Breast Cancer Risk Factors According to Combined Estrogen and Progesterone Receptor Status: A Case-Control Analysis (original) (raw)

Journal Article

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1

Department of Preventive Medicine, Seoul National University College of Medicine

Seoul, Korea

Reprint requests to Dr. Keun-Young Yoo, Department of Preventive Medicine, Seoul National University College of Medicine, 28 Yongon-dong, Chongno-gu, Seoul 110–799, Korea

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2

Division of Epidemiology, Aichi Cancer Center Research Institute

Nagoya, Japan

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3

Department of Breast Surgery, Aichi Cancer Center Hospital

Nagoya, Japan

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3

Department of Breast Surgery, Aichi Cancer Center Hospital

Nagoya, Japan

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2

Division of Epidemiology, Aichi Cancer Center Research Institute

Nagoya, Japan

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Department of Epidemiology and Public Health, Yale University School of Medicine

New Haven, CT

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Formerly with the Department of Epidemiology and Public Health, Yale University School of Medicine

New Haven, CT

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Received:

10 October 1995

Published:

15 August 1997

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Keun-Young Yoo, Kazuo Tajima, Shigeto Miura, Tohru Takeuchi, Kaoru Hirose, Harvey Risch, Robert Dubrow, Breast Cancer Risk Factors According to Combined Estrogen and Progesterone Receptor Status: A Case-Control Analysis, American Journal of Epidemiology, Volume 146, Issue 4, 15 August 1997, Pages 307–314, https://doi.org/10.1093/oxfordjournals.aje.a009271
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Abstract

Breast cancers demonstrate a gradient of responsiveness to endocrine therapy according to hormone receptor status, with tumors positive for both estrogen and progesterone receptors responding most favorably. The authors hypothesized that reproductive risk factors, which are probably mediated by endogenous hormones, would also differ according to receptor status, and that tumors positive for both receptors would exhibit the highest risk. Information on risk factors was obtained from 1,154 breast cancer cases and 21,714 cancer-free controls at the Aichi Cancer Center Hospital, Nagoya, Japan between 1988 and 1992. Receptor status was known for 40% of cases. For a given risk factor, odds ratios with respect to the common control group for breast cancers of differing receptor status were compared using multiple polytomous logistic regression. Risk factors did not differ significantly according to estrogen receptor status. However, age at diagnosis/interview, occupation, age at menarche, menstrual regularity at ages 20–29 years, and cigarette smoking differed significantly or borderline significantly in effect according to progesterone receptor status. Stratification of cases according to joint estrogen and progesterone receptor status indicated that estrogen receptor status did not modify this difference in effect. This study did not support the hypothesis of a gradient of risk for reproductive factors according to hormone receptor status. The authors recommend that the finding that some risk factors differ according to progesterone receptor status should be pursued in further studies. Am J Epidemiol 1997;146:307-14.

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© 1997 by The Johns Hopkins University School of Hygiene and Public Health

Topic:

• smoking
• estrogen
• cancer
• hormones
• hormone receptors
• cancer care facilities
• menarche
• menstruation
• estrogen receptors
• receptors, progesterone
• reproductive physiological process
• reproductive history
• diagnosis
• neoplasms
• breast cancer
• endocrine therapy
• stratification
• breast cancer risk

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