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Metabolic syndrome is associated with breast cancer mortality : A systematic review and meta-analysis

Harborg, Sixten ; Larsen, Helene Borup ; Elsgaard, Stine and Borgquist, Signe LU (2025) In Journal of Internal Medicine 297(3). p.262-275
Abstract

Background: This systematic review and meta-analysis assesses the association between metabolic syndrome and breast cancer (BC) outcomes in BC survivors. Methods: Systematic searches were carried out in PubMed and Embase using variations of the search terms: breast neoplasms (population), metabolic syndrome (exposure), and survival (outcome). Metabolic syndrome was characterized according to the American Heart Association, which includes the presence of three out of five abnormal findings among the risk factors: high blood pressure, high triglycerides, low high-density lipoprotein, high fasting glucose, and central obesity. Data were obtained from observational studies and randomized controlled trials that utilized survival statistics... (More)

Background: This systematic review and meta-analysis assesses the association between metabolic syndrome and breast cancer (BC) outcomes in BC survivors. Methods: Systematic searches were carried out in PubMed and Embase using variations of the search terms: breast neoplasms (population), metabolic syndrome (exposure), and survival (outcome). Metabolic syndrome was characterized according to the American Heart Association, which includes the presence of three out of five abnormal findings among the risk factors: high blood pressure, high triglycerides, low high-density lipoprotein, high fasting glucose, and central obesity. Data were obtained from observational studies and randomized controlled trials that utilized survival statistics and reported survival ratios to investigate how the presence of metabolic syndrome at the time of BC diagnosis is associated with BC outcomes. Study data were independently extracted by two authors, and effect sizes were pooled using random-effects models. Results: From the 1019 studies identified in the literature search, 17 were deemed eligible. These encompassed 42,135 BC survivors. The pooled estimates revealed that BC survivors who had metabolic syndrome at the time of their BC diagnosis experienced increased risk of recurrence (HR 1.69, 95% CI: 1.39–2.06), BC mortality (HR 1.83, 95% CI: 1.35–2.49), and shorter disease-free survival (HR 1.57, 95% CI: 1.36–1.81) compared to BC survivors without metabolic syndrome. Conclusions: Among BC survivors, metabolic syndrome was associated with inferior BC outcomes. This necessitates the creation of clinical guidelines that include metabolic screening for BC survivors. Further research should identify effective interventions to reduce the prevalence of metabolic syndrome among BC survivors to improve metabolic health and BC outcomes.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
breast neoplasms, meta-analysis, metabolic syndrome, mortality, recurrence, review
in
Journal of Internal Medicine
volume
297
issue
3
pages
14 pages
publisher
Wiley-Blackwell
external identifiers
  • scopus:85214515214
  • pmid:39775978
ISSN
0954-6820
DOI
10.1111/joim.20052
language
English
LU publication?
yes
id
9cd984ca-6b33-4f12-ba45-937e82c29ef5
date added to LUP
2025-03-25 14:41:26
date last changed
2025-07-16 06:42:09
@article{9cd984ca-6b33-4f12-ba45-937e82c29ef5,
  abstract     = {{<p>Background: This systematic review and meta-analysis assesses the association between metabolic syndrome and breast cancer (BC) outcomes in BC survivors. Methods: Systematic searches were carried out in PubMed and Embase using variations of the search terms: breast neoplasms (population), metabolic syndrome (exposure), and survival (outcome). Metabolic syndrome was characterized according to the American Heart Association, which includes the presence of three out of five abnormal findings among the risk factors: high blood pressure, high triglycerides, low high-density lipoprotein, high fasting glucose, and central obesity. Data were obtained from observational studies and randomized controlled trials that utilized survival statistics and reported survival ratios to investigate how the presence of metabolic syndrome at the time of BC diagnosis is associated with BC outcomes. Study data were independently extracted by two authors, and effect sizes were pooled using random-effects models. Results: From the 1019 studies identified in the literature search, 17 were deemed eligible. These encompassed 42,135 BC survivors. The pooled estimates revealed that BC survivors who had metabolic syndrome at the time of their BC diagnosis experienced increased risk of recurrence (HR 1.69, 95% CI: 1.39–2.06), BC mortality (HR 1.83, 95% CI: 1.35–2.49), and shorter disease-free survival (HR 1.57, 95% CI: 1.36–1.81) compared to BC survivors without metabolic syndrome. Conclusions: Among BC survivors, metabolic syndrome was associated with inferior BC outcomes. This necessitates the creation of clinical guidelines that include metabolic screening for BC survivors. Further research should identify effective interventions to reduce the prevalence of metabolic syndrome among BC survivors to improve metabolic health and BC outcomes.</p>}},
  author       = {{Harborg, Sixten and Larsen, Helene Borup and Elsgaard, Stine and Borgquist, Signe}},
  issn         = {{0954-6820}},
  keywords     = {{breast neoplasms; meta-analysis; metabolic syndrome; mortality; recurrence; review}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{262--275}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Journal of Internal Medicine}},
  title        = {{Metabolic syndrome is associated with breast cancer mortality : A systematic review and meta-analysis}},
  url          = {{http://dx.doi.org/10.1111/joim.20052}},
  doi          = {{10.1111/joim.20052}},
  volume       = {{297}},
  year         = {{2025}},
}