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Body mass index and marijuana use.
Matthew Warren1, Kimberly Frost-Pineda, Mark Gold
1College of Medicine, University of Florida, PO Box 100183, Gainesville, FL, 32610, USA. warren@ufl.edu
Journal of Addictive Diseases
|September 28, 2005
Summary
This study found that higher Body Mass Index (BMI) in women correlates with decreased marijuana use. Findings suggest overeating may compete with substance use for brain reward pathways.
Area of Science:
- Medical Science
- Neuroscience
- Public Health
Background:
- Marijuana use is often associated with increased appetite.
- The relationship between marijuana use and obesity remains unclear.
- Understanding substance use patterns in relation to weight is crucial for public health.
Purpose of the Study:
- To investigate the correlation between Body Mass Index (BMI) and marijuana use in females seeking weight management.
- To explore potential inverse relationships between obesity and cannabis consumption.
Main Methods:
- Retrospective chart review of 297 females referred for morbid obesity/weight management over 12 months.
- Data collection included Body Mass Index (BMI) and self-reported past-year marijuana use.
- Linear regression analysis was employed to determine the correlation between BMI categories and marijuana usage rates.
Main Results:
- A significant negative correlation was observed between higher BMI categories and the percentage of marijuana use.
- Marijuana use decreased progressively with increasing BMI: 29% (BMI < 30), 21% (BMI 30-39), 16% (BMI 40-49), and 14% (BMI > 50).
- The linear regression model showed a strong association (R-squared = 0.96, P = 0.0173).
Conclusions:
- Findings suggest an inverse relationship between obesity and marijuana use in the studied female population.
- The results support the hypothesis that overeating may compete with drug and alcohol consumption for shared neural reward pathways.
- Further research is warranted to elucidate the complex interplay between appetite, substance use, and obesity.