ArticleScientific reports2022
Development of airflow limitation, dyspnoea, and both in the general population: the Nagahama study.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Definitions of early COPD and predictors for disease progression: a systematic review.European respiratory review : an official journal of the European Respiratory Society · 2026Pooled it
- Lung function trajectories and exacerbation risks in preserved ratio impaired spirometry (PRISm) patients.Scientific reports · 2026Article
- Risk of All-Cause Mortality in US Adults With Preserved Ratio Impaired Spirometry: An Observational Study.International journal of chronic obstructive pulmonary disease · 2025Observational
- Phenotype to Treatable Traits-Based Management in Chronic Obstructive Pulmonary Disease.Cureus · 2024Review
Corrections and comments
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Authors and funding
15 authors.
Funding
Abstract
Subjects with subclinical respiratory dysfunction who do not meet the chronic obstructive pulmonary disease (COPD) criteria have attracted attention with regard to early COPD intervention. Our aim was to longitudinally investigate the risks for the development of airflow limitation (AFL) and dyspnoea, the main characteristics of COPD, in a large-scale community-based general population study. The Nagahama study included 9789 inhabitants, and a follow-up evaluation was conducted after 5 years. AFL was diagnosed using a fixed ratio (forced expiratory volume in one second (FEV
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Registered trials
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