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Results include 2 of 2 reviews
  • NBER (April 2025) posted a quasi-experimental study of the effects of state Medicaid expansions on the mortality of low-income adults. Despite the study abstract’s claims of a 2.5% reduction in mortality (covered in NY Times and elsewhere), the study found much smaller mortality effects that fell short of statistical significance in its main preregistered analysis.

  • New England Journal of Medicine (June 2024) published an RCT of Communities that Heal, a data-driven program that engaged communities in four states to rapidly deploy evidence-based practices to reduce opioid overdose deaths. This large, high-quality RCT found no discernible impact on opioid overdose deaths over 1 year.