Evidence map›Paper›PMID 34663235›Full record

ArticleBMC geriatrics2021

Changes in late-life systolic blood pressure and all-cause mortality among oldest-old people in China: the chinese longitudinal healthy longevity survey.

Hui Gao, Kan Wang, Fariba Ahmadizar, Wensui Zhao, Yu Jiang, Lei Zhang, Li Yu, Fangjia Zhou, Jialing Gu, Jianlin Zhuang and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMC geriatrics, 2021. 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
0.9field-weighted citation impact, top 24% 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, 7 citations in OpenAlex.

  1. Blood pressure targets in adults with hypertension.The Cochrane database of systematic reviews · 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

11 authors at 3 institutions in 2 countries.

Hui Gao *Changning Center for Disease Control and Prevention, 39 Yunwushan Road, P.O. Box1003, 200032, Shanghai, China.
Kan Wang *Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands.
Fariba AhmadizarDepartment of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands.
Wensui ZhaoChangning Center for Disease Control and Prevention, 39 Yunwushan Road, P.O. Box1003, 200032, Shanghai, China.
Yu JiangChangning Center for Disease Control and Prevention, 39 Yunwushan Road, P.O. Box1003, 200032, Shanghai, China.
Lei ZhangChangning Center for Disease Control and Prevention, 39 Yunwushan Road, P.O. Box1003, 200032, Shanghai, China.
Li YuChangning Center for Disease Control and Prevention, 39 Yunwushan Road, P.O. Box1003, 200032, Shanghai, China.
Fangjia ZhouChangning Center for Disease Control and Prevention, 39 Yunwushan Road, P.O. Box1003, 200032, Shanghai, China.
Jialing GuChangning Center for Disease Control and Prevention, 39 Yunwushan Road, P.O. Box1003, 200032, Shanghai, China.
Jianlin ZhuangChangning Center for Disease Control and Prevention, 39 Yunwushan Road, P.O. Box1003, 200032, Shanghai, China. zhuangjianlin208@126.com.
Zhao-Lin XiaSchool of Public Health, Fudan University, Shanghai, China.
Shanghai Municipal Center For Disease Control Prevention · CNErasmus MC · NLFudan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBlood pressure targets for oldest-old people have been long debated due to the concern that more stringent targets are associated with increased mortality. We aimed to investigate the association between changes of late-life systolic blood pressure (SBP), mean SBP and SBP variability (SBPV), and all-cause mortality in oldest-old.

methodsBased on the community-based Chinese Longitudinal Healthy Longevity Survey with follow-up conducted in the 3-year interval, we assembled a retrospective cohort of 6639 participants ≥ 80 years with available blood pressure measurements at baseline and second wave. The primary exposures were mean SBP and SBPV (defined as the annual difference in SBP divided by mean SBP) measured between baseline and second wave. The primary outcome was all-cause mortality assessed from the second wave.

resultsDuring 21443.1 person-years of follow-up, 4622 death was recorded. U-shaped associations of mortality with mean SBP and SBPV were identified; the value of 137 mmHg and 4.0 %/year conferred the minimum mortality risk, respectively. The associations of a larger SBPV with an increased mortality risk were observed for both rises and large falls in SBP. The hazard ratio was 1.11 (comparing lowest versus middle quintile; 95 % CI: 1.01, 1.22) with large falls in SBPV and 1.08 (comparing highest versus middle quintile; 95 % CI: 0.98, 1.18) with large rises in SBPV.

conclusionsU-shaped associations between late-life SBP and SBPV and all-cause mortality were found. Our study suggests that a stable SBP level in the middle range is related to lower mortality risk in the oldest-old.

Indexed as

HypertensionAged, 80 and overBlood PressureChinaHumansLongitudinal StudiesProportional Hazards ModelsRetrospective StudiesRisk FactorsBlood pressureBlood pressure variationMortalityOldest-old

Identifiers

PMID34663235
PMCPMC8522233
OpenAlexW3164196353

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LicenceCC BY
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Registered trials

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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.