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Difference in Hospital Utilization Within the first 12 Months Among Low-Birth-Weight Infants in Medicaid Managed Care Versus Fee-for-Service: a Regression Discontinuity Study

Liu, S.Y.; Lim, S.

Maternal and Child Health Journal 25(9): 1410-1419

2021


ISSN/ISBN: 1573-6628
PMID: 34138454
DOI: 10.1007/s10995-021-03185-5
Accession: 079238786

To examine the effect of Medicaid managed care (MMC) versus Medicaid fee-for-service (FFS) on emergency department (ED) use and hospitalization during the first 6 and 12 months of life among low-birth-weight (LBW) infants. We used the New York City Office of Vital Statistics-Statewide Planning and Research Cooperative System (OVS-SPARCS) dataset to identify 9135 LBW infants born to female Medicaid beneficiaries in New York City from January 2008-March 2012. We applied a robust regression discontinuity framework using a New York State Medicaid policy in effect at that time. This policy automatically enrolled infants born to female Medicaid beneficiaries to Medicaid managed care (MMC) or Medicaid fee-for-service (FFS) based on their birth weight (less than 1200 g vs. 1200-2500 g) during the first 6 months of their lives. LBW infants in MMC had an average 0.16% points higher probability of being hospitalized within the first year of their lives than those in Medicaid FFS (p-value = 0.04). More research is necessary to understand possible differences in healthcare utilization between MMC and FFS participants with high health risks.

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