Regardless of disease severity, guideline-concordant treatment is not provided to nearly half of all patients who have stable chronic obstructive pulmonary disease and are treated in the ambulatory care setting, findings from an observational study suggest. The study also indicated that guideline-concordant treatment was more likely to be provided when patients were co-managed by a pulmonologist and a primary care physician. Of 450 patients, 56 percent received guideline-concordant care as outlined by the 2010 Global Initiative for Chronic Obstructive Lung Disease stage-specific recommendations, UTMB’s Dr. Gulshan Sharma reported at the annual meeting of the American College of Chest Physicians.