A7b Ductal carcinoma in situ incidence

Table A7.10: Incidence of DCIS in women, by age group, 2021

Age group (years)

New cases of DCIS

Crude rate

40–49

341

20.4

50–59

627

39.1

60–69

705

49.8

70+

613

37.6

50–74

1,716

47.5

All Ages

2,368

18.3

Notes:

  1. ‘Crude rate’ is the number of new cases of DCIS per 100,000 women.
  2. ‘All ages’ includes age groups from <20 to 85+.
  3. The counting rules for DCIS incidence were revised for the 2016 ACD. For this reason, comparisons should not be made with DCIS data from previous versions of the ACD. See Box 7.3 for more details.

Source: AIHW Australian Cancer Database 2021.

Table A7.11: Incidence of DCIS in women, 2002 to 2021

Year of diagnosis

50–74 new cases

All ages new cases

50–74 AS rate

All ages AS rate

2002

921

1,337

40.6

13.4

2003

974

1,395

41.7

13.6

2004

1,037

1,493

43.5

14.3

2005

1,055

1,501

42.9

14.0

2006

1,028

1,455

40.7

13.3

2007

1,072

1,549

41.2

13.8

2008

1,197

1,647

44.6

14.3

2009

1,238

1,733

45.0

14.8

2010

1,289

1,776

45.3

14.8

2011

1,314

1,819

44.8

14.7

2012

1,387

1,876

46.0

14.8

2013

1,565

2,141

50.7

16.6

2014

1,745

2,347

55.1

17.9

2015

1,704

2,276

52.5

16.9

2016

1,685

2,278

51.0

16.6

2017

1,616

2,186

47.9

15.6

2018

1,748

2,356

50.8

16.5

2019

1,730

2,360

49.0

16.2

2020

1,661

2,243

45.8

15.0

2021

1,716

2,368

46.3

15.6

Notes:

  1. ‘Age‑standardised (AS) rate’ is the number of new cases of DCIS per 100,000 women, age‑standardised to the Australian population at 30 June 2001.
  2. The counting rules for DCIS incidence were revised for the 2016 ACD. For this reason, comparisons should not be made with DCIS data from previous versions of the ACD. See Box 7.3 for more details.

Source: AIHW Australian Cancer Database 2021.

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