Evidence map›Paper›PMID 42421403›Full record

ArticleJournal of clinical neurology (Seoul, Korea)2026

Role of Physical Activity in Protecting Against Dementia According to Menopausal Status.

Eun Ye Lim, Kyungdo Han, A-Hyun Cho

Abstract read
In one paragraph

Article in Journal of clinical neurology (Seoul, Korea), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Eun Ye LimDepartment of Neurology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.ORCID https://orcid.org/0000-0002-4972-7070
Kyungdo HanDepartment of Statistics and Actuarial Science, Soongsil University, Seoul, Korea. hkd917@naver.com.ORCID https://orcid.org/0000-0002-9622-0643
A-Hyun ChoDepartment of Neurology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. ahyun@catholic.ac.kr.ORCID https://orcid.org/0000-0003-2506-0408

Funding

Seoul St. Mary's Hospital, Catholic University of Korea SC21ZISE0149
6 · The paper itself

Abstract

background and purposeThis study evaluated the impact of physical activity on dementia risk in females while considering their menopausal status and body mass index (BMI) as potential modifiers.

methodsThis population-based retrospective cohort study utilized the Korean National Health Insurance Service database, and stratified 2,163,842 females aged ≥40 years who underwent health examinations in 2009 into pre- and postmenopausal groups. Cox proportional-hazards models were used to estimate the adjusted hazard ratios (aHRs) for all-cause dementia, Alzheimer's dementia (AD), and vascular dementia (VaD) according to physical activity levels. Interaction terms were used to assess effect modification by BMI.

resultsRegular physical activity was associated with a reduced risk of all-cause dementia and AD, but not VaD in premenopausal females (aHR=0.830, 95% confidence interval [CI]=0.739-0.931) and a reduced risk of all-cause dementia, AD, and VaD in postmenopausal females (e.g., aHR=0.884, 95% CI=0.868-0.900). The association between physical activity and dementia risk was largely consistent across BMI categories. However, a modest interaction was observed for light physical activity (LPA) (

conclusionsPhysical activity is associated with a lower risk of dementia in both pre- and postmenopausal females. Among postmenopausal females, even LPA such as walking may confer protective benefits, particularly in those with higher BMIs.

Indexed as

body mass indexdementiamenopausephysical activity

Identifiers

PMID42421403
PMCPMC13364532

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