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Article: A case-control study of menstrual factors in relation to breast cancer risk in African-American women
- Article from:
- Journal of the National Medical Association
- Article date:
- October 1, 2003
- Author:
CopyrightCopyright National Medical Association Oct 2003. Provided by ProQuest LLC. (Hide copyright information)
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Menstrual characteristics may serve as surrogate measures of endogenous estrogen and may be related to breast cancer risk. No previous studies have systematically investigated menstrual factors in relation to the disease in African-American women. This case-control study is aimed to assess the relationship between menstrual factors and breast cancer in African-American women. Cases were 304 African-American women, aged 20-64 living in three Tennessee counties, diagnosed with breast cancer between 1995 and 1998. Controls were selected through random-digit dialing and frequency matched to cases (n=305). Phone interviews were conducted on menstrual factors-age at menarche, time to regularity, ...