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Table 3 AUCs by subgroups

From: Breast cancer risk prediction in women aged 35–50 years: impact of including sex hormone concentrations in the Gail model

 

BCRATa

Gailb

Gail + AMHb

Gail + testosteroneb

Gail + AMH + testosteroneb

Total AUC

55.0 (53.1, 56.8)

55.3 (53.4, 57.1)

57.6 (55.7, 59.5)

56.2 (54.4, 58.1)

58.1 (56.2, 59.9)

Age at blood donation, years

 ≤ 40

55.9 (52.3, 59.6)

56.2 (52.5, 59.8)

57.5 (53.8, 61.1)

57.3 (53.7, 61.0)

58.1 (54.4, 61.8)

 41–45

55.2 (52.2, 58.2)

54.9 (51.9, 57.9)

56.3 (53.3, 59.2)

56.0 (53.0, 58.9)

56.6 (53.7, 59.6)

 > 45

58.6 (55.4, 61.9)

58.6 (55.3, 61.9)

60.6 (57.4, 63.8)

60.9 (57.7, 64.1)

62.1 (58.9, 65.3)

Gail 5-year risk score, %

 < 1c

53.2 (50.2, 55.2)

52.9 (50.4, 55.4)

54.7 (52.2, 57.2)

54.3 (51.8, 56.8)

55.9 (53.4, 58.3)

 ≥ 1c

56.6 (53.7, 59.5)

58.2 (55.3, 61.0)

59.1 (56.3, 62.0)

57.4 (54.3, 60.5)

59.2 (56.3, 62.1)

Estrogen receptor status

 ER-positive

56.1 (53.8, 58.4)

56.4 (54.1, 58.8)

58.9 (56.2, 61.6)

57.2 (54.9, 59.5)

59.2 (56.3, 62.0)

 ER-negative

55.8 (51.1, 60.5)

56.8 (52.1, 61.5)

58.0 (53.3, 62.7)

57.1 (52.4, 61.8)

57.1 (52.3, 61.8)

Number of first-degree family members with breast cancer, n (%)

 0

52.2 (50.0, 54.3)

52.8 (50.6, 55.0)

55.6 (52.9, 58.3)

54.6 (52.4, 56.8)

56.8 (54.6, 58.9)

 ≥ 1

55.9 (52.1, 59.6)

55.0 (51.3, 58.7)

57.2 (53.4, 60.9)

56.4 (52.7, 60.1)

57.2 (52.0, 62.4)

  1. aEstimates from the model as implemented in BCRAT and using BCRAT regression coefficients
  2. bModel including Gail model variables and biomarker(s) and using regression coefficients in Table 2
  3. cMedian 5-year absolute risk was approximately 1%