Title Page
Abstracts
Contents
Introduction 9
Methods 11
Results 16
3-1. Basic characteristics of the study patients 16
3-2. PM₂.₅ concentrations and lifestyle practices to reduce PM exposure 18
3-3. Relationship between Indoor and outdoor PM₂.₅ concentrations and participants' social environment 21
3-4. Lifestyle practices and acute COPD exacerbations according to Indoor PM₂.₅ concentrations 23
Discussion 25
Conclusion 31
References 33
국문요약 39
Table 1. Baseline characteristics of the study participants. 17
Table 2. Questionnaire about lifestyle practices to reduce PM exposure 12
Table 3. Relative risk of difference between acute exacerbations of COPD when Performed every day and not performed every day. 23
Figure 1. [제목없음] 19
Figure 2. [제목없음] 19
Figure 3. [제목없음] 20
Figure 4. [제목없음] 21
Figure 5. [제목없음] 22
Figure 6. [제목없음] 22
Figure 7. [제목없음] 25
Figure 8. [제목없음] 30