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Table 2 Comparison of the overall performance of MG, BSGI and subgroups for detecting malignancy

From: The usefulness of addition of breast-specific gamma imaging to mammography in women with dense breast

 

MG

BSGI

P value

BSGI_MG

P valuea

BSGI_MG0

P valueb

BSGI_MG4a

P valuec

Sensitivity (CI)

87.95

(82.9–91.9)

88.39

(83.5–92.3)

1.000

96.43

(93.1–98.4)

< 0.001

95.98

(92.5–98.1)

< 0.001

94.64

(90.8–97.2)

0.003

Specificity (CI)

66.83

(62.0–71.4)

81.44

(77.3–85.1)

< 0.001

58.17

(53.2–63.0)

< 0.001

69.80

(65.1–74.2)

0.224

77.23

(72.8–81.2)

< 0.001

AUC (CI)

0.774

(0.739–0.806)

0.849

(0.819—0.876)

< 0.001

0.773

(0.738–0.805)

0.978

0.829

(0.797–0.858)

0.022

0.859

(0.830–0.886)

< 0.001

PPV (CI)

59.52

(54.0–64.8)

72.53

(66.8–77.7)

 

56.10

(51.0–61.1)

 

63.80

(58.4–68.9)

 

69.74

(64.2–74.9)

 

NPV (CI)

90.91

(87.0–93.9)

92.68

(89.5–95.2)

 

96.71

(93.6–98.6)

 

96.91

(94.2–98.6)

 

96.30

(93.6–98.1)

 
  1. BSGI breast-specific gamma imaging, MG mammography, CI confidence interval, PPV positive predictive value, NPV negative predictive value
  2. aMG versus BSGI
  3. bMG versus BSGI + MG0
  4. cMG versus BSGI + MG4a