Risk factors for respiratory symptoms in adults: The Busselton Health Study

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Abstract

Background and objective The prevalence of reported doctor-diagnosed ‘asthma’ increased between 1990 and 2005–2007 in Busselton, Western Australia, accompanied by increased reported cough and phlegm but not recent wheeze. Possible reasons for the increase in diagnosed asthma include environmental exposures and diagnostic transfer. The aim of this study was to relate subject characteristics and exposures to the presence of wheeze and/or current cough/phlegm in the 2005–2007 survey. Methods A gender- and age-stratified random sample of 2862 adults from the Busselton shire completed questionnaires regarding doctor-diagnosed asthma, respiratory symptoms and environmental exposures; and measures of anthropometry, spirometry, exhaled nitric oxide (eNO), airway hyperresponsiveness (AHR) and atopy. Associations between respiratory symptoms and subject characteristics were assessed in 2656 subjects. Results Wheeze was reported by 23% of subjects, cough/phlegm by 22% and both by 9%. The significant and independent correlates of wheeze were reflux symptoms, lung function, AHR, eNO, atopy, body mass index and smoking. The significant and independent correlates of cough/phlegm were reflux symptoms, lung function, smoking and dusty job. Subjects more likely to report only wheeze than only cough/phlegm were female, aged <40 years, atopic, had lower percentage predicted forced expiratory volume in one second (FEV1) or higher percentage predicted force vital capacity. Conclusions A variety of risk factors was associated with wheeze or cough/phlegm or both. Increased non-allergic exposures may account for increased prevalence of reported cough and phlegm and may contribute to increased reported asthma in adults.
Original languageEnglish
Pages (from-to)1256-1260
JournalRespirology
Volume18
Issue number8
Early online date28 Oct 2013
DOIs
Publication statusPublished - Nov 2013

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Cough
Health
Asthma
Environmental Exposure
Nitric Oxide
Smoking
Lung
Western Australia
Anthropometry
Spirometry
Vital Capacity
Forced Expiratory Volume
Body Mass Index

Cite this

@article{102ee5b4c03f4307af7d4aa8864af8c1,
title = "Risk factors for respiratory symptoms in adults: The Busselton Health Study",
abstract = "Background and objective The prevalence of reported doctor-diagnosed ‘asthma’ increased between 1990 and 2005–2007 in Busselton, Western Australia, accompanied by increased reported cough and phlegm but not recent wheeze. Possible reasons for the increase in diagnosed asthma include environmental exposures and diagnostic transfer. The aim of this study was to relate subject characteristics and exposures to the presence of wheeze and/or current cough/phlegm in the 2005–2007 survey. Methods A gender- and age-stratified random sample of 2862 adults from the Busselton shire completed questionnaires regarding doctor-diagnosed asthma, respiratory symptoms and environmental exposures; and measures of anthropometry, spirometry, exhaled nitric oxide (eNO), airway hyperresponsiveness (AHR) and atopy. Associations between respiratory symptoms and subject characteristics were assessed in 2656 subjects. Results Wheeze was reported by 23{\%} of subjects, cough/phlegm by 22{\%} and both by 9{\%}. The significant and independent correlates of wheeze were reflux symptoms, lung function, AHR, eNO, atopy, body mass index and smoking. The significant and independent correlates of cough/phlegm were reflux symptoms, lung function, smoking and dusty job. Subjects more likely to report only wheeze than only cough/phlegm were female, aged <40 years, atopic, had lower percentage predicted forced expiratory volume in one second (FEV1) or higher percentage predicted force vital capacity. Conclusions A variety of risk factors was associated with wheeze or cough/phlegm or both. Increased non-allergic exposures may account for increased prevalence of reported cough and phlegm and may contribute to increased reported asthma in adults.",
author = "Alan James and Matthew Knuiman and Mark Divitini and Jennie Hui and Michael Hunter and Siobhain Mulrennan and Arthur Musk",
year = "2013",
month = "11",
doi = "10.1111/resp.12147",
language = "English",
volume = "18",
pages = "1256--1260",
journal = "Asian Pacific Journal of Respirology",
issn = "1323-7799",
publisher = "John Wiley & Sons",
number = "8",

