Breaking News
March 24, 2018 - Researchers explore ways to help older adults taper off and stop using sedatives
March 24, 2018 - Back pain being mismanaged globally
March 24, 2018 - Fingerprint test accurately and noninvasively detects heroin, cocaine users
March 24, 2018 - Leading experts to promote cardiovascular health at EuroPrevent 2018
March 24, 2018 - A Role for Rituximab in Lupus?
March 24, 2018 - New osteoarthritis genes discovered
March 24, 2018 - Maternal intake of DHA supplement linked to higher fat-free body mass in children
March 24, 2018 - Royal College of Pathologists‘ bulletin provides summary of Tissue Handling Workshop
March 24, 2018 - Maternal alcohol use early in pregnancy may be risk factor for infant abdominal malformation
March 24, 2018 - Savara Initiates Phase 2a Clinical Study of Molgradex for the Treatment of NTM Lung Infection
March 24, 2018 - Accelerated WBI Should be the Norm for Most Breast Cancers
March 24, 2018 - Experts seek to standardize treatments for childhood rheumatic diseases
March 24, 2018 - Foil-based measuring chip rapidly detects Legionella
March 24, 2018 - Bariatric surgery linked to positive outcomes in very obese adolescents with type 2 diabetes
March 24, 2018 - Are there risks from secondhand marijuana smoke? Early science says yes.
March 24, 2018 - New University of Bath project seeks to make injections safer
March 24, 2018 - Higher-dose RT does not improve survival but reduces recurrence risk for prostate cancer patients
March 24, 2018 - Researchers examine link between knee pain and depression in older adults
March 24, 2018 - FDA Alert: BD Vacutainer Blood Collection Tubes by Becton, Dickinson and Company (BD): Class I Recall
March 24, 2018 - Daytime Sleepiness Linked to Amyloid Accumulation Without Dementia
March 24, 2018 - Energy storehouses in the brain may be source of Alzheimer’s, targets of new therapy
March 24, 2018 - Praising people with autism shows promise for producing more exercise
March 24, 2018 - Using harmless red or infrared light to diagnose breast cancer
March 24, 2018 - Clash over abortion hobbles a health bill. Again. Here’s how.
March 23, 2018 - Virtual nature environment could be new way to recover from stress
March 23, 2018 - New study identifies key cellular mechanisms behind vascular aging in mice
March 23, 2018 - Nightmares Common Among U.S. Troops, But Seldom Reported
March 23, 2018 - Another Record Low for Tuberculosis in U.S.
March 23, 2018 - Changes in the eye connected to a decline in memory
March 23, 2018 - Radiologist creates dramatic teaching tool using power of VR
March 23, 2018 - Grilled meat could be raising the risk of hypertension finds study
March 23, 2018 - Mutations found in bassoon gene may help explain cause of rare brain disorder
March 23, 2018 - Childhood Brain Injuries May be Linked to ADHD Years Later
March 23, 2018 - Why treating addiction with medication should be carefully considered
March 23, 2018 - Researchers make key discovery about cellular pathway linked to myriad of diseases
March 23, 2018 - Researchers uncover cause of rare childhood neurodegenerative disease
March 23, 2018 - Measles infection in early childhood could contribute to later COPD
March 23, 2018 - Opioid painkiller is top prescription in 11 states
March 23, 2018 - Sienna Biopharmaceuticals Announces First Patient Dosed In Proof-of-Concept Trial of Topical By Design™ JAK Inhibitor SNA-125 for Atopic Dermatitis
March 23, 2018 - In Teen Girls, Neural Patterns May Drive Emotional Resilience
March 23, 2018 - Gene-based test for urine detects, monitors bladder cancer
