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Age and race related changes in mammographic parenchymal patterns
Author(s) -
Hart Blaine L.,
Steinbock R. Ted,
Mettler Fred A.,
Pathak Dorothy R.,
Bartow Sue A.
Publication year - 1989
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/1097-0142(19890615)63:12<2537::aid-cncr2820631230>3.0.co;2-0
Subject(s) - medicine , breast cancer , incidence (geometry) , ethnic group , parenchyma , demography , race (biology) , mammography , age groups , gynecology , cancer , pathology , biology , physics , botany , sociology , anthropology , optics
The relationship between breast parenchymal patterns and age was examined in a nonselected, nonreferred group. The three major racial‐ethnic subgroups represented have markedly different incidences of breast cancer, with Anglos (nonHispanic caucasians), Hispanics, and American Indians having higher to lower incidence rates of breast cancer, respectively. Mammograms were performed in 519 victims of nonhospital, nonnatural or unexplained deaths in New Mexico. The percentage of dense breast patterns (DY + P2) decreased with age for all groups. American Indian women showed a much earlier shift to a lower density parenchymal pattern than Anglo or Hispanic women. At older ages Indian women continued to have a slightly lower percentage of dense breast patterns than the other groups. The changes in breast parenchymal pattern with age and ethnic groups may reflect factors related to risk of breast cancer.