Evidence map›Paper›PMID 29212527›Full record

ArticleAlzheimer's research & therapy2017

Anemia is associated with incidence of dementia: a national health screening study in Korea involving 37,900 persons.

Su-Min Jeong, Dong Wook Shin, Ji Eun Lee, Jung Hyeon Hyeon, Jinkook Lee, SangYun Kim

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
7.0field-weighted citation impact, top 2% 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

51 citing papers in PubMed, 98 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  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

6 authors at 4 institutions in 2 countries.

Su-Min JeongDepartment of Family Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
Dong Wook ShinDepartment of Family Medicine & Supportive Care Center, Samsung Medical Center, Samsung Comprehensive Cancer Hospital, Seoul, Republic of Korea. dwshin.md@gmail.com.ORCID http://orcid.org/0000-0001-8128-8920
Ji Eun LeeDepartment of Family Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
Jung Hyeon HyeonDepartment of Family Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
Jinkook LeeDepartment of Economics & Center for Economic & Social Research, University of Southern California, Los Angeles, CA, USA.
SangYun KimDepartment of Neurology, Seoul National University Bundang Hospital & Seoul National University College of Medicine, Seongnam, Republic of Korea.
Seoul National University Hospital · KRUniversity of Southern California · USSamsung Medical Center · KRSeoul National University Bundang Hospital · KR

Funding

Hanmi Pharmaceutical Co.,Ltd HM-IIT-ESO-026
6 · The paper itself

Abstract

backgroundThe aim of this study was to investigate whether anemia is associated with dementia incidence in the elderly.

methodsUsing the Korean National Health Insurance Service-National Health Screening Cohort (NHIS-HEALS) database, we identified 66-year-old subjects (n = 37,900) who were free of dementia and stroke. Anemia (hemoglobin < 12 g/dl for women and < 13 g/dl for men) and the severity of anemia (mild, moderate, or severe) were defined using World Health Organization criteria. The incidence of dementia was identified using International Classification of Diseases, Tenth Revision, dementia diagnosis codes (F00, F01, F02, F03, and G30) with prescription of an antidementia drug. Cox proportional hazards regression models were used to assess HRs for dementia incidence according to anemia.

resultsAfter adjusting for sex, baseline cognitive state, body mass index, smoking status, household income, disability, depression, hypertension, diabetes, and dyslipidemia, we found a significant association between anemia and dementia incidence (adjusted HR 1.24; 95% CI 1.02-1.51). The adjusted HRs for incidence of dementia according to the severity of anemia were 1.19 (95% CI 0.98-1.45) for those with mild anemia, 1.47 (95% CI 0.97-2.21) for those with moderate anemia, and 5.72 (95% CI 1.84-17.81) for those with severe anemia, showing a significant p value for trend (p = 0.003).

conclusionsAnemia is an independent risk factor for dementia incidence, with a marked increase of risk associated with severe anemia.

Indexed as

AgedAged, 80 and overAnemiaDementiaFemaleHumansIncidenceMaleMass ScreeningNational Health ProgramsRepublic of KoreaRisk FactorsAnemiaDementiaICD-10Severity of anemia

Identifiers

PMID29212527
PMCPMC5719530
OpenAlexW2773143320

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.