Skip to main content

Table 1 Selected characteristics of DCISa study cohort

From: Declining recurrence among ductal carcinoma in situ patients treated with breast-conserving surgery in the community setting

Characteristics

Full cohort

(Number)

%

Recurrences

(Number)

%

Total

2995

100.0

325

100.0

Diagnosis year

    

   1990-1991

256

8.6

54

16.6

   1992-1993

354

11.8

50

15.4

   1994-1995

444

14.8

76

23.4

   1996-1997

558

18.6

81

24.9

   1998-1999

663

22.1

47

14.5

   2000-2001

720

24.0

17

5.2

Age at diagnosis (years)

    

   <50

767

25.6

103

31.7

   50-59

853

28.5

94

28.9

   60-69

800

26.7

86

26.5

   70+

575

19.2

42

12.9

Race

    

   Asian

360

12.0

29

8.9

   Black

289

9.6

47

14.5

   Hispanic

257

8.6

28

8.6

   Other

8

0.3

0

0.0

   White

2045

68.3

220

67.7

   Unknown

36

1.2

1

0.3

Adjuvant therapy

    

   None (BCSb only)

1275

42.6

223

68.6

   Radiotherapy (no Tamoxifen)

1257

42.0

95

29.2

   Tamoxifen (no Radiotherapy)

132

4.4

2

0.6

   Radiotherapy+Tamoxifen

331

11.0

5

1.5

  1. a Ductal carcinoma in situ
  2. b Breast-conserving surgery