March 23, 2018 - BD to introduce new digital solution for IV chemotherapy administration process at EAHP 2018
March 23, 2018 - New computational method helps to identify tumor cell mutations with greater accuracy
March 23, 2018 - Researchers identify potential obesity treatment in freezing hunger-signaling nerve
March 23, 2018 - Wales participates in the 100,000 Genomes Project
March 23, 2018 - 24-Hr Paging Cuts ED Visits for Kids with Endocrine Issues
March 23, 2018 - The brain learns completely differently than we’ve assumed since the 20th century
March 23, 2018 - Less nutritious diet mainly contributes to Type 2 diabetes among U.S.-based South Asians
March 23, 2018 - Stony Brook Medicine expert provides tips for healthy diet to decrease cancer risk
March 23, 2018 - New findings could have revolutionary impact on quality of life of older people
March 23, 2018 - Restoring enzyme may help reverse effects of vascular aging, study shows
March 23, 2018 - Protein profiling reveals new prostate cancer mechanisms
March 23, 2018 - Depression may be linked to increased risk of atrial fibrillation
March 23, 2018 - FDA Takes Aim at Flavored Tobacco
March 23, 2018 - SMART Strategy Lowers Asthma Exacerbation Risk
March 23, 2018 - Cold open water plunge provides instant pain relief
March 23, 2018 - Portable and wearable technology supports future of military medical devices
March 23, 2018 - Patients with vascular malformations have poor health-related quality of life
March 23, 2018 - Researchers develop unique technology to overcome global antibiotic resistance crisis
March 23, 2018 - New DOD grant to support testing of promising therapy for triple-negative breast cancer
March 23, 2018 - Novel vaccine technologies can help better prepare for future infectious disease threats
March 23, 2018 - OncoBreak: Colonoscopy TV; Coverage for Genomic Testing; Care for Caregivers
March 23, 2018 - For some surgeries, nerve blocks mean better outcomes, fewer opioids
March 23, 2018 - Maternal obesity and androgen excess induce sex-specific anxiety in offspring, study suggests
March 23, 2018 - The tale of Theranos and the mysterious fire alarm
March 23, 2018 - USC researchers create algorithm to optimize substance abuse intervention groups
March 23, 2018 - Impulsivity may be associated with greater weight loss during treatment in obese children
March 23, 2018 - CTI BioPharma Announces Publication of Pacritinib Phase 3 PERSIST-2 Clinical Trial in JAMA Oncology
March 23, 2018 - Senate Panel Addresses Native Americans’ Opioid Troubles
March 23, 2018 - Brain connections in schizophrenia
March 23, 2018 - Mental health assessment in health checks can help detect psychologically vulnerable people
March 23, 2018 - New test for urothelial cancers offers less invasive, more accurate detection
March 23, 2018 - Groundbreaking 100,000 Genomes Project achieves important milestone to transform NHS care
March 23, 2018 - Mice getting a new lease of life with anti-aging pills
March 23, 2018 - Obesity kills taste buds and dulls taste sensation finds study
March 23, 2018 - Medical students get less formal education in radiation oncology, study finds
March 23, 2018 - Researchers find investigational compound to treat triple negative breast cancer after brain metastasis
March 23, 2018 - Researchers develop wearable system to monitor electrical activity in the stomach over 24 hours
March 23, 2018 - A Different Opioid Crisis | Medpage Today
March 23, 2018 - PTSD an ongoing fight for generation of Iraq War vets
A quarter of problematic pot users have anxiety disorders, many since childhood

