Evidence map›Paper›PMID 26677939›Full record

ArticleThe European respiratory journal2016

Incidence of airflow limitation in subjects 65-100 years of age.

Johannes A Luoto, Sölve Elmståhl, Per Wollmer, Mats Pihlsgård

Abstract read
In one paragraph

Article in The European respiratory journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

  1. Article
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  9. Observational
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  16. Article
  17. Asthma Over the Age of 65: All's Well That Ends Well.The journal of allergy and clinical immunology. In practice
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Johannes A LuotoDept of Health Sciences, Division of Geriatric Medicine, Scania University Hospital, Lund University, Malmö, Sweden johannes.luoto@med.lu.se.ORCID http://orcid.org/0000-0002-7067-7231
Sölve ElmståhlDept of Health Sciences, Division of Geriatric Medicine, Scania University Hospital, Lund University, Malmö, Sweden.
Per WollmerClinical Physiology and Nuclear Medicine Unit, Dept of Translational Medicine, Scania University Hospital, Lund University, Malmö, Sweden.
Mats PihlsgårdDept of Health Sciences, Division of Geriatric Medicine, Scania University Hospital, Lund University, Malmö, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The true incidence of chronic obstructive pulmonary disease is largely unknown, because the few longitudinal studies performed have used diagnostic criteria no longer recommended by either the European Respiratory Society or the American Thoracic Society (ATS).We studied the incidence and significance of airflow limitation in a population-based geriatric sample using both an age-dependent predicted lower limit of normal (LLN) value and a fixed-ratio spirometric criterion.Out of 2025 subjects with acceptable spirometry at baseline, 984 subjects aged 65-100 years completed a 6-year follow-up visit. Smoking habits were registered at baseline. Exclusion criteria were non-acceptable spirometry performance according to ATS criteria and inability to communicate. Airflow limitation was defined both according to forced expiratory volume in 1 s (FEV1)/forced vital capacity ratio <0.7 and <LLN.The incidence of airflow limitation per 1000 person-years was 28.2 using a fixed ratio and 11.7 with LLN, corresponding to a 1.41-fold higher incidence rate using a fixed ratio. The incidence increased dramatically with age when using a fixed ratio, but less so when using LLN. In addition, a sex effect was observed with the LLN criterion. LLN airflow limitation was associated with increased 5-year mortality. Presence of fixed-ratio airflow limitation in individuals classified by LLN as non-obstructive was not associated with increased mortality.

Indexed as

AgedAged, 80 and overAge FactorsCohort StudiesFemaleForced Expiratory VolumeHumansIncidenceLongitudinal StudiesMaleProspective StudiesPulmonary Disease, Chronic ObstructiveSex FactorsSmokingSpirometrySweden

Identifiers

PMID26677939
PMCPMC4733568

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Registered trials

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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.