Early menopause and premature ovarian insufficiency are associated with increased risk of type 2 diabetes: a systematic review and meta-analysis

in European Journal of Endocrinology
Correspondence should be addressed to P Anagnostis; Email: anagnwstis.pan@yahoo.gr
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Objective/Design

Menopausal transition has been associated with a derangement of glucose metabolism. However, it is not known if early menopause (EM, defined as age at menopause <45 years) or premature ovarian insufficiency (POI, defined as age at menopause <40 years) are associated with increased risk of type 2 diabetes mellitus (T2DM). To systematically investigate and meta-analyze the best evidence regarding the association of age at menopause with the risk of T2DM.

Methods

A comprehensive search was conducted in PubMed, CENTRAL and Scopus, up to January 31, 2018. Data are expressed as odds ratio (OR) with 95% confidence intervals (CI). The I 2 index was employed for heterogeneity.

Results

Thirteen studies were included in the qualitative and quantitative analysis (191 762 postmenopausal women, 21 664 cases with T2DM). Both women with EM and POI were at higher risk of T2DM compared with those of age at menopause of 45–55 years (OR: 1.15, 95% CI: 1.04–1.26, P = 0.003; I 2: 61%, P < 0.002 and OR: 1.50, 95% CI: 1.03–2.19, P = 0.033; I 2: 75.2%, P < 0.003), respectively). Similar associations emerged when women with EM and POI were compared with those of age at menopause >45 years (OR: 1.12, 95% CI: 1.01–1.20, P < 0.02; I 2: 78%, P < 0.001 and OR: 1.53, 95% CI: 1.03–2.27, P = 0.035; I 2: 78%, P < 0.001), respectively).

Conclusions

Both EM and POI are associated with increased risk of T2DM.

Downloadable materials

  • Supplementary table S1
  • Supplementary table S2. Study quality as assessed by the Newcastle-Ottawa scale.
  • Supplementary table S3. Full-text articles excluded from data synthesis.

 

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European Society of Endocrinology

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    Flow chart diagram.

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    Forest plot of the comparison between early menopause (EM) and menopause >45 years.

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    Forest plot of the comparison between early menopause (EM) and menopause at 45–55 years.

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    Forest plot of the comparison between premature ovarian insufficiency (POI) and menopause >45 years.

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    Forest plot of the comparison between premature ovarian insufficiency (POI) and menopause at 45–55 years.

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    Meta-regression analysis of the effect of age on the association of premature menopause with increased risk of type 2 diabetes.

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