Spirometry and impulse oscillometry (IOS) for detection of respiratory abnormalities in metropolitan firefighters

Respirology : Official Journal of the Asian Pacific Society of Respirology
Tjard SchermerAlan Crockett

Abstract

As firefighters are at increased risk of adverse health effects, periodic examination of their respiratory health is important. The objective of this study was to establish whether the use of impulse oscillometry (IOS) reveals respiratory abnormalities in metropolitan firefighters that go undetected during routine respiratory health screening by spirometry and assessment of respiratory symptoms. This was a cross-sectional analysis of spirometry, IOS and questionnaire data from 488 male firefighters. Abnormal spirometry was defined as FEV(1), FEV(1)/FVC and/or FEF(50) below the lower limit of normal. Abnormal IOS was defined as resistance at 5 Hz (R5), frequency dependence of resistance (DeltaR5-R20) and/or reactance area (AX) above the upper limit of normal. Respiratory symptoms, smoking history, exposures and medical history were assessed. Data were analysed using logistic and linear regression models. The mean age of the firefighters was 43.8 (SD 8.4) years. There were 123 (25%) former smokers and 50 (10%) current smokers. Abnormal spirometry was detected in 12%, abnormal IOS in 9% and respiratory symptoms in 20% of firefighters. Current smoking was associated with all IOS parameters (OR for R5 = 3.1, OR for DeltaR5-R20 = 7.7...Continue Reading

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Citations

Jan 20, 2011·Respirology : Official Journal of the Asian Pacific Society of Respirology·Peter R EastwoodToby M Maher
Nov 13, 2018·Central European Journal of Public Health·Meşide GündüzözÖzcan Erel
Aug 29, 2017·PloS One·Claudia LlontopFrancisco García-Río
Jun 21, 2017·Canadian Respiratory Journal : Journal of the Canadian Thoracic Society·Flynn SlatteryAlan Crockett
Feb 26, 2021·International Journal of Chronic Obstructive Pulmonary Disease·Priyamvada S ChukowryAlice M Turner
Mar 4, 2011·Current Opinion in Allergy and Clinical Immunology

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