Age at menopause and duration of reproductive period in association with dementia and cognitive function: A systematic review and meta-analysis

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Georgakis, Marios K.Univ Athens, Sch Med, Dept Hyg Epidemiol & Med Stat, 75 Mikras Asias Str, Athens 11527, Greece. (author)

Age at menopause and duration of reproductive period in association with dementia and cognitive function : A systematic review and meta-analysis

Article/chapterEnglish2016

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Elsevier BV,2016
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LIBRIS-ID:oai:DiVA.org:uu-309474
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-309474URI
https://doi.org/10.1016/j.psyneuen.2016.08.003DOI

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Language:English
Summary in:English

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Subject category:for swepub-publicationtype

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Introduction: The preponderance of dementia among postmenopausal women compared with same-age men and the female sex hormones neuroprotective properties support a tentative role of their deficiency in the dementia pathogenesis. Methods: Pairs of independent reviewers screened 12,323 publications derived from a search strategy for MEDLINE to identify articles investigating the association of age at menopause/reproductive period with (i) dementia and (ii) cognitive function; a snowball of eligible articles and reviews was conducted and authors were contacted for additional information. Random-effect models were used for the meta analysis. Results: Age at menopause (13 studies; 19,449 participants) and reproductive period (4 studies; 9916 participants) in the highest categories were not associated with odds of dementia (effect size [ES]: 0.97 [0.78-1.21]) and Alzheimer's disease (ES: 1.06 [0.71-1.58]). Significant heterogeneity was however noted in both analyses (12: 63.3%, p = 0.003 and 12: 72.6%, p = 0.01, respectively). Subgroup analyses by outcome assessment, study design, level of adjustment and study quality did not materially change the findings. In 9/13 studies assessing cognitive function, advanced age at menopause/longer reproductive period was significantly associated with better cognitive performance/lower decline. Due to statistical differences, no meta-analysis was possible for cognitive function. Conclusions: Existing evidence does not support an association between indices of prolonged exposure to female hormones and lower dementia risk. There are indications, however, for better cognitive performance and delayed cognitive decline, supporting a link between female hormone deficiency and cognitive aging. Current literature limitations, indicated by the heterogeneous study-set, point towards research priorities in this clinically relevant area.

Subject headings and genre

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Endokrinologi och diabetes hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Endocrinology and Diabetes hsv//eng
MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Neurologi hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Neurology hsv//eng
Dementia
Cognitive impairment
Cognition
Menopause
Postmenopausal women
Female hormones

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Kalogirou, Eleni I.Univ Athens, Sch Med, Dept Hyg Epidemiol & Med Stat, 75 Mikras Asias Str, Athens 11527, Greece. (author)
Diamantaras, Andreas-AntoniosUniv Athens, Sch Med, Dept Hyg Epidemiol & Med Stat, 75 Mikras Asias Str, Athens 11527, Greece.;Charite, Program Med Neurosci, D-10117 Berlin, Germany. (author)
Daskalopoulou, Stella S.McGill Univ, Fac Med, Dept Med, Div Internal Med, Montreal, PQ H3G 1A4, Canada. (author)
Munro, Cynthia A.Johns Hopkins Sch Med, Dept Psychiat & Behav Sci, Baltimore, MD 21287 USA. (author)
Lyketsos, Constantine G.Johns Hopkins Sch Med, Dept Psychiat & Behav Sci, Baltimore, MD 21287 USA. (author)
Skalkidou, AlkistisUppsala universitet,Obstetrik & gynekologi(Swepub:uu)alksk607 (author)
Petridou, Eleni Th.Univ Athens, Sch Med, Dept Hyg Epidemiol & Med Stat, 75 Mikras Asias Str, Athens 11527, Greece. (author)
Univ Athens, Sch Med, Dept Hyg Epidemiol & Med Stat, 75 Mikras Asias Str, Athens 11527, Greece.Univ Athens, Sch Med, Dept Hyg Epidemiol & Med Stat, 75 Mikras Asias Str, Athens 11527, Greece.;Charite, Program Med Neurosci, D-10117 Berlin, Germany. (creator_code:org_t)

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In:Psychoneuroendocrinology: Elsevier BV73, s. 224-2430306-45301873-3360

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