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Table 3 Incidence rates of all cardiovascular disease events and ischemic heart disease events, for patients with and without boost stratified for age

From: Competing risk analysis of cardiovascular disease risk in breast cancer patients receiving a radiation boost

 

N total

Events

N (%)

Person-years

Incidence rate

per 1000

person-years

Incidence rates per 1000 person-years, stratified for age

< 50 years

Nnb = 649

Nb = 608

50–60 years

Nnb = 919

Nb = 863

> 60 years

Nnb = 1775

Nb = 446

Cardiovascular disease

       

 No boost

3343

201 (6.0)

17,545

11.5

4.0

4.7

17.0

 Boost

1917

147 (7.7)

17,913

8.2

5.0

8.0

13.7

Ischemic heart disease

       

 No boost

3343

51 (1.5)

17,545

2.9

0.3

0.4

4.9

 Boost

1917

35 (1.8)

17,913

2.0

1.0

2.4

2.4

  1. Nnb: Number of patients in no boost group, Nb: Number of patients in boost group
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Cardio-Oncology

ISSN: 2057-3804

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