Evidence map›Paper›PMID 32245451›Full record

ReviewBMC pulmonary medicine2020

Relationship between the Asthma Control Test (ACT) and other outcomes: a targeted literature review.

Bas C P van Dijk, Henrik Svedsater, Andreas Heddini, Linda Nelsen, Janita S Balradj, Cathelijne Alleman

Open access · goldAbstract readReview
In one paragraph

Review in BMC pulmonary medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
5.5field-weighted citation impact, top 3% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 83 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
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  5. Article
  6. Article
  7. Article
  8. Article
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  12. Article
  13. Clinical remission of mild-to-moderate asthma: Rates, contributing factors, and stability.The journal of allergy and clinical immunology. Global · 2025
    Article
  14. Observational
  15. Article
  16. Article
  17. Review
  18. Effectiveness of Pulmonary Rehabilitation on Severe Asthma Outcomes: A Pre-Post Study.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2024
    Article
  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 4 countries.

Bas C P van DijkPharmerit International, Rotterdam, The Netherlands. bascpvandijk@gmail.com.ORCID http://orcid.org/0000-0002-7343-4438
Henrik SvedsaterValue Evidence and Outcomes, GlaxoSmithKline plc., Brentford, UK.
Andreas HeddiniMedical Affairs, GlaxoSmithKline Nordic Region, Stockholm, Sweden.
Linda NelsenValue Evidence and Outcomes, GlaxoSmithKline plc., Collegeville, PA, USA.
Janita S BalradjPharmerit International, Rotterdam, The Netherlands. janita.balradj@gmail.com.
Cathelijne AllemanPharmerit International, Rotterdam, The Netherlands.
Pharmerit (Netherlands) · NLGlaxoSmithKline (Sweden) · SEGlaxoSmithKline (United Kingdom) · GBGlaxoSmithKline (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Asthma Control Test (ACT) has been used to assess asthma control in both clinical trials and clinical practice. However, the relationships between ACT score and other measures of asthma impact are not fully understood. Here, we evaluate how ACT scores relate to other clinical, patient-reported, or economic asthma outcomes.

methodsA targeted literature search of online databases and conference abstracts was performed. Data were extracted from articles reporting ACT score alongside one or more of: Asthma Control Questionnaire (ACQ) score; rescue medication use; exacerbations; lung function; health-/asthma-related quality of life (QoL); sleep quality; work and productivity; and healthcare resource use (HRU) and costs.

resultsA total of 1653 publications were identified, 74 of which were included in the final analysis. Of these, 69 studies found that improvement in ACT score was related to improvement in outcome(s), either as correlation or by association. The level of evidence for each relationship differed widely between outcomes: substantial evidence was identified for relationships between ACT score and ACQ score, lung function, and asthma-related QoL; moderate evidence was obtained for relationships between ACT score and rescue medication use, exacerbations, sleep quality, and work and productivity; limited evidence was identified for relationships between ACT score and general health-related QoL, HRU, and healthcare costs.

conclusionsFindings of this review suggest that the ACT is an appropriate measure for overall asthma impact and support its use in clinical trial settings. GlaxoSmithKline plc. study number HO-17-18170.

Indexed as

Severity of Illness IndexSurveys and QuestionnairesAsthmaClinical Trials as TopicDisease ProgressionHumansQuality of LifeACTAsthma Control TestExacerbationsLung functionQuality of lifeRescue medication

Identifiers

PMID32245451
PMCPMC7118934
OpenAlexW3014483196

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.