Table 1.

Patients characteristics: number of patients across breast density and age group

Age group (yrs)	Breast density
	A	B	C	D	Sum
15–44	0	6	2	7	15
45–54	4	18	25	9	56
55–64	8	41	5	15	69
65–78	5	14	0	5	24
> 78	0	3	1	0	4
Sum	17	82	33	36	168