Evidence map›Paper›PMID 33882849›Full record

ArticleBMC geriatrics2021

Thematic research clusters in very old populations (≥ 80 years): a bibliometric approach.

Gregorio Gonzalez-Alcaide, Sergio Palacios-Fernandez, Jose-Manuel Ramos-Rincon

Abstract read
In one paragraph

Article in BMC geriatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–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

10 citing papers in PubMed.

  1. Is health-related quality of life significantly different in very elderly patients receiving home mechanical ventilation?Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2026
    Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
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  8. Bibliometric Analysis of the Knowledge Base and Future Trends on Sarcopenia from 1999-2021.International journal of environmental research and public health · 2022
    Review
  9. Article
  10. Review
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

3 authors.

Gregorio Gonzalez-Alcaide *Department of History of Science and Documentation, University of Valencia, Valencia, Spain. gregorio.gonzalez@uv.es.
Sergio Palacios-Fernandez *Department of Internal Medicine, Hospital Universitari Sant Joan d'Alacant, Alicante, Spain.
Jose-Manuel Ramos-RinconDepartment of Internal Medicine, General University Hospital of Alicante-ISABIAL, Alicante, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPopulation aging will be one of humanity's major challenges in the decades to come. In addition to focusing on the pathologies causing the greatest mortality and morbidity in this population, such as dementia, health research in elderly people must consider a myriad of other interlinked factors, such as geriatric syndromes, social aspects, and factors related to preserving quality of life and promoting healthy aging. This study aims to identify the main subject areas attracting research attention with regard to very old (≥ 80 years) populations.

methodsDocuments assigned with the medical subject heading "Aged, 80 and over" were retrieved from MEDLINE and the Web of Science. This dataset was used to determine publication output by disease, geographic region, country, and discipline. A co-word analysis was undertaken to identify thematic research clusters.

resultsSince the mid-2000s, there has been a boom in scientific output focusing specifically on very old populations, especially in Europe (43.7% of the documents) but also in North America (30.5%) and Asia (26%); other regions made only nominal contributions (0.5 to 4.4%). The USA produced the most research, while the most growth over the study period occurred in Japan, Spain, and China. Four broad thematic clusters were identified: a) geriatric diseases, health services for the aged, and social and psychological issues of aging; b) cardiovascular diseases; c) neoplasms, and d) bacterial infections & anti-bacterial agents.

conclusionsScientific research in very old populations covers a wide variety of interrelated topics. In quantitative terms, the top subject areas have to do with cardiovascular and cerebrovascular diseases (including aortic valve stenosis and stroke), dementia, and neoplasms. However, other degenerative pathologies, geriatric syndromes, and different social and psychosocial aspects also attract considerable interest. It is necessary to promote more equal participation in global research on pathologies and topics related to very elderly populations, as the highest rates of population aging and the largest numbers of elderly people in the next decades will be in low- and middle-income countries.

Indexed as

BibliometricsQuality of LifeAgedAsiaChinaEuropeHumansJapanSpainCardiovascular diseasesCerebrovascular diseasesDementiasElderlyGeriatric syndromesHealth research topicsNeoplasmsOldest oldPsychosocial aspects of agingResearch output

Identifiers

PMID33882849
PMCPMC8058755

What OpenQuestion holds

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Registered trials

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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.