Evidence map›Paper›PMID 37695755›Full record

ArticlePloS one2023

One-fourth of COVID-19 patients have an impaired pulmonary function after 12 months of disease onset.

Hugo D G van Willigen, Elke Wynberg, Anouk Verveen, Maartje Dijkstra, Bas J Verkaik, Orlane J A Figaroa, Marianne C de Jong, Annelou L I P van der Veen, Agata Makowska, Nelleke Koedoot and 7 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Recovery of lung function during the first year after COVID-19: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
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  4. Incentive Spirometer in COVID-19: A Systematic Review.Journal of clinical medicine · 2026
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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

17 authors at 3 institutions in 1 country.

Hugo D G van WilligenDepartment of Medical Microbiology & Infection Prevention, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.ORCID 0000-0002-4567-3132
Elke WynbergDepartment of Medical Microbiology & Infection Prevention, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.
Anouk VerveenDepartment of Medical Psychology, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.
Maartje DijkstraAmsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands.
Bas J VerkaikDepartment of Internal Medicine, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.
Orlane J A FigaroaDepartment of Internal Medicine, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.
Marianne C de JongDepartment of Internal Medicine, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.
Annelou L I P van der VeenDepartment of Internal Medicine, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.
Agata MakowskaDepartment of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands.
Nelleke KoedootDepartment of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands.
Pythia T NieuwkerkDepartment of Medical Psychology, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.ORCID 0000-0002-2616-1414
Anders BoydDepartment of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands.
Maria PrinsAmsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands.
Menno D de JongDepartment of Medical Microbiology & Infection Prevention, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.
Godelieve J de BreeAmsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands.
Joost G van den AardwegDepartment of Pulmonary Medicine, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.
RECoVERED Study Group
Amsterdam University Medical Centers · NLGGD Amsterdam · NLStichting HIV Monitoring · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is increasing data that show a persistently impaired pulmonary function upon recovery after severe infection. Little is known however about the extent, recovery and determinants of pulmonary impairment across the full spectrum of COVID-19 severity over time.

methodsIn a well characterized, prospective cohort of both hospitalised and non-hospitalised individuals with SARS-CoV-2 infection, the RECoVERED study, pulmonary function (diffusing capacity for carbon monoxide (DLCO)) and spirometry) was measured until one year after disease onset. Additionally, data on sociodemographics, clinical characteristics, symptoms, and health-related quality of life (HRQL) were collected. Pulmonary function and these determinants were modelled over time using mixed-effect linear regression. Determinants of pulmonary function impairment at 12 months after disease onset were identified using logistic regression.

findingsBetween May 2020 and December 2021, 301 of 349 participants underwent at least one pulmonary function test. After one year of follow-up, 25% of the participants had an impaired pulmonary function which translates in 11%, 22%, and 48% of the participants with mild, moderate and severe/critical COVID-19. Improvement in DLCO among the participants continued over the period across one, six and twelve months. Being older, having more than three comorbidities (p<0·001) and initial severe/critical disease (p<0·001) were associated with slower improvement of pulmonary function over time, adjusted for age and sex. HRQL improved over time and at 12 months was comparable to individuals without impaired pulmonary function.

interpretationThe prevalence of impaired pulmonary function after twelve months of follow-up, was still significant among those with initially moderate or severe/critical COVID-19. Pulmonary function increased over time in most of the severity groups. These data imply that guidelines regarding revalidation after COVID-19 should target individuals with moderate and severe/critical disease severities.

Indexed as

COVID-19Quality of LifeCarbon MonoxideHumansProspective StudiesSARS-CoV-2Carbon Monoxide

Identifiers

PMID37695755
PMCPMC10495003
OpenAlexW4386599961

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.