J Korean Acad Fam Med.  2008 Nov;29(11):831-837.

The Relationship between Body Mass Index and Mammographic Density in Korean Women

Affiliations
  • 1Department of Family Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea. hippoid@daum.net
  • 2Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.

Abstract

BACKGROUND
There have been very few studies on the relationship between obesity and dense breast as risk factors of breast cancer in Korean women. Therefore, we evaluated the relationship between BMI and mammographic density in Korean women.
METHODS
We recruited 332 women without prior history of breast cancer, breast surgery, radiotherapy, hormone replacement therapy, and family history of breast cancer who underwent screening for mammography and completed a self-administered questionnaire in one general hospital. On the basis of ACR BI-RADS breast composition, four density patterns were classified repeatedly by a radiologist.
RESULTS
The mean age, Body Mass Index (BMI), the proportion of postmenopausal women of the study population were 50.4 years, 23.2 kg/m2, and 29.8%, respectively. The proportion of extremely dense breast women was 100% in the underweight group, 77.3% in the normal weight group, 41.4% in class 1 obesity group, and 25% in class 2 obesity group, decreased with increasing BMI. The odds Ratio of BMI to extremely dense breast was 0.82 (95% CI: 0.72~0.93, P value=0.002) after adjustment for age, menache, menopause, and BI-RADS assessment category in logistic regression.
CONCLUSION
Our findings showed that the BMI was negatively correlated with mammographic density as well in Korea. Therefore, primary physicians should consider sensitive additional method for breast cancer screening especially in underweight and normal weight Korean women.

Keyword

obesity; body mass index; mammography; breast cancer; breast ultrasonography

MeSH Terms

Body Mass Index
Breast
Breast Neoplasms
Female
Hormone Replacement Therapy
Hospitals, General
Humans
Korea
Mammary Glands, Human
Mammography
Mass Screening
Menopause
Obesity
Odds Ratio
Risk Factors
Thinness
Ultrasonography, Mammary
Surveys and Questionnaires
Breast Neoplasms
Mammary Glands, Human
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