Evidence map›Paper›PMID 30076114›Full record

ArticleJournal of stroke and cerebrovascular diseases : the official journal of National Stroke Association2018

Differential Impact of Index Stroke on Dementia Risk in African-Americans Compared to Whites.

D G Clark, A D Boan, C Sims-Robinson, R J Adams, E J Amella, A Benitez, D T Lackland, B Ovbiagele

Registry-linked trialOpen access · greenAbstract readComparative Study
In one paragraph

Article in Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06615973 (Understanding Stroke Outcomes), which is not on this map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.3field-weighted citation impact, top 19% 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.

NCT06615973 recruitingnot on this mapstarted 2026, after this paper: background citation

Understanding Stroke Outcomes: Stroke Resilience, Infarct Burden, and Long-Term Cognition

TypeobservationalSponsorNational Institute of Neurological Disorders and Stroke (NINDS)Ran2026 to 2027Enrolled450ConditionsStroke, Brain Disease, Vascular Diseases, Cerebrovascular Disorder
3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 27 citations in OpenAlex.

  1. The role of polygenic risk in Alzheimer's disease prediction for African Americans.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Observational
  2. Article
  3. ARTS is associated with vascular risk factors, MCI, dementia, and stroke.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  4. Racial and Ethnic Disparities in Stroke Incidence and Outcomes.Current cardiovascular risk reports · 2025
    Article
  5. Cerebral arteriolosclerosis, lacunar infarcts, and cognition in older Black adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  6. Review
  7. Article
  8. Intersectionality in Alzheimer's Disease: The Role of Female Sex and Black American Race in the Development and Prevalence of Alzheimer's Disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Verbal fluency response times predict incident cognitive impairment.Alzheimer's & dementia (Amsterdam, Netherlands) · 2022
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. 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

8 authors at 1 institution in 1 country.

D G ClarkDepartment of Neurology, Medical University of South Carolina, Charleston, South Carolina; Department of Neurology, Ralph H. Johnson VA Medical Center, Charleston, South Carolina. Electronic address: clarkda@musc.edu.
A D BoanDepartment of Neurology, Medical University of South Carolina, Charleston, South Carolina; Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina.
C Sims-RobinsonDepartment of Neurology, Medical University of South Carolina, Charleston, South Carolina.
R J AdamsDepartment of Neurology, Medical University of South Carolina, Charleston, South Carolina.
E J AmellaCollege of Nursing, Medical University of South Carolina, Charleston, South Carolina.
A BenitezDepartment of Neurology, Medical University of South Carolina, Charleston, South Carolina.
D T LacklandDepartment of Neurology, Medical University of South Carolina, Charleston, South Carolina.
B OvbiageleDepartment of Neurology, Medical University of South Carolina, Charleston, South Carolina.
Medical University of South Carolina · US

Funding

Treating Depression and Enhancing Locomotor Recovery Post-strokeP20GM109040 · NIGMS · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI KAUTZ, STEVEN A. · 2014 to 2024
$23.5M
NIGMS NIH HHS P20 GM109040
6 · The paper itself

Abstract

objectiveTo compare whites and African-Americans in terms of dementia risk following index stroke.

methodsThe data consisted of billing and International Classification of Diseases, Ninth Revision diagnosis codes from the South Carolina Revenue and Fiscal Affairs office on all hospital discharges within the state between 2000 and 2012. The sample consisted of 68,758 individuals with a diagnosis of ischemic stroke prior to 2010 (49,262 white [71.65%] and 19,496 African-Americans [28.35%]). We identified individuals in the dataset who were subsequently diagnosed with any of 5 categories of dementia and evaluated time to dementia diagnosis in Cox Proportional Hazards models. We plotted cumulative hazard curves to illustrate the effect of race on dementia risk after controlling for age, sex, and occurrence of intervening stroke.

resultsAge at index stroke was significantly different between the 2 groups, with African-Americans being younger on average (70.0 [SD 12.5] in whites versus 64.5 [SD 14.1] in African-Americans, P < .0001). Adjusted hazard ratios revealed that African-American race increased risk for all 5 categories of dementia following incident stroke, ranging from 1.37 for AD to 1.95 for vascular dementia. Age, female sex, and intervening stroke likewise increased risk for dementia.

conclusionsAfrican-Americans are at higher risk for dementia than whites within 5 years of ischemic stroke, regardless of dementia subtype. Incident strokes may have a greater likelihood of precipitating dementia in African-Americans due to higher prevalence of nonstroke cerebrovascular disease or other metabolic or vascular factors that contribute to cognitive impairment.

Indexed as

Black or African AmericanHealth Status DisparitiesWhite PeopleAgedAged, 80 and overAge FactorsCognition DisordersDatabases, FactualDementiaFemaleHumansIncidenceMaleMiddle AgedPrevalencePrognosisAlzheimer's diseasedementiaMCI (mild cognitive impairment)strokesurvival analysis

Identifiers

PMID30076114
PMCPMC7282732
OpenAlexW2887648509

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.