Evidence map›Paper›PMID 33224453›Full record

ArticleEuropean clinical respiratory journal2020

The Swedish National Airway Register (SNAR): development, design and utility to date.

C Stridsman, J R Konradsen, L Vanfleteren, C Pedroletti, J Binnmyr, P Edfelt, K Fjällman Schärberg, Y Sjöö, F Nyberg, A Lindberg and 2 more

Open access · goldAbstract read
In one paragraph

Article in European clinical respiratory journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.4field-weighted citation impact, top 15% 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

24 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
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  6. Article
  7. Sublingual immunotherapy in children with asthma: A population-based register study.The journal of allergy and clinical immunology. Global · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
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  14. Uncontrolled asthma in school-aged children-a nationwide specialist care study.The journal of allergy and clinical immunology. Global · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  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

12 authors at 9 institutions in 1 country.

C StridsmanDepartment of Public Health and Clinical Medicine, Division of Medicine, the OLIN-unit, Umeå University, Umeå, Sweden.ORCID https://orcid.org/0000-0001-6622-3838
J R KonradsenDepartment of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden.
L VanfleterenCOPD Center, Department of Respiratory Medicine and Allergology, Sahlgrenska University Hospital, Gothenburg, Sweden.ORCID https://orcid.org/0000-0002-4387-4096
C PedrolettiDepartment of Woman and Child Health, Uppsala University, Uppsala, Sweden.
J BinnmyrThe Swedish Asthma- and Allergy Association, Stockholm, Sweden.
P EdfeltThe Swedish Heart and Lung Association, Stockholm, Sweden.
K Fjällman SchärbergThe Swedish National Airway Register, Gothenburg, Sweden.
Y SjööThe Swedish National Airway Register, Gothenburg, Sweden.
F NybergSchool of Public Health and Community, Institute of Medicine, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.
A LindbergDepartment of Public Health and Clinical Medicine, Division of Medicine, the OLIN-unit, Umeå University, Umeå, Sweden.
A TunsäterDepartment of Respiratory Medicine and Allergology, Skåne University Hospital, Lund University, Lund, Sweden.
A Ekberg-JanssonDepartment of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.
Swedish National Heritage Board · SEUmeå University · SEUniversity of Gothenburg · SEKarolinska Institutet · SELund University · SESahlgrenska University Hospital · SESwedish Asthma and Allergy Association · SESwedish Medical Association · SEUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Swedish National Airway Register (SNAR) was initiated in 2013 to ensure and improve the quality of care for patients with asthma and COPD.

aimTo describe the development and design of SNAR, and to study the 2019 data to evaluate its potential utility related to improvement of quality of care.

methodsSNAR includes data from patients with asthma (both children and adults) and COPD from primary, secondary and tertiary care, and also, for COPD inpatient care. Data on diagnostic investigations (e.g. spirometry, blood sample, skin prick test), symptom-scores, comorbidities and prescribed treatments are registered. The registrations are entered manually by healthcare professionals, or directly transferred from electronic medical records to a web-based platform.

resultsIn 2019, 1000 clinics participated and data were directly transferred by about 88% of them. The register included data on 205,833 patients with asthma and 80,372 with COPD (of these, 5% had both diagnoses). Registrations of new patients and follow-up visits from primary and secondary/tertiary care in 2019 were completed for 75,707 patients with asthma (11,818 children <12 yr, 6545 adolescents 12-17 yr, and 57,344 adults >17 yr) and 38,117 with COPD. Depending on age and disease group, 43-77% had performed spirometry, 36-65% Asthma Control Test, and 60% COPD Assessment Test. The prevalence of current smoking was about 2% in adolescents, 10% in adults with asthma, and 34% in COPD. For these, smoking cessation support was offered to 27%, 38% and 51%, respectively. Overall, limited data were available on investigation of allergy, 6-min walk test, patient education and written treatment plans. Regarding asthma, sex-differences in disease management were evident.

conclusionSNAR has cumulatively registered data from over 270,000 individuals, and the register is important for patients, caregivers, authorities, politicians and researchers to evaluate the effect of treatment and to ensure high and equal quality of care nationwide.

Indexed as

Asthmaasthma controlCOPDhealth statusquality registertreatment

Identifiers

PMID33224453
PMCPMC7594834
OpenAlexW3094569974

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.