Among 103 Pennsylvania medical cannabis patients followed for 90 days, significant improvements in physical functioning, emotional well-being, and pain were observed within the first month and sustained throughout the study.
Medical cannabis prescribers, state program administrators, and patients considering medical cannabis
103 patients showed improvements within 30 days
What the researchers found
Participants showed significant improvements in physical and social functioning, emotional well-being, and energy within 30 days that persisted through 90 days. Those using inhaled or vaped products showed greater emotional well-being improvement than flower users. Patients using cannabis for opioid use consumed significantly more THC than those treating anxiety, chronic pain, or IBD.
Why it matters
Real-world data from state medical cannabis programs can help bridge the evidence gap between clinical trials and how patients actually experience medical cannabis in practice.
The numbers in context
103 completers over 90 days; significant improvements in physical functioning, social functioning, emotional well-being, and energy within first 30 days; significant decreases in emotional limitations, fatigue, and pain; vapers showed higher emotional well-being gains than flower users
How the study worked
Prospective observational study of 103 Pennsylvania Medical Marijuana Program patients surveyed electronically every 30 days over 90 days about use patterns and quality of life changes.
What this study cannot tell us
No control group; self-selected patients likely positive toward cannabis; short 90-day follow-up; self-reported outcomes without clinical verification; no blinding; potential placebo effect
How to read the evidence
Uncontrolled prospective survey of self-selected medical cannabis patients without blinding or clinical verification of outcomes.
When this study was published
2024 study with 90-day follow-up
The bigger picture
As more states implement medical cannabis programs, understanding patient-reported outcomes across different conditions and consumption methods helps inform both clinical practice and policy.
Questions still open
- Do these quality of life improvements persist beyond 90 days? Why did vape/inhaled users show greater emotional well-being improvement than flower users? What accounts for the higher THC consumption among those treating opioid use?
Common questions
How quickly did patients see benefits from medical cannabis?
Did the method of consumption matter?
Read the original research
Observational Analysis of the Influence of Medical Marijuana Use on Quality of Life in Patients.
Medical cannabis and cannabinoids, 7(1), 44-50
Citation
Kelley, Mark D; Obaid, Marwah; Miller, Edward M; Bowie, Marla; Heeter, Zachary S. (2024). Observational Analysis of the Influence of Medical Marijuana Use on Quality of Life in Patients.. Medical cannabis and cannabinoids, 7(1), 44-50. https://doi.org/10.1159/000536591
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