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Table 5 Five-year risk of breast cancer by age and model B risk decile

From: Risk prediction models with incomplete data with application to prediction of estrogen receptor-positive breast cancer: prospective data from the Nurses' Health Study

Model B risk decile

Age group, years

 

1

2

3

4

5

6

7

8

9

10

30–34

5-year incidencea

65

73

82

97

105

127

147

197

249

321

 

RR

1

1.1

1.3

1.5

1.6

2.0

2.3

3.0

3.8

5.0

35–39

5-year incidencea

82

107

126

142

160

182

214

259

328

504

 

RR

1

1.3

1.5

1.7

2.0

2.2

2.6

3.1

4.0

6.1

40–44

5-year incidencea

117

159

191

221

253

294

350

425

527

767

 

RR

1

1.4

1.6

1.9

2.1

2.5

3.0

3.6

4.5

6.6

45–49

5-year incidencea

177

249

299

347

401

467

550

659

823

1,231

 

RR

1

1.4

1.7

2.0

2.7

2.6

3.1

3.7

4.6

7.0

50–54

5-year incidencea

266

373

447

522

605

702

819

973

1,204

1,824

 

RR

1

1.4

1.7

2.0

2.3

2.6

3.1

3.7

4.5

6.9

55–59

5-year incidencea

351

495

595

692

795

913

1,057

1,247

1,542

2,368

 

RR

1

1.4

1.7

2.0

2.3

2.6

3.0

3.6

4.4

6.7

60–64

5-year incidencea

436

630

759

881

1,009

1,151

1,323

1,548

1,909

2,982

 

RR

1

1.4

1.7

2.0

2.3

2.6

3.0

3.6

4.4

6.8

65–69

5-year incidencea

533

788

951

1,105

1,265

1,445

1,660

1,941

2,383

3,714

 

RR

1

1.5

1.8

2.0

2.4

2.7

3.1

3.6

4.5

7.0

70–74

5-year incidencea

635

948

1,160

1,358

1,563

1,790

2,058

2,419

2,991

4,616

 

RR

1

1.5

1.8

2.1

2.5

2.8

3.2

3.8

4.7

7.3

75–79

5-year incidencea

681

1,077

1,326

1,578

1,827

2,119

2,462

2,954

3,671

5,785

 

RR

1

1.6

1.9

2.3

2.7

3.1

3.6

4.3

5.4

8.5

  1. aFive-year incidence per 105 person-years adjusting for competing mortality risks. RR, relative risk.