ArticleThe journal of prevention of Alzheimer's disease2024
Female Reproductive Factors and Risk of Mild Cognitive Impairment and Dementia: The HUNT Study.
Article in The journal of prevention of Alzheimer's disease, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed.
- Prospective study of reproductive span and menopausal hormone therapy and cognitive decline over 8 years in the Nurses' Health Study.Menopause (New York, N.Y.) · 2026Article
- Women's reproductive life patterns, intrinsic capacity, and the risk of all-cause and cause-specific dementia: a prospective cohort study.Alzheimer's research & therapy · 2026Article
- Cognitive dysfunction in women with theJournal of Alzheimer's disease : JAD · 2026Article
- Depression Symptom Trajectories in Mothers With the FMR1 Premutation Vary by CGG Repeat Length: A Longitudinal Study of 73 Women Spanning 20-75 Years of Age.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2025Article
- Biological and social reproductive factors and late-life cognitive function in middle-aged and older Chinese women.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Phase Angle Is a Potential Novel Early Marker for Sarcopenia and Cognitive Impairment in the General Population.Journal of cachexia, sarcopenia and muscle · 2025Article
- Association between age at first birth and cognitive function in women 60 years and older: the 2011-2014 cross-sectional National Health and Nutrition Examination Survey (NHANES) study.BMC public health · 2025Article
- Observational
- Ectopic pregnancy, its potential links to dementia risk and interactions with depression: insights from a nationwide cohort study.Frontiers in psychiatry · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMore women are living with dementia than men worldwide and there is a need to investigate causes for this female preponderance. While reproductive factors have been investigated as risk factors, the results are conflicting. We aim to clarify this using a large cohort with a long observation time, adjusting for multiple health and lifestyle variables and encompassing a wider range of cognitive impairment.
objectiveTo study the association between menopause age, menarche age and risk of and risk of mild cognitive impairment (MCI) and dementia.
settingThe Trøndelag Health study (HUNT), a longitudinal population health study in Norway (1984-2019).
participantsWomen who were ≥70 years in 2017-2019 were assessed for cognitive impairment. MEASUREMENTS: Data on menopause age and menarche age were obtained from questionnaires. Diagnosis of MCI or dementia was set using a standardised procedure by a diagnostic group of nine physicians. Multinomial logistic regression was used to study the association between menopause age, menarche age and risk of MCI and dementia with adjustment for birth year, education, smoking, ApoE4, number of children, diabetes, body mass index, alcohol use and physical inactivity.
resultsWe evaluated 5314 women where 900 (16.9%) had dementia, and 1747 (32.8%) had MCI. Multiple adjusted relative risk ratio (RRR) and 95% confidence intervals (CI) for dementia were: 0.96(95%CI 0.95-0.98) (p<0.001) for menopause age, 0.97(95%CI 0.94-0.99) (p=0.007) for natural menopause age (excluding hysterectomy and/or oophorectomyp<55 years) and 0.97(95%CI 0.95-0.99) (pp<0.001) for reproductive span (menopause age minus menarche age). Menopause age p<45years was associated with a 56% higher risk compared to mean menopause age 50 years. We found no significant associations between menarche age and dementia and no associations with MCI.
conclusionsOlder menopause age and longer reproductive span corresponding to longer oestrogen exposure were associated with a lower dementia risk. Future studies should explore therapeutical options to offset this risk in women.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.