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Original Research

Characteristics of Patients with Chronic Obstructive Pulmonary Disease Exposed to Different Environmental Risk Factors: A Large Cross-Sectional Study

, ORCID Icon, , , , ORCID Icon, , , , , & show all
Pages 2857-2867 | Published online: 06 Nov 2020

Figures & data

Table 1 Characteristics of the Studied COPD Patients

Figure 1 Study flow diagram.

Abbreviation: COPD, chronic obstructive pulmonary disease.
Figure 1 Study flow diagram.

Table 2 Comparison of the Characteristics in the Subgroups of COPD Patients Exposed to Tobacco Alone and Tobacco Combined with Other Risk Factors

Table 3 Comparison of the Characteristics in the Subgroups of COPD Patients Exposed to Tobacco Alone, Biomass Smoke Alone, Occupational Exposure Alone, and Other Risk Factors

Table 4 Results are from Generalized Linear Mixed Models for the Association Between COPD Patients Exposed to Tobacco Alone and Tobacco Combined with Other Risk Factors

Table 5 Results are from Generalized Linear Mixed Models for the Association Among COPD Patients Exposed to Tobacco Alone, Biomass Smoke Alone, Occupational Exposure Alone, and Other Risk Factors

Figure 2 CAT component scores in COPD patients exposed to tobacco alone, biomass smoke alone, occupational exposure alone, and other risk factors.

Note: (A) Cough. (B) Phlegm. (C) Chest tightness. (D) Shortness of breath. (E) Limited at home. (F) Confidence leaving home. (G) Sound sleep. (H) Energy. *P < 0.05; **P < 0.001.
Figure 2 CAT component scores in COPD patients exposed to tobacco alone, biomass smoke alone, occupational exposure alone, and other risk factors.