ArticleJournal of clinical and diagnostic research : JCDR2015
Diurnal Variation in Peak Expiratory Flow and Forced Expiratory Volume.
Article in Journal of clinical and diagnostic research : JCDR, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed.
- Revefenacin Area Under the Curve Spirometry in Patients with Moderate to Very Severe COPD.International journal of chronic obstructive pulmonary disease · 2024Trial
- Influence of Chronotype and Theobromine on the 24-h Variation in Peak Expiratory Flow Rate in Healthy Adults.Journal of circadian rhythms · 2025Article
- Inhalation of patchouli essential oil alleviates airway inflammation in cigarette smoke-induced COPD mice.Scientific reports · 2024Article
- A stochastic mixed effects model to assess treatment effects and fluctuations in home-measured peak expiratory flow and the association with exacerbation risk in asthma.CPT: pharmacometrics & systems pharmacology · 2022Article
- Cardiorespiratory fitness as a mediator in the relationship between lung function and blood pressure in adults.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2022Article
- Changes in pulmonary function and feasibility of portable continuous laryngoscopy during maximal uphill running.BMJ open sport & exercise medicine · 2020Article
- Standardization of Spirometry 2019 Update. An Official American Thoracic Society and European Respiratory Society Technical Statement.American journal of respiratory and critical care medicine · 2019Article
- Global expression profiling and pathway analysis in two different population groups in relation to high altitude.Functional & integrative genomics · 2019Article
- [Can Preoperative Peak Expiratory Flow Predict Postoperative Pulmonary Complications in Lung Cancer Patients Undergoing Lobectomy?]Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2017Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionDiurnal variability in airways has most commonly been reported using peak expiratory flow (PEF) and forced expiratory volume in one second (FEV1). Characteristics of variability in small, mid and large airways caliber are expected to be different but have not been studied.
aimThe aim of the study was to assess diurnal variation in small mid and large airways caliber using FEF25, FEF50, FEF75 and FEF25-75 along with PEF and FEV1 in healthy subjects. MATERIALS AND
methodsSpirometry was performed in 161 healthy subjects twice in a day. Diurnal variability in FEF25, FEF50, FEF75, FEF25-75, PEF and FEV1 were determined and compared.
resultsIt revealed that all parameters exhibit significant diurnal variability. Diurnal variability is highest in large airways and lowest in smaller airways.
conclusionProximal airways show greater diurnal variation in their caliber than distal airways as reflected by greater variability in PEF as compared to FEV1.
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