... AccessAnxiety is associated with diminished exerciseperformance and quality of life in severeemphysema: a cross-sectional studyNicholas D Giardino1,3*, Jeffrey L Curtis2,4, Adin-Cristian Andrei2, ... variance in functional status and qualityof life associated with COPD is not explained by mea-sures of pulmonary physiology. Psychological factorsmay play in important role in determining the ... mutually exclusive, mayexplain the link between anxiety and functional impair-ment in patients with COPD. First, anxiety may increasedisability in COPD by increasing vigilance for, and amplifi-cation...