Silver Book Fact
An Internet survey found that 94% of patients with persistent pain taking opioids report at least one major impact on their lives from pain–3 in 4 (77%) report feeling depressed, 70% report an inability to concentrate, 52% report strained relationships, and 46% report a loss of appetite.
Michaelson & Co. LLC D. Voices of Chronic Pain: A national study conducted for American Pain Foudnation. David Michaelson & Company, LLC for the American Pain Foundation; 2006. http://www.davidmichaelsoncompany.com/documents/voices%20of%20chronic%20pain%20report.pdf