Citation
Jeffrey, M. L.; Brett, C.; Hewitt, J. K.; Hopfer, C. J.; & McQueen, M. B. (2008). Marijuana use and BMI in the Add Health sample. Behavior Genetics. vol. 38 (6) pp. 636Abstract
The relationship between marijuana use and BMI is examined in TheNational Longitudinal Study of Adolescent Health. At Wave 1 (mean
age 16.2,N=18496) and Wave 2 (mean age of 16.7,N=13641) neither use of marijuana, nor the frequency of marijuana use is related to BMI or obesity (BMI of 30 or higher). At Wave 3 (mean age 22.5, N =
13554) both the use of marijuana and the frequency of marijuana use are related to BMI and obesity. At Wave 3 marijuana users are on average 0.90 BMI units below non-marijuana users (t =–8.27,P .0001), while controlling for sex, age, and nicotine use. Each use of marijuana in the 30 days prior to testing predicts a 0.03 unit decrease in BMI (t=-5.19,P .0001), controlling for the same variables. Use of marijuana is inversely associated with obesity (odds ratio of 0.711, 95% CI 0.643–0.787). BMI increases between Wave 2 and Wave 3, but each additional use of marijuana in the 30 day period prior to Wave 3 over the 30 day period prior to Wave 2 predicts a 0.02 decrease in the rise of BMI compared to the mean rise from Wave 2 to Wave 3.
URL
http://dx.doi.org/10.1007%2Fs10519-008-9228-xKeyword(s)
GeneticReference Type
Journal ArticleJournal Title
Behavior GeneticsAuthor(s)
Jeffrey, M. L.Brett, C.
Hewitt, J. K.
Hopfer, C. J.
McQueen, M. B.