Objective. To evaluate patient and physician factors associated with prevention of glucocorticoidinduced osteoporosis and to describe temporal trends in screening and prevention of glucocorticoid-induced osteoporosis.Methods. Using databases from a national managed care organization, enrollees who had been prescribed glucocorticoids (taken for at least 60 days) during an 18-month period were identified. Administrative data from January Conclusion. Despite significant temporal increases in the frequency of screening for and treatment of glucocorticoid-induced osteoporosis, absolute rates remain low, especially among men, African Americans, and patients of certain physician specialties.Glucocorticoids are prescribed widely in medical practice and are used by 0.5-2.5% of adults (1,2). Despite the acknowledged benefits of glucocorticoid treatment in controlling short-term inflammation, concerns about associated adverse events often limit its use. Among the most feared is glucocorticoid-induced osteoporosis. Rates of glucocorticoid-induced osteoporosisassociated fracture may approach 40% in selected populations (3,4), and this condition often results in