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World J Diabetes. Dec 15, 2014; 5(6): 945-950
Published online Dec 15, 2014. doi: 10.4239/wjd.v5.i6.945
Published online Dec 15, 2014. doi: 10.4239/wjd.v5.i6.945
Risk factors for cost-related medication non-adherence among older patients with diabetes
James X Zhang, Jhee U Lee, David O Meltzer, Section of Hospital Medicine, Department of Medicine, the University of Chicago, Chicago, IL 60637, United States
David O Meltzer, Department of Economics, the University of Chicago, Chicago, IL 60637, United States
David O Meltzer, Harris School of Public Policy, the University of Chicago, Chicago, IL 60637, United States
Author contributions: All the authors contributed to this work.
Correspondence to: James X Zhang, PhD, MS, Section of Hospital Medicine, Department of Medicine, the University of Chicago, 5841 S. Maryland Ave., MC 5000, Chicago, IL 60637, United States. xzhang1@medicine.bsd.uchicago.edu
Telephone: +1-773-8341631
Received: June 3, 2014
Revised: July 16, 2014
Accepted: September 6, 2014
Published online: December 15, 2014
Revised: July 16, 2014
Accepted: September 6, 2014
Published online: December 15, 2014
Core Tip
Core tip: Using a nationally representative date set, this study explores a wide range of risk factors influencing cost-related medication non-adherence (CRN), which receives increasing recognition of importance in diabetes. The authors found that age less than 65, lack of prescription drug insurance coverage, increased numbers of hospitalizations, and greater functional limitations were associated with higher likelihood of CRN among diabetic patients, while nursing home residence decreased risk. Together, these results suggest that expanding prescription coverage to uninsured, sicker, and community-dwelling individuals is likely to produce the largest decreases in CRN.