}

TY - JOUR

T1 - Risk factors for respiratory symptoms in adults: The Busselton Health Study

AU - James, Alan

AU - Knuiman, Matthew

AU - Divitini, Mark

AU - Hui, Jennie

AU - Hunter, Michael

AU - Mulrennan, Siobhain

AU - Musk, Arthur

PY - 2013/11

Y1 - 2013/11

N2 - Background and objective The prevalence of reported doctor-diagnosed ‘asthma’ increased between 1990 and 2005–2007 in Busselton, Western Australia, accompanied by increased reported cough and phlegm but not recent wheeze. Possible reasons for the increase in diagnosed asthma include environmental exposures and diagnostic transfer. The aim of this study was to relate subject characteristics and exposures to the presence of wheeze and/or current cough/phlegm in the 2005–2007 survey. Methods A gender- and age-stratified random sample of 2862 adults from the Busselton shire completed questionnaires regarding doctor-diagnosed asthma, respiratory symptoms and environmental exposures; and measures of anthropometry, spirometry, exhaled nitric oxide (eNO), airway hyperresponsiveness (AHR) and atopy. Associations between respiratory symptoms and subject characteristics were assessed in 2656 subjects. Results Wheeze was reported by 23% of subjects, cough/phlegm by 22% and both by 9%. The significant and independent correlates of wheeze were reflux symptoms, lung function, AHR, eNO, atopy, body mass index and smoking. The significant and independent correlates of cough/phlegm were reflux symptoms, lung function, smoking and dusty job. Subjects more likely to report only wheeze than only cough/phlegm were female, aged <40 years, atopic, had lower percentage predicted forced expiratory volume in one second (FEV1) or higher percentage predicted force vital capacity. Conclusions A variety of risk factors was associated with wheeze or cough/phlegm or both. Increased non-allergic exposures may account for increased prevalence of reported cough and phlegm and may contribute to increased reported asthma in adults.

AB - Background and objective The prevalence of reported doctor-diagnosed ‘asthma’ increased between 1990 and 2005–2007 in Busselton, Western Australia, accompanied by increased reported cough and phlegm but not recent wheeze. Possible reasons for the increase in diagnosed asthma include environmental exposures and diagnostic transfer. The aim of this study was to relate subject characteristics and exposures to the presence of wheeze and/or current cough/phlegm in the 2005–2007 survey. Methods A gender- and age-stratified random sample of 2862 adults from the Busselton shire completed questionnaires regarding doctor-diagnosed asthma, respiratory symptoms and environmental exposures; and measures of anthropometry, spirometry, exhaled nitric oxide (eNO), airway hyperresponsiveness (AHR) and atopy. Associations between respiratory symptoms and subject characteristics were assessed in 2656 subjects. Results Wheeze was reported by 23% of subjects, cough/phlegm by 22% and both by 9%. The significant and independent correlates of wheeze were reflux symptoms, lung function, AHR, eNO, atopy, body mass index and smoking. The significant and independent correlates of cough/phlegm were reflux symptoms, lung function, smoking and dusty job. Subjects more likely to report only wheeze than only cough/phlegm were female, aged <40 years, atopic, had lower percentage predicted forced expiratory volume in one second (FEV1) or higher percentage predicted force vital capacity. Conclusions A variety of risk factors was associated with wheeze or cough/phlegm or both. Increased non-allergic exposures may account for increased prevalence of reported cough and phlegm and may contribute to increased reported asthma in adults.

U2 - 10.1111/resp.12147

DO - 10.1111/resp.12147

M3 - Article

VL - 18

SP - 1256

EP - 1260

JO - Asian Pacific Journal of Respirology

JF - Asian Pacific Journal of Respirology

SN - 1323-7799

IS - 8

ER -