title: A Statewide Medicaid Enhanced Prenatal and Postnatal Care Program and Infant Injuries.
abstract: To compare infant injuries in the first year of life between Maternal Infant Health Program (MIHP) participants and matched comparison groups. The population was the cohort of Medicaid-insured singleton infants born in 2011 in Michigan who had continuous Medicaid insurance and survived the first year after birth (N = 51,078). Propensity score matching was used to compare participants in MIHP to matched comparison groups from among the nonparticipants. Injury episodes were defined based on Medicaid claims in the first year of life. Matched comparisons were performed using McNemar, Bowker, and Wilcoxon signed rank tests to assess the effects of program participation on infant injuries. Infants of MIHP participants were more likely to have injury episodes (11.7 vs. 10.4 %, p < 0.01) and a higher rate of episodes (126.9/1,000 infants vs. 109.6/1,000) compared to matched nonparticipants. Infants of MIHP participants were more likely to have superficial injuries (4.9 vs. 3.9 %, p < 0.01) and a higher rate of episodes related to superficial injuries (49.7/1,000 vs. 39.6/1,000), which mainly accounted for the difference in injury visits between groups. Similar results were found among those enrolled and risk-screened in the program by the 2nd pregnancy trimester and who received a dosage of at least three additional MIHP contacts when compared to matched nonparticipants. MIHP participants did not experience reductions in infant injuries in the first year of life compared to matched nonparticipants. Possible explanations may include increased health-seeking behavior of the mothers participating in MIHP or improved recognition of infant injuries that warrant medical attention.
authors: Institute for Health Policy, College of Human Medicine, Michigan State University, East Lansing, MI, USA. Cristian.meghea@hc.msu.edu.|Department of Obstetrics, Gynecology, and Reproductive Biology, College of Human Medicine, Michigan State University, East Fee Hall, 965 Fee RD, Room A632B, East Lansing, MI, 48824, USA. Cristian.meghea@hc.msu.edu.|Center for Health Policy and Public Health, College of Political, Administrative and Communication Sciences, Babes-Bolyai University, Cluj-Napoca, Romania. Cristian.meghea@hc.msu.edu.
authors: Cristian I
authors: CI
authors: Meghea
authors: Institute for Health Policy, College of Human Medicine, Michigan State University, East Lansing, MI, USA.
authors: Zhiying
authors: Z
authors: You
authors: Department of Obstetrics, Gynecology, and Reproductive Biology, College of Human Medicine, Michigan State University, East Fee Hall, 965 Fee RD, Room A632B, East Lansing, MI, 48824, USA.|Department of Obstetrics, Gynecology, and Women's Health, Spectrum Health, Grand Rapids, MI, USA.
authors: Lee Anne
authors: LA
authors: Roman
mesh_terms: D002662:Child Health Services; D015331:Cohort Studies; D005260:Female; D006792:House Calls / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D008484:Medicaid; D008824:Michigan; D011181:Postnatal Care / Q000379:methods*; D011247:Pregnancy; D011295:Prenatal Care / Q000379:methods*; D013220:State Health Planning and Development Agencies; D014481:United States
keywords: Enhanced prenatal and postnatal services; Home visitation; Infant injury; Medicaid