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Title
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Birth size and cancer prognosis : a systematic review and meta-analysis
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Author
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Abstract
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| There is an established link between birth parameters and risk of adult-onset cancers. The Developmental Origins of Health and Disease concept provides potential underlying mechanisms for such associations, including intrauterine exposure to endogenous hormones (androgens and estrogens), insulin-like growth factors, etc. However, there is conflicting evidence on the association between birth parameters and the cancer mortality risk. Therefore, we aimed to review and analyse the available data on the association linking birth weight and birth length with cancer mortality. Eleven studies were identified, published until April 2019. A significant association between birth weight and theprognosisof cancer (overall) was found (relative risk, RR 1.06, 95% confidence interval, CI: 1.01, 1.11), with low heterogeneity (I-2= 27.7%). In addition, higher birth weight was associated with poorerprognosisof prostate cancer (RR 1.21, 95% CI: 1.02, 1.44). However, the association of birth weight with breast cancer mortality risk in women was not significant (RR 1.16, 95% CI: 0.93, 1.44), which might be due to high statistical heterogeneity (I-2= 67.9%). Birth length was not associated with cancer mortality risk (RR 1.0, 95% CI: 0.90-1.11). It might be inferred that birth parameters are not associated with cancer mortality as strongly as with the risk of developing cancer. Also, the association between birth parameters and cancer mortality risk is not uniform and varies according to its subtypes, and study characteristics/design. This highlights the need for further prospective studies. |
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Language
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English
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Source (journal)
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Journal of Developmental Origins of Health and Disease
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Publication
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Cambridge
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Cambridge univ press
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2020
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ISSN
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2040-1744
2040-1752
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DOI
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10.1017/S2040174419000631
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Volume/pages
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11
:4
(2020)
, p. 309-316
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Article Reference
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PII S2040174419000631
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ISI
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000546751800001
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Pubmed ID
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31647397
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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