The Relationship of Pre and Early Postnatal Risk Factors with Breast Cancer

Background Studies of women of European ancestry have shown that the average familial relative risk for first-degree relatives of women with breast cancer is approximately twofold, but little is known for Asian women. We aimed to provide evidence for the association between family history and breast cancer risk for Asian women by systematically reviewing published literature. Methods Studies reporting the familial relative risk of breast cancer for Asian women were searched in three online databases and complemented by a manual search. Odds ratios (ORs) for the association between family history and breast cancer risk were pooled across all included studies and by subgroups in terms of the type of family history, age, menopausal status and geographical region. Results The pooled OR for women who have a first-degree relative with breast cancer was 2.46 (95% confidence interval [CI]: 2.03, 2.97). There was no evidence that the familial risk differed by the type of affected relative (mother versus sisters), the woman’s age (< 50 years versus ≥ 50 years), menopausal status (pre versus post) and geographical region (East and Southeast Asia versus other regions) (all P > 0.3). The pooled ORs for women of Asian ancestry with a family history in any relative were similar for those living in non-Asian countries (2.26, 95% CI: 1.42, 3.59) compared with those living in Asian countries (2.18, 95% CI: 1.85, 2.58). Conclusions Family history of breast cancer is associated with an approximately twofold relative risk of breast cancer for Asian women, which is of similar magnitude to that observed for women of European ancestry. This implies that similar familial factors are implicated in breast cancer risk between women of European and Asian ancestries. Genetic factors are likely to play a substantial role in explaining the breast cancer familial risk for Asian women, as similar risks were observed across different living environments and cultures.

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Family history and breast cancer risk for Asian women: a systematic review and meta-analysis

Wang

MacInnis

2023

BMC Med

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Can paternal environmental experiences affect the breast cancer risk in offspring? A systematic review

Bagher Hosseini,

Moosapour,

Fakhar

et al. 2023

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INTRODUCTION: Studies in recent years have shown that parental environmental experiences can affect their offspring’s risk of breast cancer (BC). We assessed the effect of different paternal factors on BC risk in offspring by reviewing the existing literature. METHOD: This systematic review followed the Joanna Briggs Institute’s (JBI) method for systematic reviews of qualitative evidence. The primary keywords were searched in reliable databases such as PubMed, Google Scholar, Elsevier, SID, and Wiley in English until 31 December 2021. Two authors independently examined the articles in terms of inclusion criteria and quality assessment of the articles. RESULTS: Of the 438 studies, 19 met the inclusion criteria of this systematic review and were included in the study. Paternal factors investigated in these studies included age at delivery, diet, occupational exposures, occupation type and education. The reported relationships between these factors and breast cancer varied among different studies. CONCLUSION: Studies considered in this article show that fathers’ age at the time of delivery of the child, dietary habits, overweight and occupational factors can affect the incidence of BC risk in the next generation.

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The Relationship of Pre and Early Postnatal Risk Factors with Breast Cancer

Abstract: Iranian women with the Age Specific Rate (ASR) of 30/100,000 normal population worldwide with different incidence. It is the fifth cause of death due to malignancy.

Cited by 2 publications

References 19 publications

Family history and breast cancer risk for Asian women: a systematic review and meta-analysis

Family history and breast cancer risk for Asian women: a systematic review and meta-analysis

Can paternal environmental experiences affect the breast cancer risk in offspring? A systematic review

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