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Table 1 Descriptive characteristics of first primary male breast cancer cases from the SEER 18 registries, 1988–2012 (N = 5753)

From: Descriptive characteristics of prostate cancer in patients with a history of primary male breast cancer – a SEER analysis

 

n

(%)

Age at index breast cancer, years

 Mean (SD)

65.2

(12.6)

Median (interquartile range)

66

(56–75)

 20–44

334

(5.8)

 45–54

869

(15.1)

 55–64

1447

(25.2)

 65–74

1607

(27.9)

 75+

1496

(26.0)

Race/ethnicity

 Non-Hispanic White

4291

(74.6)

 Black

757

(13.2)

 Asian/Pacific Islander/Alaska Native

311

(5.4)

 Hispanic

340

(5.9)

 Unknown

54

 

Breast cancer AJCC stage

 I

1696

(29.5)

 II

2145

(37.3)

 III

951

(16.5)

 Missing/unknown

961

 

Hormone receptor status

 ER/PR negative

213

(3.7)

 ER and/or PR positive

4373

(76.0)

 Unknown

1167

 

Tumor size

 <2 cm

3923

(68.2)

 ≥2 cm

1348

(23.4)

 Missing

482

 

Lymph node status

 Negative

2982

(51.8)

 Positive

2626

(23.4)

 Missing

482

 

 Surgery

 Surgery performed

5210

(90.6)

 Refused or not recommended

466

(8.1)

 Missing/unknown

77

 

Radiation

 No

4199

(73.0)

 Yes

1371

(23.8)

 Unknown

183

 

Outcome status

 Second primary prostate cancer

250

(4.3)

 Other second primary cancer

648

(11.3)

Vital status

 Alive

3312

(57.6)

 Died (any cause)

2441

(42.4)

 Cancer-specific death

1080

(18.8)

Person-years of follow up

 Mean (SD)

5.6

(4.9)

 Median (interquartile range)

4.3

(1.8–8.4)