortality of breast cancer patients in the California Cancer Registry, 2000–2010

  Race/Ethnicity
   White Black Hispanic API Total
N (%)   120,435 (67.2%) 10,637 (5.9%) 28,380 (15.8%) 19,691 (11.1%) 179,143
Year at diagnosis       
  n 79,226 6,662 17,054 11,641 114,583
    2000-2006 % within race/ethnicity 65.8% 62.6% 60.1% 59.1% 64.0%
  n 41,209 3,975 11,326 8,050 64,560
    2007-2010 % within race/ethnicity 34.2% 37.4% 39.9% 40.9% 36.0%
Socioeconomic status       
  n 25,016 5,454 14,848 4,550 49,868
    Lowest/Least Affluent % within race/ethnicity 20.8% 51.3% 52.3% 23.1% 27.8%
  n 25,283 2,349 5,756 3,740 37,128
    Intermediate % within race/ethnicity 21.0% 22.1% 20.3% 19.0% 20.7%
  n 70,136 2,834 7,776 11,401 92,147
    Highest/Most Affluent % within race/ethnicity 58.2% 26.6% 27.4% 57.9% 51.4%
Age at diagnosis (years)       
  n 1,600 299 1,215 574 3,688
    <35 % within race/ethnicity 1.3% 2.8% 4.3% 2.9% 2.1%
  n 81,900 8,055 22,331 15,784 128,070
    35-69 % within race/ethnicity 68.0% 75.7% 78.7% 80.2% 71.5%
  n 23,132 1,518 3,466 2,394 30,510
    70-79 % within race/ethnicity 19.2% 14.3% 12.2% 12.2% 17.0%
  n 12,223 672 1,190 851 14,936
    80-89 % within race/ethnicity 10.1% 6.3% 4.2% 4.3% 8.3%
  n 1,580 93 178 88 1,939
    90+ % within race/ethnicity 1.3% 0.9% 0.6% 0.4% 1.1%
AJCC stage n 62,693 4,195 11,321 9,326 87,535
    Stage 1 % within race/ethnicity 52.1% 39.4% 39.9% 47.4% 48.9%
  n 45,791 4,751 12,608 8,258 71,408
    Stage 2 % within race/ethnicity 38.0% 44.7% 44.4% 41.9% 39.9%
  n 11,951 1,691 4,451 2,107 20,200
    Stage 3 % within race/ethnicity 9.9% 15.9% 15.7% 10.7% 11.3%
ER/PR/HER2 subtype       
  n 52,797 3,240 10,526 7,859 74,422
    ER+/PR+/HER2- % within race/ethnicity 60.3% 42.9% 51.0% 54.9% 57.2%
  n 7,689 709 2,181 1,665 12,244
    ER+/PR+/HER2+ % within race/ethnicity 8.8% 9.4% 10.6% 11.6% 9.4%
  n 8,791 735 1,816 1,172 12,514
    ER+/PR-/HER2- % within race/ethnicity 10.0% 9.7% 8.8% 8.2% 9.6%
  n 2,675 252 678 513 4,118
    ER+/PR-/HER2+ % within race/ethnicity 3.1% 3.3% 3.3% 3.6% 3.2%
  n 640 77 194 113 1,024
    ER-/PR+/HER2- % within race/ethnicity 0.7% 1.0% 0.9% 0.8% 0.8%
  n 281 45 126 61 513
    ER-/PR+/HER2+ % within race/ethnicity 0.3% 0.6% 0.6% 0.4% 0.4%
  n 9,924 1,929 3,371 1,601 16,825
    ER-/PR-/HER2- % within race/ethnicity 11.3% 25.5% 16.3% 11.2% 12.9%
  n 4,789 572 1,748 1,329 8,438
    ER-/PR-/HER2+ % within race/ethnicity 5.5% 7.6% 8.5% 9.3% 6.5%
Tumor grade n 29,749 1,516 4,613 3,454 39,332
    Grade I % within race/ethnicity 26.2% 15.1% 17.3% 18.6% 23.3%
  n 49,124 3,570 10,610 7,972 71,276
    Grade II % within race/ethnicity 43.3% 35.5% 39.8% 43.0% 42.3%
  n 32,747 4,691 10,823 6,785 55,046
    Grade III % within race/ethnicity 28.9% 46.7% 40.6% 36.6% 32.6%
  n 1,802 276 620 345 3,043
    Grade IV % within race/ethnicity 1.6% 2.7% 2.3% 1.9% 1.8%
  1. *Excludes cases classified as American Indian and Hispanic + Other race.