Mammographic Breast Density Patterns in Asymptomatic Mexican Women

Table 4

Breast density in women younger and older than 50 years.

Mammographic density patterns	≤50 years		>50 years		Total
	𝑛	%	𝑛	%
Fat	44	37.6	126	68.8	170
Fibroglandular	43	36.7	44	24.0	87
Heterogeneously dense	11	9.4	6	3.3	17
Dense	19	16.2	7	3.8	26
Total	117		183		300

𝜒²=35.5, 𝑃=0.0001, gl = 9.