ArticleThe Libyan journal of medicine2015
Defining obstructive ventilatory defect in 2015.
Article in The Libyan journal of medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Automated evaluation of typical patient-ventilator asynchronies based on lung hysteretic responses.Biomedical engineering online · 2023Article
- Review of the current use of global lung function initiative norms for spirometry (GLI-2012) and static lung volumes (GLI-2021) in Great Arab Maghreb (GAM) countries and steps required to improve their utilization.The Libyan journal of medicine · 2022Article
- Spirometric Patterns in Patients with Sleep-Related Breathing Disorders: Some Points to Highlight.Journal of family medicine and primary care · 2022Article
- Defining and grading an obstructive ventilatory defect (OVD): 'FEVThe Libyan journal of medicine · 2018Article
- The multi-ethnic global lung initiative 2012 (GLI-2012) norms reflect contemporary adult's Algerian spirometry.PloS one · 2018Article
- The Effects of Ramadan Fasting on the Spirometric Data of Healthy Adult Males.American journal of men's health · 2017Article
- Identification of subtypes in subjects with mild-to-moderate airflow limitation and its clinical and socioeconomic implications.International journal of chronic obstructive pulmonary disease · 2017Article
- Routine pulmonary lung function tests: Interpretative strategies and challenges.Chronic respiratory diseaseReview
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Authors and funding
3 authors.
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No grant is acknowledged in the PubMed record.
Abstract
introductionThere is no clear consensus as to what constitutes an obstructive ventilatory defect (OVD): Is it FEV1/FVC<lower limit of normal (LLN) or<0.70 (respectively, physiological and operational definitions)?
aimTo determine, according to the two definitions, the percentage of subjects having an OVD among them explored in a lung function exploration laboratory. POPULATION AND
methodsThis is a retrospective study including 4,730 subjects aged 17-85 years. Subjects were divided according to the presence [physio (+) or operat (+)] or absence [physio (-) or operat (-)] of an OVD, and into younger (<45 years, n=2,076), older (≥45 years, n=2,654), smokers (n=1,208), and non-smokers (n=3,522) groups.
resultsFor the total sample, the younger and older groups [mean±SD of age (years), respectively, 46.7±14.1; 33.9±7.4, and 56.8±9.1], the 'physiological definition' detected, respectively, 13.46, 43.22, and 5.09% more OVD than the 'operational one' (p<0.05). In addition, the operational definition, compared with the physiological one, overdiagnosed OVD in 2.33 and 0.44% of smokers and non-smokers, respectively, and underdiagnosed it in 4.46% and 29.72% of smokers and non-smokers, respectively (p<0.05). Compared with the group 'physio (-), operat (+)', the 'physio (+), operat (-)' one was younger (74.2±4.7 years vs. 40.9±10.3 years) and had significantly higher FEV1 (62±13% vs. 78±17%) and FVC (71±15% vs. 93±19%).
conclusionThe frequency of OVD much depends on the criteria used for its definition.
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