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Bisphenol A and the risk of cardiometabolic disorders: a systematic review with meta-analysis of the epidemiological evidence


Volume 14, Issue -, Pages -


DOI: 10.1186/s12940-015-0036-5


Bisphenol A; Cardiovascular disease; Diabetes; Epidemiology; Hyperglycemia; Hypertension; Meta-analysis; Obesity; Overweight; Systematic review


  1. National Health and Medical Research Council, Australia (NHMRC) [APP1022923]
  2. CORDDIM (Ile-de-France Regional Council Cardiovascular/Obesity/Kidney/Diabetes)
  3. French Endocrine Disruptor Research Programme (PNRPE grant)
  4. National Heart Foundation of Australia/NHMRC [586739]
  5. Cardiac Society of Australia
  6. Cardiac Society of New Zealand
  7. Victorian Government's OIS Program

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Bisphenol A (BPA) is suspected to be associated with several chronic metabolic diseases. The aim of the present study was to review the epidemiological literature on the relation between BPA exposure and the risk of cardiometabolic disorders. PubMed and Embase databases were searched up to August 2014 by two independent investigators using standardized subject terms. We included observational studies (cohort, case-control and cross-sectional studies) carried out in children or adults, measuring urinary BPA (uBPA), including at least 100 participants and published in English. The health outcomes of interest were diabetes, hyperglycemia, measures of anthropometry, cardiovascular disease (CVD) and hypertension. Data were extracted and meta-analyzed when feasible, using a random-effects model. Thirty-three studies with sample size ranging from 239 to 4811 met the inclusion criteria, including five with a prospective design. Twelve studies reported on diabetes or hyperglycemia, 16 on anthropometry, 6 on CVD and 3 on hypertension. Evidence for a positive association between uBPA concentrations and diabetes, overweight, obesity, elevated waist circumference (WC), CVD and hypertension was found in 7/8, 2/7, 6/7, 5/5, 4/5 and 2/3 of the cross-sectional studies, respectively. We were able to conduct outcome-specific meta-analyses including 12 studies. When comparing the highest vs. the lowest uBPA concentrations, the pooled ORs were 1.47 (95 % CI: 1.21-1.80) for diabetes, 1.21 (95 % CI: 0.98-1.50) for overweight, 1.67 (95 % CI: 1.41-1.98) for obesity, 1.48 (95 % CI: 1.25-1.76) for elevated WC, and 1.41 (95 % CI: 1.12-1.79) for hypertension. Moreover, among the five prospective studies, 3 reported significant findings, relating BPA exposure to incident diabetes, incident coronary artery disease, and weight gain. To conclude, there is evidence from the large body of cross-sectional studies that individuals with higher uBPA concentrations are more likely to suffer from diabetes, general/abdominal obesity and hypertension than those with lower uBPA concentrations. Given the potential importance for public health, prospective cohort studies with proper adjustment for dietary characteristics and identification of critical windows of exposure are urgently needed to further improve knowledge about potential causal links between BPA exposure and the development of chronic disease.


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