The distribution of breast density in women aged 18 years and older.
Breast Cancer Res Treat
; 205(3): 521-531, 2024 Jun.
Article
en En
| MEDLINE
| ID: mdl-38498102
ABSTRACT
PURPOSE:
Age and body mass index (BMI) are critical considerations when assessing individual breast cancer risk, particularly for women with dense breasts. However, age- and BMI-standardized estimates of breast density are not available for screen-aged women, and little is known about the distribution of breast density in women aged < 40. This cross-sectional study uses three different modalities optical breast spectroscopy (OBS), dual-energy X-ray absorptiometry (DXA), and mammography, to describe the distributions of breast density across categories of age and BMI.METHODS:
Breast density measures were estimated for 1,961 Australian women aged 18-97 years using OBS (%water and %water + %collagen). Of these, 935 women had DXA measures (percent and absolute fibroglandular dense volume, %FGV and FGV, respectively) and 354 had conventional mammographic measures (percent and absolute dense area). The distributions for each breast density measure were described across categories of age and BMI.RESULTS:
The mean age was 38 years (standard deviation = 15). Median breast density measures decreased with age and BMI for all three modalities, except for DXA-FGV, which increased with BMI and decreased after age 30. The variation in breast density measures was largest for younger women and decreased with increasing age and BMI.CONCLUSION:
This unique study describes the distribution of breast density measures for women aged 18-97 using alternative and conventional modalities of measurement. While this study is the largest of its kind, larger sample sizes are needed to provide clinically useful age-standardized measures to identify women with high breast density for their age or BMI.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias de la Mama
/
Mamografía
/
Absorciometría de Fotón
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Índice de Masa Corporal
/
Densidad de la Mama
Límite:
Adolescent
/
Adult
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Aged
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Aged80
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Female
/
Humans
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Middle aged
País/Región como asunto:
Oceania
Idioma:
En
Revista:
Breast Cancer Res Treat
Año:
2024
Tipo del documento:
Article
País de afiliación:
Australia