A4 Invasive breast cancer detection

Table A4.1a: All‑size invasive breast cancer detection in participants aged 50–74, first screening round, 2014 to 2023

Year

Number

Crude rate

AS rate

2014

672

88.0

115.2

2015

685

83.3

109.7

2016

739

83.9

103.3

2017

795

90.9

108.1

2018

789

90.7

113.5

2019

841

90.7

113.7

2020

571

87.7

114.7

2021

749

95.8 

122.0

2022

931

103.2

126.1

2023

1,142

99.4

124.2

Note: Crude rate is the number of participants with all size invasive breast cancer detected per 10,000 participants screened; age‑standardised (AS) rate is the number of participants with all size invasive breast cancer detected per 10,000 participants screened, age‑standardised to the population of participants attending a BreastScreen Australia service in 2008.

Source: AIHW analysis of BreastScreen Australia data.

Table A4.1b: All‑size invasive breast cancer detection in participants aged 50–74, subsequent screening rounds, 2014 to 2023

Year

Number

Crude rate

AS rate

2014

 4,408 

56.0

51.2

2015

 4,485 

54.5

49.4

2016

 4,721 

55.4

50.4

2017

 4,641

54.1

49.0

2018

4,851

54.8 

49.5

2019

4,940

55.9

49.9

2020

4,407

57.0

50.4

2021

4,848

57.3

50.8

2022

4,950

57.0

51.2

2023

5,268

58.7

52.4

Note: Crude rate is the number of participants with all size invasive breast cancer detected per 10,000 participants screened; age‑standardised (AS) rate is the number of participants with all size invasive breast cancer detected per 10,000 participants screened, age‑standardised to the population of participants attending a BreastScreen Australia service in 2008.

Source: AIHW analysis of BreastScreen Australia data.

Table A4.2: Small (≤15 mm) invasive breast cancer detection in participants aged 50–74, all screening rounds, 2014 to 2023

Year

Number

Crude rate

AS rate

2014

2,962

34.3

32.3

2015

3,071

33.9

31.6

2016

3,205

34.1

31.7

2017

3,205

33.9

31.5

2018

3,308

34.0

31.5

2019

3,459

35.5

32.5

2020

2,972

35.4

32.0

2021

3,275

35.4

32.4

2022

3,386

35.3

32.5

2023

3,705

36.6

33.6

Note: Crude rate is the number of participants with small (£15 mm) invasive breast cancer detected per 10,000 participants screened; age‑standardised (AS) rate is the number of participants with small (£15 mm) invasive breast cancer detected per 10,000 participants screened, age‑standardised to the population of participants attending a BreastScreen Australia service in 2008.

Source: AIHW analysis of BreastScreen Australia data.

Table A4.3a: All‑size invasive breast cancer detection, by age group, all screening rounds, 2023

Age group (years)

Number

Crude rate

40–44

153

27.8

45–49

375

48.1

50–54

1,090

49.8

55–59

1,034

50.4

60–64

1,356

62.0

65–69

1,430

71.5

70–74

1,500

88.4

75+

650

137.3

Note: Crude rate is the number of participants with all-size invasive breast cancer detected per 10,000 participants screened.

Source: AIHW analysis of BreastScreen Australia data.

Table A4.3b: Small (≤15 mm) invasive breast cancer detection, by age group, all screening rounds, 2023

Age group (years)

Number

Crude rate

40–44

74

13.4

45–49

147

18.9

50–54

549

25.1

55–59

558

27.2

60–64

803

36.7

65–69

870

43.5

70–74

925

54.5

75+

354

74.8

Note: Crude rate is the number of participants with small (≤15 mm) invasive breast cancer detected per 10,000 participants screened.

Source: AIHW analysis of BreastScreen Australia data.

Table A4.4: Proportion of small (≤15 mm) invasive breast cancers detected in participants aged 50–74, all screening rounds, 2014 to 2023

Year

Proportion

2014

58.3

2015

59.4

2016

58.7

2017

59.0

2018

58.7

2019

59.8

2020

59.7

2021

58.5

2022

57.6

2023

57.8

Note: Figures are the number of participants with small (≤15 mm) invasive breast cancer detected, as a proportion of the number of participants with invasive breast cancer detected.

Source: AIHW analysis of BreastScreen Australia data.

Table A4.5a: All‑size invasive breast cancer detection, participants aged 50–74, by state and territory, first screening round, 2023

State and territory

Number

Crude rate

AS rate

NSW

462

107.4

145.2

Vic

264

90.3

115.6

Qld

170

83.7

86.2

WA

120

122.7

184.4

SA

61

87.4

110.2

Tas

36

146.9

155.3

ACT

18

86.5

98.0

NT

11

107.8

103.9

Australia

1,142

99.4

124.2

Notes:

  1. Crude rate is the number of participants with all size invasive breast cancer detected per 10,000 participants screened; age‑standardised (AS) rate is the number of participants with all size invasive breast cancer detected per 10,000 participants screened, age‑standardised to the population of participants attending a BreastScreen Australia service in 2008.
  2. State and territory differences need to be taken into consideration when interpreting breast cancer detection results.
  3. A small number of participants may be screened in one jurisdiction but have their breast cancer detected in another.

Source: AIHW analysis of BreastScreen Australia data.

