Evidence map›Paper›PMID 35066970›Full record

SynthesisInternal medicine journal2022

Frailty and mortality associations in patients with COVID-19: a systematic review and meta-analysis.

Ashwin Subramaniam, Kiran Shekar, Afsana Afroz, Sushma Ashwin, Baki Billah, Hamish Brown, Harun Kundi, Zheng Jie Lim, Mallikarjuna Ponnapa Reddy, J Randall Curtis

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Internal medicine journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

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

  1. Pooled it
  2. Recognise, respond, reflect: A value-based framework for rapid response teams.Critical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Observational
  10. Article
  11. Frailty in Critically Ill Patients with COVID-19: The Lessons Learned.Advances in experimental medicine and biology · 2024
    Review
  12. The Role of Surgical Prehabilitation During the COVID-19 Pandemic and Beyond.Physical medicine and rehabilitation clinics of North America · 2023
    Review
  13. Article
  14. The impact of age on intensive care.Ageing research reviews · 2023
    Review
  15. Article
  16. Article
  17. Article
  18. COVID-19: Some unresolved issues.Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2022
    Review
  19. 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

10 authors.

Ashwin SubramaniamDepartment of Intensive Care Medicine, Peninsula Health, Melbourne, Victoria, Australia.ORCID 0000-0002-8292-7357
Kiran ShekarAdult Intensive Care Services, The Prince Charles Hospital, Brisbane, Queensland, Australia.
Afsana AfrozCentre for Integrated Critical Care, Department of Medicine and Radiology, Melbourne Medical School, Melbourne, Victoria, Australia.
Sushma AshwinDepartment of Health Economics, School of Health and Social Development, Deakin University, Melbourne, Victoria, Australia.
Baki BillahDepartment of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
Hamish BrownDepartment of Intensive Care Medicine, Peninsula Health, Melbourne, Victoria, Australia.ORCID 0000-0002-3470-6701
Harun KundiDepartment of Cardiology, Ankara City Hospital, Ankara, Turkey.
Zheng Jie LimDepartment of Anaesthesiology, Austin Health, Melbourne, Victoria, Australia.
Mallikarjuna Ponnapa ReddyDepartment of Intensive Care Medicine, Peninsula Health, Melbourne, Victoria, Australia.
J Randall CurtisCambia Palliative Care Centre of Excellence, University of Washington, Seattle, Washington, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundObservational data during the pandemic have demonstrated mixed associations between frailty and mortality.

aimTo examine associations between frailty and short-term mortality in patients hospitalised with coronavirus disease 2019 (COVID-19).

methodsIn this systematic review and meta-analysis, we searched PubMed, Embase and the COVID-19 living systematic review from 1 December 2019 to 15 July 2021. Studies reporting mortality and frailty scores in hospitalised patients with COVID-19 (age ≥18 years) were included. Data on patient demographics, short-term mortality (in hospital or within 30 days), intensive care unit (ICU) admission and need for invasive mechanical ventilation (IMV) were extracted. The quality of studies was assessed using the Newcastle-Ottawa Scale.

resultsTwenty-five studies reporting 34 628 patients were included. Overall, 26.2% (n = 9061) died. Patients who died were older (76.7 ± 9.6 vs 69.2 ± 13.4), more likely male (risk ratio (RR) = 1.08; 95% confidence interval (CI): 1.06-1.11) and had more comorbidities. Fifty-eight percent of patients were frail. Adjusting for age, there was no difference in short-term mortality between frail and non-frail patients (RR = 1.04; 95% CI: 0.84-1.28). The non-frail patients were commonly admitted to ICU (27.2% (4256/15639) vs 29.1% (3567/12274); P = 0.011) and had a higher mortality risk (RR = 1.63; 95% CI: 1.30-2.03) than frail patients. Among patients receiving IMV, there was no difference in mortality between frail and non-frail (RR = 1.62; 95% CI 0.93-2.77).

conclusionThis systematic review did not demonstrate an independent association between frailty status and short-term mortality in patients with COVID-19. Patients with frailty were less commonly admitted to ICU and non-frail patients were more likely to receive IMV and had higher mortality risk. This finding may be related to allocation decisions for patients with frailty amidst the pandemic.

Indexed as

COVID-19FrailtyAdolescentAgedFrail ElderlyHospital MortalityHumansIntensive Care UnitsLength of StayMalePandemicsCOVID-19frailtyhospital-related mortalitymeta-analysisolder peoplesystematic review

Identifiers

PMID35066970
PMCPMC9314619

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.