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Canna~Fangled Abstracts

Measuring the Impact of Medical Cannabis Law Adoption on Employer-Sponsored Health Insurance Costs: A Difference-in-Difference Analysis, 2003-2022

By September 17, 2024September 23rd, 2024No Comments

. 2024 Sep 17.

doi: 10.1007/s40258-024-00913-0.

Online ahead of print.
Mitchell L Doucette 1, Dipak Hemraj 2, Emily Fisher 2, D Luke Macfarlan 2
Affiliations 

Abstract

Introduction: Recent studies suggest that medical cannabis laws may contribute to a relative reduction in health insurance costs within the individual health insurance markets at the state level. We investigated the effects of adopting a medical cannabis law on the cost of employer-sponsored health insurance in the United States.

Methods: We analyzed state-level data from the Medical Expenditure Panel Survey-Insurance Component (MEPS-IC) Private Sector spanning from 2003 to 2022. The outcomes included log-transformed average total premium costs per employee for single, employee-plus-one, and family coverage plans. We utilized the Sun and Abraham (J Econometr 225(2):175-199, 2021) difference-in-difference (DiD) method, looking at the overall DiD and event-study DiD. Models were adjusted for various state-level demographics and dichotomous policy variables, including whether a state later adopted recreational cannabis, as well as time and unit fixed effects and population weights.

Results: For states that adopted a medical cannabis law, there was a significant decrease in the log average total premium per employee for single (-0.034, standard error [SE] 0.009 (-$238)) and employee-plus-one (-0.025, SE 0.009 (-$348)) coverage plans per year considering the first 10 years of policy change compared with states without such laws. Looking at the last 5 years of policy change, we saw increases in effect size and statistical significance. In-time placebo testing suggested model robustness. Under a hypothetical scenario where all 50 states adopted medical cannabis in 2022, we estimated that employers and employees could collectively save billions on healthcare coverage, potentially reducing healthcare expenditure’s contribution to GDP by 0.65% in 2022.

Conclusion: Adoption of a medical cannabis law may contribute to decreases in healthcare costs. This phenomenon is likely a secondary effect and suggests positive externalities outside of medical cannabis patients.

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References

    1. Boehnke KF, Gangopadhyay S, Clauw DJ, Haffajee RL. Qualifying conditions of medical cannabis license holders in the United States. Health Aff (Millwood). 2019;38(2):295–302. https://doi.org/10.1377/hlthaff.2018.05266 . – DOI – PubMed
    1. Boehnke KF, Dean O, Haffajee R, Hosanagar A. US trends in registration for medical cannabis and reasons for use from 2016–2020: an observational study. Ann Intern Med. 2022;175(7):945–51. https://doi.org/10.7326/M22-0217 . – DOI – PubMed – PMC
    1. State Medical Cannabis Laws. Available at https://www.ncsl.org/health/state-medical-cannabis-laws . Accessed 10 October 2023.
    1. Rosenthal MS, Pipitone RN. Demographics, perceptions, and use of medical marijuana among patients in Florida. Med Cannabis Cannabinoids. 2020;4(1):13–20. https://doi.org/10.1159/000512342 . – DOI – PubMed – PMC
    1. Wang L, Hong PJ, May C, et al. Medical cannabis or cannabinoids for chronic non-cancer and cancer related pain: a systematic review and meta-analysis of randomised clinical trials. BMJ. 2021;374: n1034. https://doi.org/10.1136/bmj.n1034 . – DOI – PubMed

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