Table 1.

Demographics of overall male breast cancer cohort (n = 708)

Demographic	N	Total	%
Ethnicity
Caucasian	468	708	66.1
Ashkenazi Jewish	70	708	9.9
African American	58	708	8.2
Asian	23	708	3.2
Hispanic	16	708	2.3
Middle Eastern	5	708	0.7
Native American	1	708	0.1
Mixed ethnicity	20	708	2.8
Other	3	708	0.4
Unknown	44	708	6.2
Panel ordered (total number of genes on panel)
BRCAplus (5–6)	115	708	16.2
GYNplus (9–13)	7	708	1.0
BRCAplus-expanded	17	708	2.4
BreastNext (14–18)	297	708	41.9
OvaNext (19–24)	66	708	9.3
PancNext (range)	5	708	0.7
CancerNext (22–32)	148	708	20.9
CancerNext-expanded (43–49)	53	708	7.5
Age at testing
20–29	2	708	0.3
30–39	18	708	2.5
40–49	43	708	6.1
50–59	138	708	19.5
60–69	234	708	33.1
70–79	189	708	26.7
80–89	75	708	10.6
90 and older	9	708	1.3
Age at diagnosisa
20–29	10	687	1.5
30–39	28	687	4.1
40–49	70	687	10.2
50–59	160	687	23.3
60–69	210	687	30.6
70–79	158	687	23.0
80–89	47	687	6.8
90 and older	4	687	0.6
Testing history
Prior BRCA1/2 testing	223	708	31.5
Clinical Historya
Family history male breast cancer	41	643	6.4
Multiple primary breast cancers	28	706	4.0
Additional non-breast primary cancers	166	708	23.4

^aAge at diagnosis and clinical history were not provided for all men in the cohort