Evidence map›Paper›PMID 36788605›Full record

ArticleRespiratory research2023

Worsening of asthma control after recovery from mild to moderate COVID-19 in patients from Hong Kong.

Wang Chun Kwok, Terence Chi Chun Tam, David Chi Leung Lam, Jackson Ka Chun Leung, King Pui Florence Chan, Shung Kay Samuel Chan, Ka Yan Chiang, Mary Sau Man Ip, James Chung Man Ho

Open access · goldAbstract read
In one paragraph

Article in Respiratory research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

15 citing papers in PubMed, 21 citations in OpenAlex.

  1. Trial
  2. Asthma control and exacerbation risk following SARS-CoV-2 infection in the post-acute COVID-19 phase: a systematic review.Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Observational
  8. Review
  9. Article
  10. Article
  11. Article
  12. COVID-19 and Long-term Risk of Ischemic Heart Disease in Asthma.Allergy, asthma & immunology research · 2025
    Article
  13. Article
  14. Article
  15. 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

9 authors at 2 institutions in 2 countries.

Wang Chun Kwok *Department of Medicine, The University of Hong Kong, Queen Mary Hospital, 4/F, Professorial Block, 102 Pokfulam Road, Pokfulam, Hong Kong, Special Administrative Region, China.
Terence Chi Chun Tam *Department of Medicine, The University of Hong Kong, Queen Mary Hospital, 4/F, Professorial Block, 102 Pokfulam Road, Pokfulam, Hong Kong, Special Administrative Region, China.
David Chi Leung LamDepartment of Medicine, The University of Hong Kong, Queen Mary Hospital, 4/F, Professorial Block, 102 Pokfulam Road, Pokfulam, Hong Kong, Special Administrative Region, China.
Jackson Ka Chun LeungDepartment of Medicine, The University of Hong Kong, Queen Mary Hospital, 4/F, Professorial Block, 102 Pokfulam Road, Pokfulam, Hong Kong, Special Administrative Region, China.
King Pui Florence ChanDepartment of Medicine, The University of Hong Kong, Queen Mary Hospital, 4/F, Professorial Block, 102 Pokfulam Road, Pokfulam, Hong Kong, Special Administrative Region, China.
Shung Kay Samuel ChanDepartment of Medicine, The University of Hong Kong, Queen Mary Hospital, 4/F, Professorial Block, 102 Pokfulam Road, Pokfulam, Hong Kong, Special Administrative Region, China.
Ka Yan ChiangDepartment of Medicine, The University of Hong Kong, Queen Mary Hospital, 4/F, Professorial Block, 102 Pokfulam Road, Pokfulam, Hong Kong, Special Administrative Region, China.
Mary Sau Man IpDepartment of Medicine, The University of Hong Kong, Queen Mary Hospital, 4/F, Professorial Block, 102 Pokfulam Road, Pokfulam, Hong Kong, Special Administrative Region, China.
James Chung Man HoDepartment of Medicine, The University of Hong Kong, Queen Mary Hospital, 4/F, Professorial Block, 102 Pokfulam Road, Pokfulam, Hong Kong, Special Administrative Region, China. jhocm@hku.hk.
University of Hong Kong · HKQueen Mary Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhile there are postulations that asthma is potentially associated with severe coronavirus disease 2019 (COVID-19), there has been conflicting results from studies on the impact mild-to-moderate COVID-19 on asthma control after recovery.

methodsA case control study on the association between mild-to-moderate COVID-19 and asthma control post infection was conducted. The primary outcome was a reduction in Asthma Control Test (ACT) score by ≥ 3 points post-COVID infection. The secondary outcomes included the change in ACT score, the proportion of patient with ACT score who dropped to ≤ 15 on enrolment visit and the need for escalation of asthma maintenance therapy.

resultsOut of the total of 221 adult patients with asthma recruited, 111 had mild-to-moderate COVID-19 within 30 to 270 days prior to study enrolment. The adjusted odds ratio (aOR) for a reduction in ACT score by ≥ 3 points after COVID-19 was 3.105 (95% CI = 1.385-6.959, p = 0.006). The odds of escalation of asthma maintenance therapy by at least 1 Global Initiative for Asthma (GINA) step was 4.733 (95% CI = 1.151-19.467, p = 0.031) and asthma patient are more likely to become uncontrolled after COVID-19 [aOR = 5.509 (95% CI = 1.061-28.600, p = 0.042)].

conclusionMild-to-moderate COVID-19 among asthma patients, upon recovery, was associated with worsening of asthma symptom, lower ACT score, a higher need for escalation of asthma maintenance therapy and more uncontrolled asthma.

Indexed as

AsthmaCOVID-19AdultCase-Control StudiesHong KongHumansSeverity of Illness IndexAsthmaAsthma controlAsthma exacerbationCOVID-19

Identifiers

PMID36788605
PMCPMC9927038
OpenAlexW4320726147

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.