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. 2010 Mar;65(3):229-34.
doi: 10.1136/thx.2009.126201.

Influence of anxiety on health outcomes in COPD

Mark D Eisner  1 , Paul D Blanc, Edward H Yelin, Patricia P Katz, Gabriela Sanchez, Carlos Iribarren, Theodore A Omachi
Affiliations

Influence of anxiety on health outcomes in COPD

Mark D Eisner et al. Thorax. 2010 Mar.

Abstract

Background: Psychological functioning is an important determinant of health outcomes in chronic lung disease. To better define the role of anxiety in chronic obstructive pulmonary disease (COPD), a study was conducted of the inter-relations between anxiety and COPD in a large cohort of subjects with COPD and a matched control group.

Methods: Data were used from the FLOW (Function, Living, Outcomes, and Work) cohort of patients with COPD (n=1202) and matched controls without COPD (n=302). Anxiety was measured using the Anxiety subscale of the Hospital Anxiety and Depression Scale.

Results: COPD was associated with a greater risk of anxiety in multivariable analysis (OR 1.85; 95% CI 1.072 to 3.18). Among patients with COPD, anxiety was related to poorer health outcomes including worse submaximal exercise performance (less distance walked during the 6-min walk test: -66.3 feet for anxious vs non-anxious groups; 95% CI -127.3 to -5.36) and a greater risk of self-reported functional limitations (OR 2.41; 95% CI 1.71 to 3.41). Subjects with COPD with anxiety had a higher longitudinal risk of COPD exacerbation in Cox proportional hazards analysis after controlling for covariates (HR 1.39; 95% CI 1.007 to 1.90).

Conclusion: COPD is associated with a higher risk of anxiety. Once anxiety develops among patients with COPD, it is related to poorer health outcomes. Further research is needed to determine whether systematic screening and treatment of anxiety in COPD will improve health outcomes and prevent functional decline and disability.

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Conflict of interest statement

Competing Interest: none to declare

Figures

Figure 1
Figure 1
Prevalence of mild, moderate, and severe anxiety in COPD and referents. The overall prevalence of anxiety is 15% and 6% among persons COPD and referents. The bars show the proportion of anxious patients in the mild (8-10 points), moderate (11-14 points), and severe (15-21 points) categories in subjects with COPD (green bars) and referents (blue bars). In each category, the likelihood of anxiety was higher in the COPD group (p=0.0001).
Figure 2
Figure 2
Anxiety and the risk of COPD exacerbation requiring emergency health care utilization. Red line = subjects with anxiety. Blue line = subjects without anxiety. Log-rank test p=0.017 for difference between the two groups.
See this image and copyright information in PMC

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