The association between maternal and paternal substance use and child substance use, internalizing and externalizing problems: a systematic review and meta-analysis

Amygdala volume and depression symptoms in young adolescents who use cannabis

INTRODUCTION

Both cannabis use and depressive symptomology increase in prevalence throughout adolescence. Concurrently, the brain is undergoing neurodevelopment in important limbic regions, such as the amygdala. Prior research indicates the amygdala may also be related to cannabis use and depressive symptoms. We aimed to investigate the effects of adolescent cannabis use on amygdala volumes as well as the interaction of cannabis use and amygdala morphometry on depressive symptoms in youth.

METHOD

Two-hundred-twenty-four participants (ages 12-15), balanced by sex assigned at birth, were selected from a sub-sample of the Adolescent Brain Cognitive Development (ABCD) Study based on hair toxicology and self-report measures of cannabis use. Participants positive for cannabinoids in hair and/or self-reported cannabis use were demographically matched to youth with no self-reported or confirmed cannabis use. The guardians of these youth reported depression symptoms on the Child Behavioral Checklist. Linear mixed effect models were run investigating cannabis use group on amygdala volumes bilaterally, controlling for whole brain volume and random effects of scanner type. Additional analyses examined cannabis group status and bilateral amygdala volume on depression symptoms.

RESULTS

Cannabis use was not significantly associated with amygdala volume but was associated with increased depressive symptoms (p<0.01). Cannabis group interacted with amygdala volume, such that individuals with smaller volumes had increased depressive symptoms within the cannabis group (p's<0.01-0.02).

CONCLUSION

Aberrations in amygdala volume based on cannabis use were not found in early adolescence; however, more depressive symptoms were related to cannabis group. Youth who use cannabis and have smaller amygdala volumes were at increased risk for depressive symptomology, suggesting potential neurovulnerabilities to cannabis use.

Associations between child maltreatment and hospital admissions for alcohol and other substance use-related disorders up to 40 years of age: Results from the Childhood Adversity and Lifetime Morbidity study

BACKGROUND AND AIMS

Evidence on the associations between child maltreatment (CM), alcohol use disorders (AUDs) and other substance use disorders (SUDs) comes largely from retrospective studies. These rely on self-reported data, which may be impacted by recall bias. Using prospective CM reports to statutory agencies, we measured associations between CM notifications and inpatient admissions for AUDs and SUDs up to 40 years of age.

DESIGN, SETTING AND PARTICIPANTS

Observational study linking administrative health data from Queensland, Australia to prospective birth cohort data comprising both agency-reported and substantiated notifications of CM.

MEASUREMENTS

Outcomes were inpatient admissions for AUDs and SUDs based on ICD-10-Australian modification (AM)-coded primary diagnoses. Unadjusted and adjusted logistic regression analyses were undertaken.

FINDINGS

Ten per cent (n = 609) of the cohort had a history of agency-reported or substantiated CM notifications before age 15. These individuals had higher adjusted odds of being admitted for AUDs and SUDs. For AUDs, the adjusted odds of inpatient admission were 2.86 [95% confidence interval (CI) = 1.73-4.74] greater where there was any previous agency-reported CM and 3.38 (95% CI = 1.94-5.89) greater where there was any previous substantiated CM. For SUDs, the adjusted odds of inpatient admission were 3.34 (95% CI = 2.42-4.61) greater where there was any previous agency-reported CM and 2.98 (95% CI = 2.04-4.36) greater where there was any previous substantiated CM.

CONCLUSIONS

People with a history of child maltreatment appear to have significantly higher odds of inpatient admissions for alcohol use disorders and other substance use disorders up to 40 years of age compared to people with no history of child maltreatment.

"They had clothes on their back and they had food in their stomach, but they didn't have me": The contribution of parental mental health problems, substance use, and domestic violence and abuse on young people and parents

BACKGROUND

The parental risk factors of mental health problems, substance use, and domestic violence and abuse each individually negatively impacts children's health and developmental outcomes. Few studies have considered the lived experience and support needs of parents and children in the real-world situation where these common risks cluster.

OBJECTIVE

This study explores parents' and young people's lived experiences of the clustering of parental mental health problems, parental substance use, and domestic violence and abuse.

METHODS

Semi-structured interviews were conducted with 18 mothers, 6 fathers, and 7 young people with experiences of these parental risk factors. Transcribed interviews were analysed using reflexive thematic analysis.

RESULTS

Four themes were developed, 1) cumulative adversity, 2) the impact of syndemic risk, 3) families navigating risk, and 4) family support. Parents and young people described family situations of stress wherein they experienced cumulative impact of multiple parental risk factors. Parents sought to navigate stressors and parent in positive ways under challenging conditions, often impeded by their own childhood trauma and diminished confidence. Parents and young people spoke of the need for, and benefits of having, support; both as a family and as individuals, to successfully address this trio of parental risks and the related impact.

CONCLUSIONS

This study highlights the high level of stress families experience and the efforts they go to mitigate risk. Services and interventions need to reflect the complexity of multiple needs and consider both the whole family and individuals when providing support.

