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Obstructive Lung Diseases |

Assessing Airflow Obstruction in a Rural Population: The Saskatchewan Rural Health Study

Chandima Karunanayake, PhD; Josh Lawson, PhD; Donna Rennie, PhD; Louise Hagel, MS; James Dosman, MD; Punam Pahwa, PhD
Author and Funding Information

University of Saskatchewan, Saskatoon, SK, Canada


Chest. 2014;145(3_MeetingAbstracts):357A. doi:10.1378/chest.1825748
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Abstract

SESSION TITLE: COPD Epidemiology & Physiology Posters

SESSION TYPE: Poster Presentations

PRESENTED ON: Saturday, March 22, 2014 at 01:15 PM - 02:15 PM

PURPOSE: Purpose: Canada’s fourth leading cause of death is chronic lower respiratory diseases including chronic obstructive pulmonary disease (COPD) and pneumonia. COPD is a leading cause of death worldwide and is frequently underdiagnosed and untreated. The objective of this paper is to determine the prevalence of airway obstruction (AO) and associated risk factors in farming and non-farming rural populations in Saskatchewan.

METHODS: METHODS: A prospective cohort study involving a respiratory questionnaire was conducted in 2010. A sub-population of adults subsequently participated in clinical assessments that involved anthropometric measures, lung function measurements, and allergy testing. Of those who participated in clinical assessments, 1488 participants of age 30 years and older and Caucasians were selected for this report. The primary outcome of interest was airflow obstruction (AO) defined as pre-bronchodilator FEV1/FVC < Lower limit of Normal (LLN) calculated using NHANES III reference equations.

RESULTS: RESULTS: The overall prevalence of AO was 10.3%. The prevalence of AO was 10.2% among farm and 10.5% among non-farm residents. The difference in prevalence of AO between farm and non-farm residents was not statistically significant. Our study reported that smoking, age, family history of lung trouble and respiratory illnesses (asthma and wheeze) were significant independent predictors of AO. Household income adequacy modified the relationships between AO and sex and home located near sewage pond or manure lagoon.

CONCLUSIONS: CONCLUSIONS: The results suggest that SES plays a critical role in modifying the relationship with AO with other factors.

CLINICAL IMPLICATIONS: These findings indicate the need for public health strategies and research to address socioeconomic status disparity in individuals with COPD.

DISCLOSURE: The following authors have nothing to disclose: Chandima Karunanayake, Josh Lawson, Donna Rennie, Louise Hagel, James Dosman, Punam Pahwa

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