Prevalence and Risk Factors of Respiratory Symptoms in Rural Population

ABSTRACT Research has shown that respiratory symptoms, including chronic cough, chronic phlegm, shortness of breath, and wheeze, are important markers that contribute to hospitalization, lung function decline, and other respiratory illness. This report aims to estimate the prevalence of respiratory symptoms and associated environmental risk factors in farming and nonfarming rural-dwelling people. A baseline mail-out questionnaire to assess respiratory health outcomes as well as individual and contextual determinants in farm and small town cohorts was sent to 11,004 households within four geographical regions of Saskatchewan, Canada, in 2010. Completed questionnaires were received from 4624 households (8261 individuals). Outcome variables examined for this report were chronic cough, chronic phlegm, shortness of breath, and ever wheeze. Clustering effect within households was adjusted using generalized estimating equations. The prevalence of respiratory symptoms was chronic cough, 9.2% (farm vs. nonfarm: 8.1% vs. 10.0%); chronic phlegm, 8.2% (farm vs. nonfarm: 6.7% vs. 9.3%); shortness of breath, 29.1% (farm vs. nonfarm: 25.5% vs. 31.6%); and ever wheeze, 40.6% (farm vs. nonfarm: 38.1% vs. 42.5%). There was a significantly higher prevalence of each respiratory symptomin the nonfarming population compared with the farming population (P < .01). Respiratory symptoms were positively associated with smoking, allergic reaction to inhaled allergens, and other environmental factors for farming and nonfarming populations. The prevalence of respiratory symptoms was higher in the nonfarming rural population compared with the farming rural population. Environmental exposures such as work-related or home environment play an important role in the increased prevalence of respiratory symptoms in farming and nonfarming populations.

[1]  S. London,et al.  Respiratory disease in United States farmers , 2014, Occupational and Environmental Medicine.

[2]  J. Hui,et al.  Risk factors for respiratory symptoms in adults: The Busselton Health Study , 2013, Respirology.

[3]  Michael J. Allison,et al.  Sex-related differences in respiratory symptoms: results from the BOLD Study , 2013, European Respiratory Journal.

[4]  The Saskatchewan rural health study: an application of a population health framework to understand respiratory health outcomes , 2012, BMC Research Notes.

[5]  W. Pickett,et al.  Self-Selection Bias in an Epidemiological Study of Respiratory Health of a Rural Population , 2012, Journal of agromedicine.

[6]  T. Omachi,et al.  Relationship of obesity with respiratory symptoms and decreased functional capacity in adults without established COPD. , 2012, Primary care respiratory journal : journal of the General Practice Airways Group.

[7]  R. Langley.  Consequences of respiratory exposures in the farm environment. , 2011, North Carolina medical journal.

[8]  P. Mahesh,et al.  Prevalence of chronic cough, chronic phlegm & associated factors in Mysore, Karnataka, India , 2011, The Indian journal of medical research.

[9]  C. Karunanayake,et al.  Predictors of respiratory symptoms in a rural Canadian population: A longitudinal study of respiratory health. , 2011, Canadian respiratory journal.

[10]  P. Bakke,et al.  Respiratory symptoms in adults are related to impaired quality of life, regardless of asthma and COPD: results from the European community respiratory health survey , 2010, Health and quality of life outcomes.

[11]  G. Gudmundsson,et al.  Respiratory disorders are not more common in farmers. Results from a study on Icelandic animal farmers. , 2008, Respiratory medicine.

[12]  Amanda J. Wheeler,et al.  Quality of indoor residential air and health , 2008, Canadian Medical Association Journal.

[13]  D. Nowak,et al.  Characterisation of asthma among adults with and without childhood farm contact , 2007, European Respiratory Journal.

[14]  E. Rönmark,et al.  Socio-economic status is related to incidence of asthma and respiratory symptoms in adults , 2006, European Respiratory Journal.

[15]  J. Dosman,et al.  Longitudinal changes in prevalence of respiratory symptoms among Canadian grain elevator workers. , 2006, Chest.

[16]  K. Kreiss,et al.  Fungal and endotoxin measurements in dust associated with respiratory symptoms in a water-damaged office building. , 2006, Indoor air.

[17]  B. Shah,et al.  Household environmental tobacco smoke exposure, respiratory symptoms and asthma in non-smoker adults: a multicentric population study from India. , 2006, The Indian journal of chest diseases & allied sciences.

[18]  L. Facchini,et al.  [Farm work, dust exposure and respiratory symptoms among farmers]. , 2006, Revista de saude publica.

[19]  L. Facchini,et al.  Pesticides and respiratory symptoms among farmers. , 2005, Revista de saude publica.

[20]  A. Gulsvik,et al.  The effect of educational level on the incidence of asthma and respiratory symptoms. , 2004, Respiratory medicine.

[21]  J. May,et al.  Prevalence and predictors of respiratory symptoms among New York farmers and farm residents. , 2004, American journal of industrial medicine.

[22]  R. Ehrlich,et al.  Body mass index and the risk of asthma in adults. , 2004, Respiratory medicine.

[23]  M. Chan-yeung,et al.  Occupational and environmental risk factors for respiratory symptoms in rural Beijing, China , 2002, European Respiratory Journal.

[24]  S. Guerra,et al.  The relation of body mass index to asthma, chronic bronchitis, and emphysema. , 2002, Chest.

[25]  D. Jarvis,et al.  Association of body mass index with respiratory symptoms and atopy: results from the European Community Respiratory Health Survey , 2002, Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology.

[26]  S. London,et al.  Chemical predictors of wheeze among farmer pesticide applicators in the Agricultural Health Study. , 2002, American journal of respiratory and critical care medicine.

[27]  B. Danuser,et al.  Respiratory symptoms in European animal farmers. , 2001, The European respiratory journal.

[28]  C. Zwerling,et al.  Respiratory symptoms: associations with pesticides, silos, and animal confinement in the Iowa Farm Family Health and Hazard Surveillance Project. , 2000, American journal of industrial medicine.

[29]  P. Hanke,et al.  Health and environment of rural families: results of a Community Canvass survey in the Prairie Ecosystem Study (PECOS). , 2000, Journal of agricultural safety and health.

[30]  D. Boldy,et al.  Chronic respiratory symptoms, von Willebrand factor and longitudinal decline in FEV1. , 1999, Respiratory medicine.

[31]  J. Vestbo,et al.  Association of chronic mucus hypersecretion with FEV1 decline and chronic obstructive pulmonary disease morbidity. Copenhagen City Heart Study Group. , 1996, American journal of respiratory and critical care medicine.

[32]  Strategies for population health--investing in the health of Canadians. , 1996, Probe.

[33]  John D. Spengler,et al.  Respiratory Symptoms and Housing Characteristics , 1994 .

[34]  M. Woodward,et al.  Prevalence of chronic cough and phlegm among male cigar and pipe smokers: results of the Scottish Heart Health Study. , 1993, Thorax.

[35]  D. Dockery,et al.  Longitudinal lung function decline in subjects with respiratory symptoms. , 1992, The American review of respiratory disease.

[36]  K. Donham,et al.  Respiratory symptoms and lung function among workers in swine confinement buildings: a cross-sectional epidemiological study. , 1984, Archives of environmental health.

[37]  H. Muller.  Chronic bronchitis and emphysema. , 1959, South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde.