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PCOS, coronary heart disease, stroke and the influence of obesity: A systematic review and meta-analysis

de Groot, P. C. M.; Dekkers, O. M.; Romijn, J. A.; Dieben, S. W. M.; Helmerhorst, F. M.


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{
  "description": "background: Patients with polycystic ovary syndrome (PCOS) are at risk of arterial disease. We examined the risk of (non)fatal coronary\nheart disease (CHD) or stroke in patients with PCOS and ovulatory women without PCOS, and assessed whether obesity might\nexplain a higher risk of CHD or stroke.\nmethods: We performed a systematic review and meta-analysis of controlled observational studies. Four definitions of PCOS were\nconsidered: World Health Organization type II anovulation, National Institutes of Health criteria, Rotterdam consensus and Androgenexcess\ncriteria. Obesity was defined as BMI . 30 kg/m2 and/or waist circumference .88 cm. Study quality was assessed using the\nNewcastle\u2013Ottawa Scale. Primary outcome was fatal/non-fatal CHD or stroke. Definitions of CHD and stroke were based on criteria\nused by the various authors. The effect measure was the pooled relative risk in a random effects model. Risk ratios and rate ratios were\ncombined here.\nresults: After identifying 1340 articles, 5 follow-up studies published between 2000 and 2008 were included. The studies showed heterogeneity\nin design, definitions and quality. In a random effects model the relative risk for CHD or stroke were 2.02 comparing women with\nPCOS to women without PCOS (95% confidence interval 1.47, 2.76). Pooling the two studies with risk estimates adjusted for BMI showed a\nrelative risk of 1.55 (1.27, 1.89).\nconclusions: This meta-analysis showed a 2-fold risk of arterial disease for patients with PCOS relative to women without PCOS. BMI\nadjustment did not affect this finding, suggesting the increased risk for cardiovascular events in PCOS is not completely related to a higher BMI\nin patients with PCOS.", 
  "license": "", 
  "creator": [
    {
      "@type": "Person", 
      "name": "de Groot, P. C. M."
    }, 
    {
      "@type": "Person", 
      "name": "Dekkers, O. M."
    }, 
    {
      "@type": "Person", 
      "name": "Romijn, J. A."
    }, 
    {
      "@type": "Person", 
      "name": "Dieben, S. W. M."
    }, 
    {
      "@type": "Person", 
      "name": "Helmerhorst, F. M."
    }
  ], 
  "headline": "PCOS, coronary heart disease, stroke and the influence of obesity: A systematic review and meta-analysis", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2011-02-01", 
  "url": "https://zenodo.org/record/895980", 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.1093/humupd/dmr001", 
  "@id": "https://doi.org/10.1093/humupd/dmr001", 
  "@type": "ScholarlyArticle", 
  "name": "PCOS, coronary heart disease, stroke and the influence of obesity: A systematic review and meta-analysis"
}
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