Evidence map›Paper›PMID 29946008›Full record

Observational studyThe European respiratory journal2018

Prevalence, characteristics and management of frequently exacerbating asthma patients: an observational study in Sweden (PACEHR).

Christer Janson, Karin Lisspers, Björn Ställberg, Gunnar Johansson, Marcus Thuresson, Gunilla Telg, Kjell Larsson

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in The European respiratory journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Observational
  4. Article
  5. Review
  6. Article
  7. Article
  8. Bringing asthma care into the twenty-first century.NPJ primary care respiratory medicine · 2020
    Review
  9. Overuse of short-acting βThe European respiratory journal · 2020
    Article
  10. Article
  11. Observational
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

7 authors.

Christer JansonRespiratory, Allergy and Sleep Research, Dept of Medical Sciences, Uppsala University, Uppsala, Sweden.
Karin LisspersPublic Health and Caring Science, Family Medicine and Preventive Medicine, Uppsala University, Uppsala, Sweden.
Björn StällbergPublic Health and Caring Science, Family Medicine and Preventive Medicine, Uppsala University, Uppsala, Sweden.
Gunnar JohanssonPublic Health and Caring Science, Family Medicine and Preventive Medicine, Uppsala University, Uppsala, Sweden.
Marcus ThuressonStatisticon AB, Uppsala, Sweden.
Gunilla TelgAstraZeneca Nordic-Baltic, Södertälje, Sweden.
Kjell LarssonThe National Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of the study was to investigate the prevalence, management and characteristics of asthma patients with frequent exacerbations.Data from asthma patients (aged ≥18 years) identified in primary care medical records were linked to Swedish national health registries. Exacerbations were defined as hospitalisations, emergency visits and/or collection of oral steroids. Frequent exacerbations were defined as two or more exacerbations per year during the 3-year observation period.Of 18 724 asthma patients, 81.49% had no exacerbations and 6.3% had frequent exacerbations in the year prior to the index date. Frequent exacerbations were observed yearly for 1.8% of the patients. Frequent exacerbators were older, more often females, and had increased eosinophil and neutrophil counts, lower lung function, and more comorbidities than patients without exacerbations. There was a slight increase in asthma medication claims and a slight decrease in physician visits compared with baseline, both in the group with and the group without frequent exacerbations.Patients with frequent exacerbations were characterised by greater age, female predominance, high eosinophil and neutrophil counts, and high prevalence of comorbidities. This study indicates that the Swedish healthcare system lacks efficiency to adjust treatment and management for this patient group. With new treatment options targeting severe asthma available, identification of these patients should be in focus to ensure reduction of exacerbations.

Indexed as

Disease ProgressionAdultAgedAsthmaComorbidityFemaleHumansLeukocyte CountLogistic ModelsMaleMiddle AgedNeutrophilsPrevalenceRegistriesSeverity of Illness IndexSex Factors

Identifiers

PMID29946008
PMCPMC6092688

What OpenQuestion holds

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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.