Evidence map›Paper›PMID 29508259›Full record

Observational studyJournal of general internal medicine2018

Underdiagnosis of Dementia: an Observational Study of Patterns in Diagnosis and Awareness in US Older Adults.

Halima Amjad, David L Roth, Orla C Sheehan, Constantine G Lyketsos, Jennifer L Wolff, Quincy M Samus

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in Journal of general internal medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 312 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
312citing papers in PubMed, 4 pooled it
25.7field-weighted citation impact, top 1% 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

312 citing papers in PubMed, 4 syntheses or guidelines pooled it, 478 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Palliative Care in Early Dementia.Journal of pain and symptom management · 2024
    Pooled it
  4. Pooled it
  5. Trial
  6. Trial
  7. Trial
  8. Trial
  9. Observational
  10. The value of timely treatment with anti-amyloid therapy for Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  11. Clinical Group Assignment in Home Health Care for Medicare Beneficiaries With ADRD: A 2019 Pre-PDGM Simulation.Journal of applied gerontology : the official journal of the Southern Gerontological Society · 2026
    Article
  12. Article
  13. Article
  14. Perceptions of Alzheimer's Disease Among Cognitively Healthy, Community-Dwelling Older Adults: A Metaphor Study.Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society · 2026
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

252 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Halima AmjadDivision of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, MD, USA. hamjad1@jhmi.edu.
David L RothDivision of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Orla C SheehanDivision of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Constantine G LyketsosDepartment of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Jennifer L WolffJohns Hopkins University Center on Aging and Health, Baltimore, MD, USA.
Quincy M SamusJohns Hopkins University Center on Aging and Health, Baltimore, MD, USA.
Johns Hopkins Medicine · USJohns Hopkins University · US

Funding

The National Health and Trends StudyU01AG032947 · NIA · JOHNS HOPKINS UNIVERSITY · PI VICKI A. FREEDMAN, JENNIFER ANN SCHRACK · 2008 to 2026
$169.4M
'T V ASSESSMENT - MEMORY DISORDERED PATIENTS'P50AG005146 · NIA · JOHNS HOPKINS UNIVERSITY · PI BAKKER, ARNOLD · 1985 to 2019
$37.6M
Institute for Clinical and Translational ResearchKL2TR001077 · NCATS · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2013 to 2017
$9.2M
Prognostic Significance of Family Caregiver Factors for Older Adult Health EventsR01AG047859 · NIA · JOHNS HOPKINS UNIVERSITY · PI WOLFF, JENNIFER L. · 2015 to 2018
$1.5M
NCATS NIH HHS KL2 TR001077NIA NIH HHS L30 AG057072NIA NIH HHS P50 AG005146NIA NIH HHS R01 AG047859NIA NIH HHS U01 AG032947
6 · The paper itself

Abstract

backgroundMany older adults living with dementia have not been formally diagnosed. Even when clinicians document the diagnosis, patients and families may be unaware of the diagnosis. Knowledge of how individual characteristics affect detection and awareness of dementia is limited.

objectiveTo identify characteristics associated with dementia diagnosis and awareness of diagnosis.

designCross-sectional observational study.

participantsFive hundred eighty-five adults aged ≥ 65 in the National Health and Aging Trends Study who met assessment-based study criteria for probable dementia in 2011 and had 3 years of continuous, fee-for-service Medicare claims prior to 2011. MAIN MEASURES: Using multivariable logistic regression, we compared participants with undiagnosed versus diagnosed dementia (based on Medicare claims) on demographic, social/behavioral, functional, medical, and healthcare utilization characteristics. Among those diagnosed, we compared characteristics of participants unaware versus aware of the diagnosis (based on self or proxy report). KEY

resultsAmong older adults with probable dementia, 58.7% were either undiagnosed (39.5%) or unaware of the diagnosis (19.2%). In adjusted analyses, individuals who were Hispanic (OR 2.48, 95% CI 1.19, 5.14), had less than high school education (OR 0.54 for at least high school education, 95% CI 0.32, 0.91), attended medical visits alone (OR 1.98, 95% CI 1.11, 3.51), or had fewer functional impairments (OR 0.79 for each impairment, 95% CI 0.69, 0.90) were more likely to be undiagnosed. Similarly, among those diagnosed, having less education (OR 0.42), attending medical visits alone (OR 1.97), and fewer functional impairments (OR 0.72) were associated with unawareness of diagnosis (all ps < 0.05).

conclusionsThe majority of older adults with dementia are either undiagnosed or unaware of the diagnosis, suggesting shortcomings in detection and communication of dementia. Individuals who may benefit from targeted screening include racial/ethnic minorities and persons who have lower educational attainment, any functional impairment, or attend medical visits alone.

Indexed as

AwarenessCommunicationHealth Knowledge, Attitudes, PracticeAgedAged, 80 and overCross-Sectional StudiesDementiaFemaleHumansMaleRetrospective StudiesUnited StatesAlzheimer’sDementiaDiagnosisGeriatricsVulnerable populations

Identifiers

PMID29508259
PMCPMC6025653
OpenAlexW2793736115

What OpenQuestion holds

Textmetadata
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.