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Table 3 Unadjusted screening performance measurements

From: Influence of breast compression pressure on the performance of population-based mammography screening

 

Total

Group 1

Group 2

Group 3

Group 4

Group 5

Recall/1000

22.8

25.0

20.5

22.3

21.8

24.3

False positives/1000

16.5

18.4

14.3

15.2

16.1

18.6

Screen-detected cancers/1000

6.3

6.7

6.2

7.1

5.7

5.7

Interval cancers/1000

2.0

1.4

1.8

1.8

2.5

2.7

Program sensitivity (%)

75.6

82.7

77.4

79.7

70.0

68.2

12-month sensitivity (%)

88.3

90.3

91.6

93.5

85.4

80.4

Specificity (%)

98.3

98.2

98.6

98.5

98.4

98.1

Positive predictive value (%)

27.5

26.7

30.1

31.8

26.3

23.5

  1. The sensitivity is calculated with all interval cancers, the 12-month sensitivity is calculated with the interval cancers that were detected within 12 months after the examination