Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
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Association between Employment Status and the Prevalence of COPD for Manufacturing and Construction Workers

제조업 및 건설업 근로자들의 근로 형태와 COPD발생 간의 연관성

  • Kim, Jennifer Ivy (Department of Preventive Medicine, College of Medicine, The Catholic University of Korea) ;
  • Seo, Hyekyung (Department of Preventive Medicine, College of Medicine, The Catholic University of Korea) ;
  • Kim, Hyunwook (Department of Preventive Medicine, College of Medicine, The Catholic University of Korea)
  • 김지현 (가톨릭대학교 의과대학 예방의학교실) ;
  • 서혜경 (가톨릭대학교 의과대학 예방의학교실) ;
  • 김현욱 (가톨릭대학교 의과대학 예방의학교실)
  • Received : 2018.09.05
  • Accepted : 2018.12.23
  • Published : 2018.12.31
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Abstract

Objective: This study aims to analyze the relationship between employment status and the prevalence of chronic obstructive pulmonary disease (COPD) for manufacturing and construction workers. Methods: Subjects, who had or have worked as temporary workers in manufacturing or construction worksites for the longest career years, were extracted from the KNHANES(2007-2009) database. Characteristics of demographical, socio-economic, and smoking history were treated as independent variables. Considering that smoking experience and age are significantly influential in the prevalence of COPD, logistic regressions were analyzed after stratifying subjects according to their smoking experience and age. A two-stage stratified systematic sampling method was applied for the logistic regression analysis. Results: Age, gender, and household income level were associated with the prevalence of COPD in both smoking and non-smoking groups. However, employment status was only significant among smoking group. Smoking experience and age were significantly related to the prevalence of COPD among all age groups. In addition, employment status and household income level were also associated with the prevalence of COPD in young aged group. But gender was the only significant factor among the elder group. Conclusions: This study confirmed that employment status was a major social factor which may be related to the prevalence of COPD. Proper supports such as providing safety measures should be provided to temporary workers to manage their respiratory health.

Keywords

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Figure 1. Method scheme of analyzing the relationship between employment status and the prevalence of COPD after stratifying subjects according to smoking experience

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Figure 2. Method scheme of analyzing the relationship between employment status and the prevalence of COPD after stratifying subjects according to age group

Table 1. Criteria for the diagnosis of COPD

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Table 2. General characteristics of study participants

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Table 3. Distribution of pulmonary function status and the prevalence of COPD by employment status

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Table 4. Logistic regression analysis: Study participants with smoking experience

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Table 5. Logistic regression analysis: Study participants with no smoking experience

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Table 6. Logistic regression analysis: Study participants with young age (less than 56 years old)

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Table 7. Logistic regression analysis: Study participants with elder age (more than 56 years old)

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