ArticleRespiratory research2025
The effect of a post-bronchodilator FEV
Article in Respiratory research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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.
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.
Who cites it
4 citing papers in PubMed.
- Feasibility of opportunistic screening for preserved ratio impaired spirometry using chest radiography-based deep learning models.European journal of radiology open · 2026Article
- Article
- Factors Associated with Influenza and Pneumococcal Vaccine Hesitancy Among Patients with AECOPD: A Cross-Sectional Study in China Using the 3C Model.International journal of chronic obstructive pulmonary disease · 2025Article
- Advancing towards personalized medicine: Practical specifications for management of treatable traits in patients with COPD exacerbations.Therapeutic advances in respiratory diseaseReview
Corrections and comments
- Update of
Authors and funding
3 authors.
Funding
Abstract
backgroundGlobal Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines recommend the diagnosis of chronic obstructive pulmonary disease (COPD) only in patients with a post-bronchodilator forced expiratory volume in 1 s to forced vital capacity ratio (FEV
objectiveTo estimate the effect of a documented post-bronchodilator FEV
designWe used a regression discontinuity design to measure the effect of a post-bronchodilator FEV
participantsPatients included in a national electronic health record database who were 18 years of age and older and had a clinical encounter between 2007 and 2022 in which a post-bronchodilator FEV MAIN MEASURES: An encounter was associated with a COPD diagnosis if an international classification of disease code for COPD was assigned, and was associated with COPD treatment if a prescription for a medication commonly used to treat COPD was filled within 90 days.
resultsAmong 27,817 clinical encounters, involving 18,991 patients, a post-bronchodilator FEV
conclusionsThe presence of a documented post-bronchodilator FEV
Indexed as
Identifiers
What Socratic holds
Registered trials
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 Socratic graph.