Journal of general internal medicine
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Randomized Controlled Trial
Reliability, Validity, and Responsiveness of the DEG, a Three-Item Dyspnea Measure.
Dyspnea is a common and debilitating symptom that affects many different patient populations. Dyspnea measures should assess multiple domains. ⋯ The novel, ultra-brief DEG measure is reliable, valid, and highly responsive. Future studies should evaluate the DEG's sensitivity to interventions, use anchor-based methods to triangulate MCID estimates, and determine its prognostic usefulness among patients with chronic cardiopulmonary and other diseases.