Dataset Information

College attendance type and subsequent alcohol and marijuana use in the U.S.

ABSTRACT: BACKGROUND:College attendance is a risk factor for frequent and heavy drinking and marijuana initiation but less is known about the extent to which risk varies by type of college attendance and across age. METHODS:Using panel data of young adults who were high school seniors in 1990-1998 from the Monitoring the Future study (n?=?13,123), we examined the associations between college attendance at age 19/20 (4-year college full-time, other college, and non-attendance) and subsequent alcohol and marijuana use at age 21/22, 25/26, 29/30 and 35. Inverse propensity score weighting was used to balance the three college groups on pre-existing differences when examining associations with substance use outcomes. RESULTS:Compared to non-attendance, attending a 4-year college full-time was associated with significantly greater odds of binge drinking at age 21/22 (aOR?=?1.20) and 25/26 (aOR?=?1.12) and lower odds of alcohol abstinence at age 35 (aOR?=?0.51). Similarly, other college attendance was associated with greater odds of binge drinking at age 21/22 (aOR?=?1.08) and 25/26 (aOR?=?1.04) and lower odds of abstinence at age 35 (aOR?=?0.70). Four-year college full-time attendance was associated with greater odds of marijuana use at age 21/22 (aOR?=?1.07) and 25/26 (aOR?=?1.02) but lower odds at age 29/30 (aOR?=?0.99). Other college attendance was associated with lower odds of marijuana use at age 25/26 (aOR?=?0.98) and 29/30 (aOR?=?0.97). Marijuana use at age 35 did not differ by college attendance. CONCLUSIONS:College attendance may confer elevated risk of substance use post-college. The magnitude and duration of risk vary by type of college attendance and substance.

SUBMITTER: Jang JB

PROVIDER: S-EPMC6923146 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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College attendance type and subsequent alcohol and marijuana use in the U.S.

Jang Joy Bohyun JB Schuler Megan S MS Evans-Polce Rebecca J RJ Patrick Megan E ME

Drug and alcohol dependence 20190922

<h4>Background</h4>College attendance is a risk factor for frequent and heavy drinking and marijuana initiation but less is known about the extent to which risk varies by type of college attendance and across age.<h4>Methods</h4>Using panel data of young adults who were high school seniors in 1990-1998 from the Monitoring the Future study (n = 13,123), we examined the associations between college attendance at age 19/20 (4-year college full-time, other college, and non-attendance) and subsequent ...[more]

PMID: 31585359

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Project description:Marijuana has been reported to have several effects on the male reproductive system. Marijuana has previously been linked to reduced adult testosterone, however, a study in Denmark reported increased testosterone concentrations among marijuana users. This study was performed to estimate the effect of marijuana use on testosterone in U.S. males. Data on serum testosterone, marijuana use, and covariates for 1577 men from the 2011-2012 U.S. National Health and Nutrition Examination Survey (NHANES) were analyzed. Information on marijuana use was collected by a self-administered computer-assisted questionnaire. Serum testosterone was determined using isotope dilution liquid chromatography tandem mass spectrometry. The effects of marijuana use on serum testosterone concentrations were examined by frequency, duration, and recency of use. Adjusted means and 95% confidence intervals (CI) of serum testosterone across levels of marijuana use were estimated using multiple linear regression weighted by the survey weights. The majority (66.2%) of the weighted study population reported ever using marijuana with 26.6% reporting current marijuana use. There was no difference in serum testosterone between ever users (adjusted mean = 3.69 ng/mL, 95% CI: 3.46, 3.93) and never users (adjusted mean = 3.70 ng/mL, 95% CI: 3.45, 3.98) upon multivariable analysis. However, serum testosterone was inversely associated with time since last regular use of marijuana (p-value for trend = 0.02). When restricted to men aged 18-29 years, this relationship strengthened (p-value for trend <0.01), and serum testosterone was also inversely associated with time since last use (p-value for trend <0.01), indicating that recency of use, and not duration or frequency, had the strongest relationship with testosterone levels. Serum testosterone concentrations were higher in men with more recent marijuana use. Studies are needed to determine the extent to which circulating testosterone concentrations mediate the relationship of marijuana use with male reproductive outcomes.

Dataset Information

College attendance type and subsequent alcohol and marijuana use in the U.S.

Publications

College attendance type and subsequent alcohol and marijuana use in the U.S.

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