Table 1 The reported incidence of microinvasion by screening year.

From: The presentation, management and outcome of patients with ductal carcinoma in situ (DCIS) with microinvasion (invasion ≤1 mm in size)—results from the UK Sloane Project

Screening year

Microinvasion present

%

Microinvasion absent

%

Unknown

%

Total

03/04

74

7%

1040

93%

3

0%

1117

04/05

80

6%

1210

94%

1

0%

1291

05/06

57

4%

1260

95%

3

0%

1320

06/07

73

5%

1290

95%

2

0%

1365

07/08

54

4%

1282

95%

17

1%

1353

08/09

62

5%

1245

95%

9

1%

1316

09/10

42

3%

1272

97%

4

0%

1318

10/11

49

4%

1224

96%

3

0%

1276

11/12

30

3%

941

96%

10

1%

981

Grand total

521

5%

10,764

95%

52

0%

11,337