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The relationship between education level and mammographic density.

Joohon Sung1, Yun-Mi Song

  • 1aDepartment of Epidemiology, School of Public Health bInstitute of Health Environment, Seoul National University cDepartment of Family Medicine, Samsung Medical Center and Center for Clinical Research, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, South Korea.

European Journal of Cancer Prevention : the Official Journal of the European Cancer Prevention Organisation (ECP)
|January 9, 2015
PubMed
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Higher education levels are linked to less nondense breast tissue, particularly in premenopausal women. This suggests socioeconomic factors influence breast fat composition.

Area of Science:

  • Radiology
  • Public Health
  • Biostatistics

Background:

  • Mammographic density varies significantly between individuals.
  • Understanding factors influencing mammographic density is crucial for breast cancer risk assessment.
  • Socioeconomic status, indicated by education level, may play a role.

Purpose of the Study:

  • To investigate the association between education level and mammographic density components.
  • To explore how socioeconomic status relates to breast tissue composition.

Main Methods:

  • Analysis of digital mammograms from 535 women aged 40-65.
  • Computer-assisted measurement of mammographic density, adjusted for Body Mass Index (BMI).
  • Linear mixed models used to account for familial correlations.

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Main Results:

  • A decrease in BMI-adjusted nondense breast area was observed with increasing education level (P=0.017).
  • This association remained significant after adjusting for menstrual and reproductive factors.
  • The inverse association was more pronounced in premenopausal women.

Conclusions:

  • Education level, as a marker of socioeconomic status, is inversely associated with nondense breast area.
  • Socioeconomic factors may influence the amount of fat tissue in the breast.
  • Further research is needed to elucidate the mechanisms behind this association.