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Table 5 Sensitivity, specificity, and cancer detection rate among women 40–49 years old

From: Impact of breast density on diagnostic accuracy in digital breast tomosynthesis versus digital mammography: results from a European screening trial

Quintile40−49

Sensitivity DBT % (n) (95% CI)

Sensitivity DM

% (n) (95% CI)

Specificity DBT

% (n) (95% CI)

Specificity DM

% (n) (95% CI)

CDR DBT

(n) (95% CI)

CDR DM

(n) (95% CI)

PD 140–49

87.5% (7/8)

(52.9–97.8)

75.0% (6/8)

(40.9–92.9)

97.3% (795/818)

(96.0–98.2)

98.3% (804/818)

(97.1–99.0)

8.5 (7/826)

(4.1–17.4)

7.3 (6/826)

(3.3–15.8)

PD 240–49

75.0% (3/4)

(30.1–95.4)

50.0% (2/4)

(15.0–85.0)

96.5% (793/822)

(95.0–97.5)

96.8% (796/822)

(95.4–97.8)

3.6 (3/826)

(1.2–10.6)

2.4 (2/826)

(0.7–8.8)

PD 340–49

100.0% (3/3)

(43.9–100.0)

66.7% (2/3)

(20.8–93.9)

95.1% (783/823)

(93.4–96.4)

96.5% (794/823)

(95.0–97.5)

3.6 (3/826)

(1.2–10.6)

2.4 (2/826)

(0.7–8.8)

PD 440–49

75.0% (6/8)

(40.9–92.9)

25.0% (2/8)

(7.2–59.1)

95.1% (778/818)

(93.4–96.4)

96.3% (788/818)

(94.8–97.4)

7.3 (6/826)

(3.3–15.8)

2.4 (2/826)

(0.7–8.8)

PD 540–49

80.0% (4/5)

(37.6–96.4)

60.0% (3/5)

(23.1–88.2)

95.1% (781/821)

(93.4–96.4)

96.8% (795/821)

(95.4–97.8)

4.8 (4/826)

(1.9–12.4)

3.6 (3/826)

(1.2–10.6)

Overall40−49

82.1% (23/28)

(64.4–92.1)

53.6% (15/28)

(35.8–70.5)

95.8% (3931/4102)

(95.2–96.4)

97.0% (3977/4102)

(96.4–97.4)

5.6 (23/4130)

(3.7–8.3)

3.6 (15/4130)

(2.2–6.0)

DA 140–49

50.0% (1/2)

(9.5–90.6)

100.0% (2/2)

(34.2–100.0)

97.0% (799/824)

(95.6–97.9)

97.5% (803/824)

(96.1–98.3)

1.2 (1/826)

(0.2–6.8)

2.4 (2/826)

(0.7–8.8)

DA 240–49

100.0% (6/6)

(61.0–100.0)

66.7% (4/6)

(30.0–90.3)

96.5% (791/820)

(95.0–97.5)

98.2% (805/820)

(97.0–98.9)

7.3 (6/826)

(3.3–15.8)

4.8 (4/826)

(1.9–12.4)

DA 340–49

62.5% (5/8)

(30.6–86.3)

37.5% (3/8)

(13.7–69.4)

96.1% (786/818)

(94.5–97.2)

96.9% (793/818)

(95.5–97.9)

6.1 (5/826)

(2.6–14.1)

3.6 (3/826)

(1.2–10.6)

DA 440–49

80.0% (4/5)

(37.55–96.4)

40.0% (2/5)

(11.8–76.9)

95.4% (783/821)

(93.7–96.6)

96.0% (788/821)

(94.4–97.1)

4.8 (4/826)

(1.9–12.4)

2.4 (2/826)

(0.7–8.8)

DA 540–49

100.0% (7/7)

(64.8–100.0)

57.1% (4/7)

(25.1–84.2)

94.3% (722/819)

(92.5–95.7)

96.2% (788/819)

(94.7–97.3)

8.5 (7/826)

(4.1–17.4)

4.8 (4/826)

(1.9–12.4)

Overall40−49

82.1% (23/28)

(64.4–92.1)

53.6% (15/28)

(35.8–70.5)

95.8% (3931/4102)

(95.2–96.4)

97.0% (3977/4102)

(96.4–97.4)

5.6 (23/4130)

(3.7–8.3)

3.6 (15/4130)

(2.2–6.0)

  1. DBT digital breast tomosynthesis; CI confidence interval; DM digital mammography; CDR cancer detection rate per 1000 women screened; PD breast percent density; DA absolute dense area