Evidence map›Paper›PMID 36941727›Full record

ArticleAlzheimer's research & therapy2023

Blood pressure and dementia risk by physical frailty in the elderly: a nationwide cohort study.

Mi Hee Cho, Kyungdo Han, Seungwoo Lee, Su-Min Jeong, Jung Eun Yoo, SangYun Kim, Jinkook Lee, Sohyun Chun, Dong Wook Shin

Open access · goldFull text read
In one paragraph

Article in Alzheimer's research & therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.8field-weighted citation impact, top 16% of its field
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

5 citing papers in PubMed, 8 citations in OpenAlex.

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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

9 authors at 8 institutions in 2 countries.

Mi Hee ChoSamsung C&T Medical Clinic, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Kyungdo HanDepartment of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea.
Seungwoo LeeDepartment of Medical Statistics, College of Medicine, Catholic University of Korea, Seoul, Republic of Korea.
Su-Min JeongDepartment of Medicine, Seoul National University College of Medicine, Seoul , Republic of Korea.
Jung Eun YooDepartment of Family Medicine, Health System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea.
SangYun KimDepartment of Neurology, Seoul National University Bundang Hospital & Seoul National University College of Medicine, Seongnam, Republic of Korea.
Jinkook LeeDepartment of Economics & Center for Economic & Social Research, University of Southern California, Los Angeles, CA, USA.
Sohyun ChunInternational Healthcare Center, Samsung Medical Center, 81 Irwon-Ro, Gangnam-Gu, Seoul, Republic of Korea. sohyun.chun@gmail.com.
Dong Wook ShinDepartment of Family Medicine/Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. dwshin.md@gmail.com.
Samsung Medical Center · KRCatholic University of Korea · KRKangbuk Samsung Hospital · KRSeoul National University · KRSeoul National University Bundang Hospital · KRSeoul National University Hospital · KRSoongsil University · KRUniversity of Southern California · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMidlife hypertension has been recognized as a modifiable risk factor for dementia, but association between blood pressure (BP) in late life and dementia has been inconclusive. In addition, few studies have investigated effects of BP control on dementia incidence in the frail elderly. Thus, this study aimed to investigate the association of BP and dementia incidence with concomitant consideration of physical frailty in the young elderly population.

methodsUsing the Korean National Health Information Database, we identified 804,024 subjects without history of dementia at age 66. Dementia diagnosis was defined with prescription records of anti-dementia drugs and dementia-related diagnostic codes. Physical frailty was measured using the Timed Up and Go test. Association of BP and dementia incidence with concomitant consideration of physical frailty was investigated using Cox hazards analyses.

resultsThe risks of Alzheimer's and vascular dementia increased from systolic BP ≥ 160 and 130-139 mmHg, respectively; a significant association of dementia incidence with low BP was not observed. In the analyses stratified by the physical frailty status, low BP was not associated with increased risks of dementia within the groups both with and without physical frailty.

conclusionsHigh BP was associated with increased risks of dementia, especially for vascular dementia, while low BP was not associated with increased risks of any type of dementia in young elderly people, even in those with physical frailty. This study suggests the need for tight BP control in young elderly people, irrespective of frailty status, to prevent dementia and supports the current clinical guidelines of hypertension treatment.

Indexed as

Blood PressureDementia, VascularDisease SusceptibilityFrailtyHypertensionAgedCohort StudiesFemaleFrail ElderlyHumansMaleRisk FactorsBlood pressureDementiaElderly populationPhysical frailtyTimed up and Go

Identifiers

PMID36941727
PMCPMC10026431
OpenAlexW4327974840

What OpenQuestion holds

Textfull text, public
LicenceCC BY
measurements read27
Read underepoch 390

Registered trials

None linked

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.