Evidence map›Paper›PMID 33397143›Full record

ArticlePsychiatric services (Washington, D.C.)2021

Rates of Cognitive and Functional Impairments Among Sheltered Adults Experiencing Homelessness.

Zanjbeel Mahmood, Lea Vella, Jacqueline E Maye, Amber V Keller, Ryan Van Patten, Jillian M R Clark, Elizabeth W Twamley

Abstract read
In one paragraph

Article in Psychiatric services (Washington, D.C.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. High rates of cognitive impairment in people experiencing homelessness demand radical policy change.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2026
    Article
  3. Article
  4. Article
  5. Cognitive Correlates of Resilience in Adults Experiencing Homelessness.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2025
    Article
  6. Review
  7. Article
  8. Dementia and mild cognitive impairment screening in an emergency homeless shelter.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. 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

7 authors.

Zanjbeel MahmoodSan Diego State University/University of California (UC), San Diego, Joint Doctoral Program in Clinical Psychology, San Diego (Mahmood, Vella); Research Service, U.S. Department of Veterans Affairs (VA) San Diego Healthcare System, San Diego (Mahmood, Maye, Keller, Van Patten, Clark, Twamley); Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego (Maye, Clark, Twamley); Department of Psychiatry, UC, San Diego (Van Patten, Twamley).
Lea VellaSan Diego State University/University of California (UC), San Diego, Joint Doctoral Program in Clinical Psychology, San Diego (Mahmood, Vella); Research Service, U.S. Department of Veterans Affairs (VA) San Diego Healthcare System, San Diego (Mahmood, Maye, Keller, Van Patten, Clark, Twamley); Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego (Maye, Clark, Twamley); Department of Psychiatry, UC, San Diego (Van Patten, Twamley).
Jacqueline E MayeSan Diego State University/University of California (UC), San Diego, Joint Doctoral Program in Clinical Psychology, San Diego (Mahmood, Vella); Research Service, U.S. Department of Veterans Affairs (VA) San Diego Healthcare System, San Diego (Mahmood, Maye, Keller, Van Patten, Clark, Twamley); Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego (Maye, Clark, Twamley); Department of Psychiatry, UC, San Diego (Van Patten, Twamley).
Amber V KellerSan Diego State University/University of California (UC), San Diego, Joint Doctoral Program in Clinical Psychology, San Diego (Mahmood, Vella); Research Service, U.S. Department of Veterans Affairs (VA) San Diego Healthcare System, San Diego (Mahmood, Maye, Keller, Van Patten, Clark, Twamley); Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego (Maye, Clark, Twamley); Department of Psychiatry, UC, San Diego (Van Patten, Twamley).
Ryan Van PattenSan Diego State University/University of California (UC), San Diego, Joint Doctoral Program in Clinical Psychology, San Diego (Mahmood, Vella); Research Service, U.S. Department of Veterans Affairs (VA) San Diego Healthcare System, San Diego (Mahmood, Maye, Keller, Van Patten, Clark, Twamley); Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego (Maye, Clark, Twamley); Department of Psychiatry, UC, San Diego (Van Patten, Twamley).
Jillian M R ClarkSan Diego State University/University of California (UC), San Diego, Joint Doctoral Program in Clinical Psychology, San Diego (Mahmood, Vella); Research Service, U.S. Department of Veterans Affairs (VA) San Diego Healthcare System, San Diego (Mahmood, Maye, Keller, Van Patten, Clark, Twamley); Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego (Maye, Clark, Twamley); Department of Psychiatry, UC, San Diego (Van Patten, Twamley).
Elizabeth W TwamleySan Diego State University/University of California (UC), San Diego, Joint Doctoral Program in Clinical Psychology, San Diego (Mahmood, Vella); Research Service, U.S. Department of Veterans Affairs (VA) San Diego Healthcare System, San Diego (Mahmood, Maye, Keller, Van Patten, Clark, Twamley); Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego (Maye, Clark, Twamley); Department of Psychiatry, UC, San Diego (Van Patten, Twamley).

Funding

FELLOWSHIP IN GERIATRIC MENTAL HEALTHT32MH019934 · NIMH · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Elizabeth W Twamley · 1994 to 2026
$9.5M
NIMH NIH HHS T32 MH019934RRD VA IK6 RX003504
6 · The paper itself

Abstract

objectiveThis study examined rates of objective cognitive and functional impairments and associations between cognitive performance and performance-based functional capacity in a well-characterized sample of adults experiencing homelessness.

methodsOne hundred participants completed a brief neuropsychological and functional capacity assessment and self-report questionnaires. Cognitive impairment rates were determined by comparing mean scores with published normative data, as well as by examining frequency of scores >1 SD below the mean. Pearson correlations were used to examine associations between cognitive and functional capacities.

resultsOverall, 65% of the study participants had scores in the cognitively impaired range on a brief cognitive screening test, 30% had impaired processing speed, and 11% met cognitive criteria for intellectual disability. Furthermore, 48% of the sample met functional impairment criteria, and poorer cognitive performance was strongly associated with poorer performance-based functional capacity (p<0.001).

conclusionsCognitive and functional impairments are common among sheltered adults experiencing homelessness, underscoring the need for routine objective cognitive screening and rehabilitation services.

Indexed as

Cognition DisordersCognitive DysfunctionIll-Housed PersonsAdultCognitionHumansNeuropsychological TestsCognitionFunctional capacityHomelessnessIntellectual functioningProcessing speed

Identifiers

PMID33397143
PMCPMC7952028

What OpenQuestion holds

Textmetadata
LicenceTDM
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.