Table A4.5b: All‑size invasive breast cancer detection participants aged 50–74, by state and territory, subsequent screening rounds, 2023

State and territory

Number

Crude rate

AS rate

NSW

1,685

60.3

53.7

Vic

1,269

59.6

53.6

Qld

1,086

56.5

50.9

WA

545

57.8

50.8

SA

425

58.0

51.1

Tas

141

54.4

51.5

ACT

88

59.2

49.5

NT

29

63.6

54.8

Australia

5,268

58.7

52.4

Notes:

  1. Crude rate is the number of participants with all size invasive breast cancer detected per 10,000 participants screened; age‑standardised (AS) rate is the number of participants with all size invasive breast cancer detected per 10,000 participants screened, age‑standardised to the population of participants attending a BreastScreen Australia service in 2008.
  2. State and territory differences need to be taken into consideration when interpreting breast cancer detection results.
  3. A small number of participants may be screened in one jurisdiction but have their breast cancer detected in another.

Source: AIHW analysis of BreastScreen Australia data.

Table A4.5c: All‑size invasive breast cancer detection participants aged 50–74, by state and territory, all screening rounds, 2023

State and territory

Number

Crude rate

AS rate

NSW

 2,147 

66.5

62.7

Vic

 1,533 

63.3

59.5

Qld

 1,256 

59.1

54.8

WA

 665 

63.9

59.3

SA

 486 

60.6

55.9

Tas

 177 

62.4

59.9

ACT

 106 

62.5

55.5

NT

 40 

71.7

67.6

Australia

 6,410 

63.3

59.2

Notes:

  1. Crude rate is the number of participants with all size invasive breast cancer detected per 10,000 participants screened; age‑standardised (AS) rate is the number of participants with all size invasive breast cancer detected per 10,000 participants screened, age‑standardised to the population of participants attending a BreastScreen Australia service in 2008.
  2. State and territory differences need to be taken into consideration when interpreting breast cancer detection results.
  3. A small number of participants may be screened in one jurisdiction but have their breast cancer detected in another.

Source: AIHW analysis of BreastScreen Australia data.

Table A4.6a: Small (≤15 mm) invasive breast cancer detection participants aged 50–74, by state and territory, first screening round, 2023

State and territory

Number

Crude rate

AS rate

NSW

210

48.8

62.8

Vic

116

39.7

52.1

Qld

73

35.9

38.0

WA

53

54.2

77.1

SA

33

47.3

63.3

Tas

17

69.4

77.3

ACT

9

43.3

41.1

NT

6

58.8

60.9

Australia

517

45.0

55.6

Notes:

  1. Crude rate is the number of participants with small (≤15 mm) invasive breast cancer detected per 10,000 participants screened; age‑standardised (AS) rate is the number of participants with small (≤15 mm) invasive breast cancer detected per 10,000 participants screened, age‑standardised to the population of participants attending a BreastScreen Australia service in 2008.
  2. State and territory differences need to be taken into consideration when interpreting small (≤15 mm) breast cancer detection results.
  3. A small number of participants may be screened in one jurisdiction but have their small (≤15 mm) breast cancer detected in another.

Source: AIHW analysis of BreastScreen Australia data.

Table A4.6b: Small (≤15 mm) invasive breast cancer detection participants aged 50–74, by state and territory, subsequent screening rounds, 2023

State and territory

Number

Crude rate

AS rate

NSW

1,030

36.8

32.4

Vic

744

35.0

31.0

Qld

653

34.0

30.0

WA

331

35.1

29.8

SA

260

35.5

30.3

Tas

89

34.3

30.6

ACT

64

43.0

36.1

NT

17

37.3

29.0

Australia

3,188

35.5

31.1

Notes:

  1. Crude rate is the number of participants with small (≤15 mm) invasive breast cancer detected per 10,000 participants screened; age‑standardised (AS) rate is the number of participants with small (≤15 mm) invasive breast cancer detected per 10,000 participants screened, age‑standardised to the population of participants attending a BreastScreen Australia service in 2008.
  2. State and territory differences need to be taken into consideration when interpreting small (≤15 mm) breast cancer detection results.
  3. A small number of participants may be screened in one jurisdiction but have their small (≤15 mm) breast cancer detected in another.

Source: AIHW analysis of BreastScreen Australia data.

Table A4.6c: Small (≤15 mm) invasive breast cancer detection participants aged 50–74, by state and territory, all screening rounds, 2023

State and territory

Number

Crude rate

AS rate

NSW

1,240

38.4

35.6

Vic

860

35.5

33.0

Qld

726

34.2

31.1

WA

384

36.9

33.2

SA

293

36.5

32.6

Tas

106

37.4

34.3

ACT

73

43.1

38.1

NT

23

41.2

37.9

Australia

3,705

36.6

33.6

Notes:

  1. Crude rate is the number of participants with small (≤15 mm) invasive breast cancer detected per 10,000 participants screened; age‑standardised (AS) rate is the number of participants with small (≤15 mm) invasive breast cancer detected per 10,000 participants screened, age‑standardised to the population of participants attending a BreastScreen Australia service in 2008.
  2. State and territory differences need to be taken into consideration when interpreting small (≤15 mm) breast cancer detection results.
  3. A small number of participants may be screened in one jurisdiction but have their small (≤15 mm) breast cancer detected in another.

Source: AIHW analysis of BreastScreen Australia data.

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