Evidence map›Paper›PMID 34724953›Full record

ArticleBMC medicine2021

Different hypertension thresholds and cognitive decline: a pooled analysis of three ageing cohorts.

Yanjun Ma, Rong Hua, Zhenchun Yang, Baoliang Zhong, Li Yan, Wuxiang Xie

Open access · goldAbstract read
In one paragraph

Article in BMC medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 3% 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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
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  8. The Japanese Society of Hypertension Guidelines for the management of elevated blood pressure and hypertension 2025 (JSH2025).Hypertension research : official journal of the Japanese Society of Hypertension · 2026
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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

6 authors at 5 institutions in 2 countries.

Yanjun Ma *Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China.
Rong Hua *Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China.
Zhenchun YangDepartment of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK.
Baoliang ZhongDepartment of Geriatric Psychiatry, Affiliated Wuhan Mental Health Center, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China.
Li YanNational School of Development, Peking University, Beijing, China. l.yan@pku.edu.cn.
Wuxiang XiePeking University Clinical Research Institute, Peking University First Hospital, Beijing, China. xiewuxiang@hsc.pku.edu.cn.
Peking University Shougang Hospital · CNHuazhong University of Science and Technology · CNImperial College London · GBPeking University · CNPeking University First Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe 2017 American College of Cardiology (ACC)/American Heart Association (AHA) guidelines for high blood pressure (BP) in adults came up with a new definition of hypertension with a threshold BP level of 130/80 mmHg. But the 2018 European Society of Cardiology (ESC)/European Society of Hypertension (ESH) guidelines adhered to a conventional hypertension definition as BP ≥ 140/90 mmHg. We aimed to compare the trajectories of cognitive decline between participants with BP < 130/80 mmHg in all BP measurement waves and others with all BP < 140/90 mmHg.

methodsThis pooled analysis involved middle-aged and older participants from three nationally representative ageing cohorts, including the Health and Retirement Study (HRS), the English Longitudinal Study of Ageing (ELSA), and the China Health Retirement Longitudinal Study (CHARLS). Participants were divided into the Normal (BP < 130/80 mmHg on all occasions throughout the study), the Borderline (BP < 140/90 mmHg on all occasions throughout the study but not in the Normal group), and the High (the rest of participants) BP groups. Global cognitive Z score was calculated from tests on memory, executive function, and orientation.

resultsA total of 17,590 participants (HRS 6964, median follow-ups 12 years; ELSA 5334, median follow-ups 16 years; CHARLS 5292, median follow-ups 7 years) were included. No significant difference in global cognitive decline rate was detected between the Normal and the borderline groups (men, pooled β = - 0.006 standard deviation [SD]/year; 95% confidence interval [CI], - 0.020 to 0.008; P = 0.377; women, pooled β = 0.006 SD/year; 95% CI - 0.005 to 0.018; P = 0.269). Participants in the High group had a significantly faster cognitive decline (men, pooled β = - 0.011 SD/year; 95% CI - 0.020 to - 0.002; P = 0.013; women, pooled β = - 0.017 SD/year; 95% CI - 0.026 to - 0.008; P < 0.001) than that in the Borderline group.

conclusionsIndividuals in the Borderline group did not experience significantly faster cognitive decline compared with those in the Normal group. It might not be necessary for individuals with borderline BP (between 130/80 and 140/90 mmHg) to initiate antihypertension therapy in consideration of cognitive decline.

Indexed as

Cognitive DysfunctionHypertensionAdultAgedAgingBlood PressureBlood Pressure DeterminationFemaleHumansLongitudinal StudiesMaleMiddle AgedUnited StatesBlood pressureCognitive dysfunctionHypertension

Identifiers

PMID34724953
PMCPMC8561998
OpenAlexW3209608509

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.