Prenatal cocaine exposure led to earlier cannabis use, which mediated higher anxiety in young adults
Adults prenatally exposed to cocaine started using cannabis younger, and this earlier onset mediated the relationship between prenatal exposure and adult anxiety and cannabis use severity.
Quick Facts
What This Study Found
Individuals with prenatal cocaine exposure used cannabis at younger ages, had greater cannabis use severity, and showed higher impulsivity, state anxiety, and alexithymia. Cannabis use age-of-onset mediated the relationship between prenatal cocaine exposure and both state anxiety and cannabis severity in adulthood.
Key Numbers
Prenatal cocaine-exposed group: younger cannabis onset, greater severity, higher impulsivity, state anxiety, alexithymia. Cannabis onset age mediated prenatal exposure to anxiety and cannabis severity.
How They Did This
Longitudinal cohort study of emerging adults followed since birth, comparing those with and without prenatal cocaine exposure on substance use and psychological measures.
Why This Research Matters
This traces a pathway from prenatal drug exposure through adolescent cannabis use to adult mental health problems, identifying cannabis onset age as a specific intervention target.
The Bigger Picture
Prenatal substance exposure creates vulnerabilities that cascade through development. Cannabis onset age is not just a risk behavior but a mechanistic link from prenatal adversity to adult psychopathology.
What This Study Doesn't Tell Us
Cannot fully separate prenatal cocaine exposure from postnatal environments. Self-reported cannabis use. Mediation analysis cannot prove causal pathways.
Questions This Raises
- ?Would delaying cannabis onset in prenatally exposed youth reduce adult anxiety?
- ?Are there biomarkers that could identify prenatally exposed individuals at highest risk?
Trust & Context
- Key Stat:
- cannabis use age-of-onset mediated the relationship between prenatal cocaine exposure and adult anxiety and cannabis severity
- Evidence Grade:
- Longitudinal birth cohort provides temporal ordering, but mediation analysis in observational data cannot establish causation.
- Study Age:
- 2024 publication.
- Original Title:
- Relationships Between Prenatal Cocaine Exposure, Cannabis-Use Onset and Emotional and Related Characteristics in Young/Emerging Adults.
- Published In:
- Substance use & misuse, 59(3), 388-397 (2024)
- Authors:
- Morie, Kristen P, Zhai, Zu Wei(2), Crowley, Michael J, Potenza, Marc N, Mayes, Linda C
- Database ID:
- RTHC-05568
Evidence Hierarchy
Follows a group of people over time to track how outcomes develop.
What do these levels mean? →Frequently Asked Questions
Does prenatal cocaine exposure lead to cannabis use?
Prenatally exposed individuals started cannabis younger and developed more severe use, though postnatal environmental factors may also contribute.
What is alexithymia?
Difficulty identifying and describing one's own emotions. It was elevated in the prenatally exposed group and associated with earlier cannabis onset.
Read More on RethinkTHC
Cite This Study
https://rethinkthc.com/research/RTHC-05568APA
Morie, Kristen P; Zhai, Zu Wei; Crowley, Michael J; Potenza, Marc N; Mayes, Linda C. (2024). Relationships Between Prenatal Cocaine Exposure, Cannabis-Use Onset and Emotional and Related Characteristics in Young/Emerging Adults.. Substance use & misuse, 59(3), 388-397. https://doi.org/10.1080/10826084.2023.2275558
MLA
Morie, Kristen P, et al. "Relationships Between Prenatal Cocaine Exposure, Cannabis-Use Onset and Emotional and Related Characteristics in Young/Emerging Adults.." Substance use & misuse, 2024. https://doi.org/10.1080/10826084.2023.2275558
RethinkTHC
RethinkTHC Research Database. "Relationships Between Prenatal Cocaine Exposure, Cannabis-Us..." RTHC-05568. Retrieved from https://rethinkthc.com/research/morie-2024-relationships-between-prenatal-cocaine
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.