Table 1.

Distribution of breast parenchymal tissue patterns (I–V)

MPP (I–V)	Number of Aboriginal and Torres Strait women	% of total Aboriginal and Torres Strait women per pattern	% Tabár study results18
Pattern I – scattered fibroglandular densities (average density)	120	13	23.9
Pattern II – predominantly adipose tissue (low density)	229	42.1	45.6
Pattern III – predominantly adipose tissue (low density)	52	26.9	10.4
Pattern IV – heterogeneously dense (high density)	80	12	15.9
Pattern V – extremely dense (very high density)	21	6	4.2
Total	502	100.0	100.0

MPP, mammographic parenchymal patterns.