Research Roundup: Effects of Marijuana Use; Orphan Drug Competition

Each week, KHN compiles a selection of recently released health policy studies and briefs.

Urban Institute:
Medicaid Work Requirements In Arkansas  

This report assesses the size and composition of Medicaid enrollees in Arkansas who could be affected by the program’s new work and community engagement requirements. …Given the exemptions Arkansas plans to implement, we find that in 2018, 86 percent of nonelderly, nondisabled adult Medicaid enrollees would likely be exempt from work requirements, a share that includes adults ages 19 to 29. (Gangopadhyaya, Kenney, Burton et. al., 5/24)

Effect Of Vitamin D Supplementation On Recurrent Wheezing In Black Infants Who Were Born Preterm: The D-Wheeze Randomized Clinical Trial 

Black infants born preterm face high rates of recurrent wheezing throughout infancy. Vitamin D supplementation has the potential to positively or negatively affect wheezing through modulation of the pulmonary and immune systems. …Among black infants born preterm, sustained supplementation with vitamin D, compared with diet-limited supplementation, resulted in a reduced risk of recurrent wheezing by 12 months’ adjusted age. (Hibbs, Ross, Kerns et. al., 5/22)

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