Risk factors for benign breast disease according to histopathological type: Comparisons with risk factors for breast cancer

Yuko Minami, Noriaki Ohuchi, Yoshinori Taeda, Akira Fukao, Shigeru Hisamichi

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

We evaluated risk factors for benign breast disease by using a case-control study method. The series was taken from participants in breast cancer screening programs during 1978-1986 in Miyagi Prefecture, Japan. All benign breast lesions diagnosed during this period were reviewed and reclassified into proliferative and non-proliferative types based on the Dupont and Page classification. Data on 382 benign breast disease cases (130 proliferative-type cases and 252 non-proliferative-type cases) and 1489 screening year-, age- and screening area-matched normal controls were used for analysis. Nulliparity or low parity and family history of breast cancer in mother or sisters were significantly associated with an increased risk of proliferative type. Premenopausal status was significantly associated with an increased risk of non-proliferative type. No significant association with history of lactation for the last child was observed in either type, but the risk of proliferative type increased with increasing duration of lactation (P = 0.08). A comparison between the present findings and the risk factors for breast cancer indicated epidemiologic similarities between proliferative benign and malignant breast lesions in general. The associations of these two lesions with lactation patterns were, however, dissimilar.

Original languageEnglish
Pages (from-to)116-123
Number of pages8
JournalJapanese Journal of Cancer Research
Volume89
Issue number2
DOIs
Publication statusPublished - 1998 Feb

Keywords

  • Benign breast disease
  • Breast cancer
  • Risk factors

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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