A quarter of problematic pot users have anxiety disorders, many since childhood

image_pdfDownload PDFimage_print
Lead author Sherika Hill, Ph.D., is an adjunct faculty associate at the Duke University School of Medicine. Credit: Duke Health

About a quarter of adults whose marijuana use is problematic in early adulthood have anxiety disorders in childhood and late adolescence, according to new data from Duke Health researchers.

The findings, publishing this week in the November issue of the Journal of the American Academy of Child and Adolescent Psychiatry, also shed light on an estimated 4 percent of adults who endured childhood maltreatment and peer bullying without resorting to chronic marijuana abuse, only to develop problems with the drug between the ages of 26 and 30.

“Given that more states may be moving towards legalization of cannabis for medicinal and recreational purposes, this study raises attention about what we anticipate will be the fastest growing demographic of users—adults,” said lead author Sherika Hill, Ph.D., an adjunct faculty associate at the Duke University School of Medicine. “A lot of current interventions and policies in the U.S. are aimed at early adolescent users. We have to start thinking about how we are going to address problematic use that may arise in a growing population of older users.”

The findings are based on data from 1,229 participants in the Great Smoky Mountains Study, a long-term study of residents in 11 counties near the Appalachian Mountains in western North Carolina, where Hispanics and Latinos are underrepresented and Native Americans are overrepresented compared to the rest of the U.S.

A cohort of children in the study were enrolled as young as age 9 and have now reached their 30s. From 1993 to 2015, researchers tracked data in numerous areas of interest, including mental health, education, work attainment, and use of drugs and alcohol.

The researchers defined problematic cannabis or marijuana use as daily consumption or a habit that meets diagnostic guidelines for addiction. They tracked participants’ patterns of use from the college years (ages 19-21) into adulthood (ages 26-30).

They found more than three-fourths (76.3 percent) of participants didn’t use or develop a problem with marijuana during this period.

The video will load shortly.

Duke Health researchers tracked a group of children in western NC into adulthood and studied their pot use. Anxiety was a significant risk factor for persistent problematic use. Credit: Duke Health

The remaining quarter developed problems that researchers grouped into three profiles—those with limited problems, persistent problems and delayed problems.

Limited users (13 percent)

  • Limited problematic users had trouble with marijuana either while in school before age 16 or in their late teens and early 20s, but their habits dropped off as they aged.
  • Researchers were somewhat surprised that this group reported the highest levels of family conflict and instability during childhood as compared to others in the study; these factors are often associated with more drug use.
  • “When this group of children left home, they seemed to do better,” Hill said. “They didn’t have as many children at a young age, and they went further in their education when they were 19 to 21 compared to those with persistent and delayed profiles.”

Persistent users (7 percent)

  • This group had trouble with marijuana beginning as young as 9 years old and their chronic use continued into their late 20s and early 30s, the data showed.
  • Large portions of this group had anxiety disorders in both childhood (27 percent) and at ages 19-21 (23 percent).
  • They had the highest rates of psychiatric disorders and involvement in the criminal justice system, and most said the majority of their friends were drug users, too.
  • “This suggests that a focus on mental health and well-being could go a long way to prevent the most problematic use,” Hill said.

Delayed users (4 percent)

  • This was a small but unique group that made it through adolescence and early adulthood without problematic marijuana use, only to become habitual users between ages 26 and 30.
  • Blacks were five times as likely as whites to be delayed problematic users in the late 20s and early 30s after not having trouble with the between the ages 19-21—a peak time for most marijuana users.
  • More than half of delayed users were both bullied by peers and mistreated by caregivers as children, yet also had lower rates of anxiety, alcohol use, and other hard drug use compared to persistent users.
  • “What we don’t yet understand is how childhood maltreatment didn’t prompt earlier problematic use of cannabis between ages 19 and 21—how individuals could be resilient to that kind of adverse experience for so long,” Hill said. “One theory is that they were somewhat protected by having fewer peers in late adolescence who were substance users, but this is one of the questions we will continue to seek answers for.”

Explore further:
Of non-marijuana drug users in the ER, nearly all are problem drug users

More information:
Sherika Hill et al, Predicting Persistent, Limited, and Delayed Problematic Cannabis Use in Early Adulthood: Findings From a Longitudinal Study, Journal of the American Academy of Child & Adolescent Psychiatry (2017). DOI: 10.1016/j.jaac.2017.08.012

Journal reference:
Journal of the American Academy of Child & Adolescent Psychiatry

Provided by:
Duke University Medical Center

Tagged with:

About author

Related Articles