Chronic Medication Use in Children Insured by Medicaid: A Multistate Retrospective Cohort Study

Author:

Feinstein James A.1,Hall Matt2,Antoon James W.3,Thomson Joanna4,Flores Juan Carlos5,Goodman Denise M.6,Cohen Eyal7,Azuine Romuladus8,Agrawal Rishi6,Houtrow Amy J.9,DeCourcey Danielle D.10,Kuo Dennis Z.11,Coller Ryan12,Gaur Dipika S.13,Berry Jay G.14

Affiliation:

1. Adult and Child Consortium for Health Outcomes Research and Delivery Science, University of Colorado and Children’s Hospital Colorado, Aurora, Colorado;

2. Children’s Hospital Association, Lenexa, Kansas;

3. College of Medicine, University of Illinois at Chicago, Chicago, Illinois;

4. Division of Hospital Medicine, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center and College of Medicine, University of Cincinnati, Cincinnati, Ohio;

5. Division of Pediatrics, Pontificia Universidad Catolica de Chile, Hospital Sotero del Rio, Santiago, Chile;

6. Ann and Robert H. Lurie Children’s Hospital of Chicago and Feinberg School of Medicine, Northwestern University, Chicago, Illinois;

7. Division of Pediatric Medicine, Department of Pediatrics, The Hospital for Sick Children and University of Toronto, Toronto, Canada;

8. Maternal and Child Health Bureau, US Department of Health and Human Services, Rockville, Maryland;

9. Departments of Physical Medicine and Rehabilitation and Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania;

10. Division of Medical Critical Care, Department of Pediatrics, and

11. Department of Pediatrics, University at Buffalo, Buffalo, New York;

12. School of Medicine and Public Health, University of Wisconsin–Madison, Madison, Wisconsin; and

13. Rush Medical College, Chicago, Illinois

14. Division of General Pediatrics, Department of Medicine, Boston Children’s Hospital and Harvard Medical School, Harvard University, Boston, Massachusetts;

Abstract

BACKGROUND AND OBJECTIVES: Little is known about the use of chronic medications (CMs) in children. We assessed the prevalence of CM use in children and the association of clinical characteristics and health care resource use with the number of CMs used. METHODS: This is a retrospective study of children ages 1 to 18 years using Medicaid from 10 states in 2014 grouped by the annual number of CMs (0, 1, 2–4, 5–9, and ≥10 medications), which are defined as a dispensed ≥30-day prescription with ≥2 dispensed refills. Trends in clinical characteristics and health care use by number of CMs were evaluated with the Cochran-Armitage trend test. RESULTS: Of 4 594 061 subjects, 18.8% used CMs. CM use was 44.4% in children with a complex chronic condition. Across all children, the most common CM therapeutic class was neurologic (28.9%). Among CM users, 48.8% used multiple CMs (40.3% used 2–4, 7.0% used 5–9, and 0.5% used ≥10). The diversity of medications increased with increasing number of CMs: for 1 CM, amphetamine stimulants were most common (29.0%), and for ≥10 CMs, antiepileptics were most common (7.1%). Of $2.3 billion total pharmacy spending, 59.3% was attributable to children dispensed multiple CMs. Increased CM use (0 to ≥10 medications) was associated with increased emergency department use (32.1% to 56.2%) and hospitalization (2.3% to 36.7%). CONCLUSIONS: Nearly 1 in 5 children with Medicaid used CMs. Use of multiple CMs was common and correlated with increased health care use. Understanding CM use in children should be fundamentally important to health care systems when strategizing how to provide safe, evidence-based, and cost-effective pharmaceutical care to children.

Publisher

American Academy of Pediatrics (AAP)

Subject

Pediatrics, Perinatology, and Child Health

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