Inborn errors of metabolism identified via newborn screening: Ten-year incidence data and costs of nutritional interventions for research agenda planning

Bradford L Therrell Jr; Michele A Lloyd-Puryear; Kathryn M Camp; Marie Y Mann

doi:10.1016/j.ymgme.2014.07.009

Inborn errors of metabolism identified via newborn screening: Ten-year incidence data and costs of nutritional interventions for research agenda planning

Mol Genet Metab. 2014 Sep-Oct;113(1-2):14-26. doi: 10.1016/j.ymgme.2014.07.009. Epub 2014 Jul 16.

Authors

Bradford L Therrell Jr¹, Michele A Lloyd-Puryear², Kathryn M Camp³, Marie Y Mann⁴

Affiliations

¹ Department of Pediatrics, University of Texas Health Science Center at San Antonio, San Antonio, TX 78220, USA; National Newborn Screening and Global Resource Center, Austin, TX 78759, USA. Electronic address: therrell@uthscsa.edu.
² Office of Dietary Supplements, National Institutes of Health, Bethesda, MD 20892, USA. Electronic address: mpuryear@acmg.net.
³ Office of Dietary Supplements, National Institutes of Health, Bethesda, MD 20892, USA. Electronic address: campkm@od.nih.gov.
⁴ Maternal and Child Health Bureau, Health Resources and Services Administration, Rockville, MD 20857, USA. Electronic address: mmann@hrsa.gov.

Abstract

Inborn errors of metabolism (IEM) are genetic disorders in which specific enzyme defects interfere with the normal metabolism of exogenous (dietary) or endogenous protein, carbohydrate, or fat. In the U.S., many IEM are detected through state newborn screening (NBS) programs. To inform research on IEM and provide necessary resources for researchers, we are providing: tabulation of ten-year state NBS data for selected IEM detected through NBS; costs of medical foods used in the management of IEM; and an assessment of corporate policies regarding provision of nutritional interventions at no or reduced cost to individuals with IEM. The calculated IEM incidences are based on analyses of ten-year data (2001-2011) from the National Newborn Screening Information System (NNSIS). Costs to feed an average person with an IEM were approximated by determining costs to feed an individual with an IEM, minus the annual expenditure for food for an individual without an IEM. Both the incidence and costs of nutritional intervention data will be useful in future research concerning the impact of IEM disorders on families, individuals and society.

Keywords: Costs; Inborn errors of metabolism; Incidence; Medical foods; Newborn screening; Nutrition.

Publication types

Review

MeSH terms

Health Care Costs
Humans
Incidence
Infant, Newborn
Metabolism, Inborn Errors / diagnosis*
Metabolism, Inborn Errors / diet therapy
Metabolism, Inborn Errors / epidemiology
Neonatal Screening*
Public Health Surveillance
Research Design
United States / epidemiology

Grants and funding

Z99 OD999999/Intramural NIH HHS/United States