Evidence map›Paper›PMID 34727740›Full record

ArticleStroke2022

Low Blood Pressure, Comorbidities, and Ischemic Stroke Mortality in US Veterans.

Hugo J Aparicio, Laura M Tarko, David Gagnon, Lauren Costa, Ashley Galloway, Serkalem Demissie, Luc Djousse, Sudha Seshadri, Kelly Cho, Peter W F Wilson

Open access · bronzeAbstract read
In one paragraph

Article in Stroke, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 34% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
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

10 authors at 4 institutions in 1 country.

Hugo J AparicioMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System (H.J.A., L.M.T., D.G., L.C., A.G., S.D., L.D., S.S., K.C.).ORCID 0000-0001-8584-1455
Laura M TarkoMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System (H.J.A., L.M.T., D.G., L.C., A.G., S.D., L.D., S.S., K.C.).
David GagnonMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System (H.J.A., L.M.T., D.G., L.C., A.G., S.D., L.D., S.S., K.C.).ORCID 0000-0002-6367-3179
Lauren CostaMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System (H.J.A., L.M.T., D.G., L.C., A.G., S.D., L.D., S.S., K.C.).
Ashley GallowayMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System (H.J.A., L.M.T., D.G., L.C., A.G., S.D., L.D., S.S., K.C.).
Serkalem DemissieMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System (H.J.A., L.M.T., D.G., L.C., A.G., S.D., L.D., S.S., K.C.).
Luc DjousseMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System (H.J.A., L.M.T., D.G., L.C., A.G., S.D., L.D., S.S., K.C.).ORCID 0000-0002-9902-3047
Sudha SeshadriMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System (H.J.A., L.M.T., D.G., L.C., A.G., S.D., L.D., S.S., K.C.).
Kelly ChoMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System (H.J.A., L.M.T., D.G., L.C., A.G., S.D., L.D., S.S., K.C.).
Peter W F WilsonAtlanta VA Medical Center, GA (P.W.F.W.).ORCID 0000-0002-5653-7056
Boston University · USVA Boston Healthcare System · USBrigham and Women's Hospital · USEmory University · US

Funding

UC Davis Alzheimer's Disease Core CenterP30AG010129 · NIA · UNIVERSITY OF CALIFORNIA DAVIS · PI DECARLI, CHARLES · 1991 to 2020
$28.3M
South Texas Alzheimer's Disease Research CenterP30AG066546 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Mohamad Habes · 2021 to 2026
$24.0M
PRECURSORS OF STROKE INCIDENCE AND PROGNOSISR01NS017950 · NINDS · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Hugo Javier Aparicio, Jose Rafael Romero · 1985 to 2026
$22.9M
Temporal Trends, Novel Imaging and Molecular Characterization of Preclinical and Clinical Alzheimer's Disease in the Framingham CohortsR01AG054076 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI DECARLI, CHARLES, SESHADRI, SUDHA · 2016 to 2020
$12.3M
Prediction of CVD Risk in VeteransI01CX001025 · VA · VETERANS HEALTH ADMINISTRATION · PI CHO, KELLY, WILSON, PETER WYMAN · 2014 to 2025
–
CSRD VA I01 CX001025NIA NIH HHS P30 AG010129NIA NIH HHS P30 AG066546NIA NIH HHS R01 AG054076NINDS NIH HHS L30 NS093634NINDS NIH HHS R01 NS017950
6 · The paper itself

Abstract

background and purposeLow blood pressure (BP) is associated with higher stroke mortality, although the factors underlying this association have not been fully explored. We investigated prestroke BP and long-term mortality after ischemic stroke in a national sample of US veterans.

methodsUsing a retrospective cohort study design of veterans hospitalized between 2002 and 2007 with a first ischemic stroke and with ≥1 outpatient BP measurements 1 to 18 months before admission, we defined 6 categories each of average prestroke systolic BP (SBP) and diastolic BP, and 7 categories of pulse pressure. Patients were followed-up to 12 years for primary outcomes of all-cause and cardiovascular mortality. We used Cox models to relate prestroke BP indices to mortality and stratified analyses by the presence of preexisting comorbidities (smoking, myocardial infarction, heart failure, atrial fibrillation/flutter, cancer, and dementia), race and ethnicity.

resultsOf 29 690 eligible veterans with stroke (mean±SD age 67±12 years, 98% men, 67% White), 2989 (10%) had average prestroke SBP<120 mm Hg. During a follow-up of 4.1±3.3 years, patients with SBP<120 mm Hg experienced 61% all-cause and 27% cardiovascular mortality. In multivariable analyses, patients with the lowest SBP, lowest diastolic BP, and highest pulse pressure had the highest mortality risk: SBP<120 versus 130 to 139 mm Hg (hazard ratio=1.26 [95% CI, 1.19-1.34]); diastolic BP <60 versus 70 to 79 mm Hg (hazard ratio=1.35 [95% CI, 1.23-1.49]); and pulse pressure ≥90 versus 60 to 69 mm Hg (hazard ratio=1.24 [95% CI, 1.15-1.35]). Patients with average SBP<120 mm Hg and at least one comorbidity (smoking, heart disease, cancer, or dementia) had the highest mortality risk (hazard ratio=1.45 [95% CI, 1.37-1.53]).

conclusionsCompared with normotension, low prestroke BP was associated with mortality after stroke, particularly among patients with at least one comorbidity.

Indexed as

HypotensionIschemic StrokeVeteransAgedComorbidityFemaleHumansMaleMiddle AgedRetrospective StudiesUnited Statesblood pressurecerebrovascular disordersepidemiologyhypertensionmortality

Identifiers

PMID34727740
PMCPMC8885902
OpenAlexW3210918188

What OpenQuestion holds

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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.