Sex-specific associations between type 2 diabetes incidence and exposure to dioxin and dioxin-like pollutants: a meta-analysis
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Meta-analysis of dioxin exposure and diabetes risk by sex; it notes how often studies stratify by sex, but the knowledge produced is about an exposure-disease association.
This meta-analysis answers a substantive epidemiological question about pollutants and diabetes rather than studying evidence synthesis methods.
Meta-analysis answering whether dioxin exposure associates with diabetes by sex; synthesis used for a health question.
Résumé
Abstract The relationship between persistent organic pollutants (POPs), including dioxins and dioxin-like polychlorinated biphenyls (DL-PCBs), and diabetes incidence in adults has been extensively studied. However, significant variability exists in the reported associations both between and within studies. Emerging data from rodent studies suggest that dioxin exposure disrupts glucose homeostasis in a sex-specific manner. Thus, we performed a meta-analysis of relevant epidemiological studies to investigate whether there are sex-specific associations between dioxin or DL-PCB exposure and type 2 diabetes incidence. Articles were organized into the following subcategories: data stratified by sex (16%), unstratified data (56%), and data from only 1 sex (16% male, 12% female). We also considered whether exposure occurred either abruptly at high levels through a contamination event (“disaster exposure”) or chronically at background levels (“non-disaster exposure”). Only 8 studies compared associations between dioxin/DL-PCB exposure and diabetes risk in males versus females within the same population. When all sex-stratified or single sex studies were considered in the meta-analysis, the summary odds ratio (OR) for increased diabetes risk was similar between females and males (1.78 and 1.95, respectively) when comparing exposed to reference populations, suggesting that this relationship is not sex-specific. However, when we considered disaster-exposed populations separately, the association differed substantially between sexes, with females showing a much higher OR than males (2.86 and 1.59, respectively). Moreover, the association between dioxin/DL-PCB exposure and diabetes was stronger for females than males in disaster-exposed populations. In contrast, both sexes had significantly increased ORs in non-disaster exposure populations and the OR for females was lower than males (1.40 and 2.02, respectively). Our review emphasizes the importance of considering sex differences, as well as the mode of pollutant exposure, when exploring the relationship between pollutant exposure and diabetes in epidemiological studies.
Conservé avec la notice de tri, où il sert de preuve aux étiquettes ci-dessus.
La notice
- Revue
- medRxiv
- Thématique
- Toxic Organic Pollutants Impact
- Domaine
- Environmental Science
- Établissements canadiens
- Carleton University
- Organismes subventionnaires
- Canadian Institutes of Health Research
- Mots-clés
- Type 2 diabetesDiabetes mellitusIncidence (geometry)Odds ratioPopulationEpidemiologyMedicineMeta-analysisEnvironmental healthPhysiologyDemographyInternal medicineEndocrinology
- Résumé présent dans OpenAlex
- oui