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Table 2 Absolute lifetime riska of developing breast cancer by subtypeb and race/ethnicityc

From: Lifetime risks of specific breast cancer subtypes among women in four racial/ethnic groups

  White Black Hispanic Asian All races
Breast cancer subtype Percentage (95% CI) Percentage (95% CI) Percentage (95% CI) Percentage (95% CI) Percentage (95% CI)
Luminalb, d 8.10 (7.94, 8.20) 4.70 (4.41, 5.02) 4.60 (4.41, 4.80) 5.06 (4.81, 5.34) 6.79 (6.69, 6.88)
HER2-positiveb, d 1.82 (1.76, 1.88) 1.81 (1.63, 2.00) 1.56 (1.46, 1.68) 1.91 (1.78, 2.07) 1.78 (1.73, 1.83)
Triple-negativeb, d 1.25 (1.20, 1.30) 1.98 (1.80, 2.17) 1.04 (0.96, 1.13) 0.77 (0.67, 0.88) 1.20 (1.16, 1.24)
Missinge 2.68 (2.60, 2.76) 2.32 (2.11, 2.56) 1.81 (1.68, 1.95) 2.23 (2.04, 2.44) 2.44 (2.38, 2.50)
All subtypes 13.8 (13.6, 14.0) 10.8 (10.4, 11.3) 9.01 (8.74, 9.29) 9.98 (9.61, 10.4) 12.3 (12.2, 12.4)
  1. aLifetime risk is conditioned on never having had breast cancer previously. bSubtypes were defined by expression of estrogen receptor (ER), progesterone receptor (PR), and Her2/neu (HER2) as follows: luminal (ER- or PR-positive or both and HER2-negative), HER2-positive (ER- and PR-positive or -negative and HER2-positive), and triple-negative (ER-negative, PR-negative, and HER2-negative). cRacial/ethnic categories are mutually exclusive and include white (non-Hispanic white), black (non-Hispanic black), Hispanic, and Asian (non-Hispanic Asian or Pacific Islander). dExcludes 7,737 cases (5,069 whites, 505 blacks, 1,262 Hispanics, and 901 Asians) for whom ER, PR, and/or HER2 were not tested or for whom results were borderline, missing, or unknown; these cases are included in the 'All subtypes' category. eIncludes 7,737 cases (5,069 whites, 505 blacks, 1,262 Hispanics, and 901 Asians) for whom ER, PR, and/or HER2 were not tested or for whom results were borderline, missing or unknown. CI, confidence interval.