Associations Between Family History of Alcohol and/or Substance Use Problems and Frontal Cortical Development From 9 to 13 Years of Age: A Longitudinal Analysis of the ABCD Study

Background

Previous investigations that have examined associations between family history (FH) of alcohol/substance use and adolescent brain development have been primarily cross-sectional. Here, leveraging a large population-based sample of youths, we characterized frontal cortical trajectories among 9- to 13-year-olds with (FH+) versus without (FH-) an FH and examined sex as a potential moderator.

Methods

We used data from 9710 participants in the Adolescent Brain Cognitive Development (ABCD) Study (release 4.0). FH+ was defined as having ≥1 biological parents and/or ≥2 biological grandparents with a history of alcohol/substance use problems (n = 2433). Our primary outcome was frontal cortical structural measures obtained at baseline (ages 9-11) and year 2 follow-up (ages 11-13). We used linear mixed-effects models to examine the extent to which FH status qualified frontal cortical development over the age span studied. Finally, we ran additional interactions with sex to test whether observed associations between FH and cortical development differed significantly between sexes.

Results

For FH+ (vs. FH-) youths, we observed increased cortical thinning from 9 to 13 years across the frontal cortex as a whole. When we probed for sex differences, we observed significant declines in frontal cortical thickness among boys but not girls from ages 9 to 13 years. No associations were observed between FH and frontal cortical surface area or volume.

Conclusions

Having a FH+ is associated with more rapid thinning of the frontal cortex across ages 9 to 13, with this effect driven primarily by male participants. Future studies will need to test whether the observed pattern of accelerated thinning predicts future substance use outcomes.

Promoting Alcohol Reduction in Non-Treatment Seeking parents (PAReNTS): a pilot feasibility cluster randomized controlled trial of brief alcohol interventions with parents in contact with child safeguarding services

Many parents who come into contact with early help and children's social care services are risky drinkers. This study aimed to investigate the feasibility and acceptability of conducting a trial of brief alcohol interventions within this setting. We conducted a three-arm pilot feasibility cluster randomised controlled trial in the North-East of England. The additive interventions were: i) screening and a healthy lifestyle leaflet (control); ii) brief advice; iii) extended brief intervention. The trial was later reduced to two-arm due to the extended brief intervention being infeasible. Of the 1769 parents that were approached, 429 consented to be screened (24%), the majority were eligible to participate (n = 415; 97%), 147 of which (35%) scored ≥5 on the AUDIT-C screening tool. There were 108 parents (74%) who consented to participate in the trial (n = 50 control; n = 58 brief advice). Follow-up rates at 6 and 12-months were 61% and 43%. The TLFB30 was found to be a suitable tool to measure the primary outcome of heavy episodic drinking. Qualitative data showed that parents and practitioners largely found trial procedures to be acceptable, however, care should be taken when discussing alcohol risk with parents in this setting. Most of the a-priori success criteria were met in this pilot feasibility trial. The findings suggest that it may be feasible to conduct a two-arm randomised controlled trial of brief alcohol interventions to parents in contact with early help and social care. The TLFB30 was found to be a suitable tool to measure the primary outcome of heavy episodic drinking.

'The Addiction Was Making Things Harder for My Mental Health': A Qualitative Exploration of the Views of Adults and Adolescents Accessing a Substance Misuse Treatment Service

The relationship between substance use and mental health is complex, and both constitute a global public health burden. In the UK, the estimated annual financial costs of alcohol-related harm and illicit drug use are GBP 21.5 billion and GBP 10.7 billion, respectively. This issue is magnified in the North East of England, where treatment access is low and a large proportion of individuals experience socioeconomic deprivation. The present study aimed to explore the experiences of adults and adolescents accessing a substance misuse treatment service in the North East, in order to inform policy makers, commissioners, and providers of substance misuse treatment and prevention. Semi-structured qualitative interviews were conducted with an opportunistic sample of n = 15 adult participants (aged 18 years and over) and n = 10 adolescent participants (aged between 13 and 17 years). Interviews were audio-recorded, transcribed, anonymised, and analysed thematically. Five key themes were identified: (1) initiation of substance use, (2) early life experiences, (3) the bi-directional relationship of mental health and substance use, (4) cessation of substance use, and (5) accessing treatment. Future preventative interventions should focus on providing support to individuals who have been exposed to adverse childhood experiences, with treatment provision for individuals experiencing co-occurring mental health and substance use issues taking a more holistic approach.

Paternal and Maternal Problem Drinking and Lifetime Problem Drinking of Their Adult Children

Parents' alcohol use is associated with alcohol use of their adolescent offspring, but does this association extend to the adulthood of the offspring? We examined associations of paternal and maternal problem drinking with lifetime problem drinking of their adult offspring prospectively assessed in a population-based Finnish twin-family cohort (FinnTwin16). Problem drinking (Malmö-modified Michigan Alcoholism Screening Test) was self-reported separately by mothers and fathers when their children were 16. The children reported on an extended lifetime version of the same measure during their mid-twenties (21-28 years) and mid-thirties (31-37 years). 1235 sons and 1461 daughters in mid-twenties and 991 sons and 1278 daughters in mid-thirties had complete data. Correlations between fathers' and their adult children's problem drinking ranged from .12 to .18. For mothers and their adult children, these correlations ranged from .09 to .14. In multivariate models, adjustment for potential confounders had little effect on the observed associations. In this study, parental problem drinking was modestly associated with lifetime problem drinking of their adult children. This association could be detected even when the children had reached the fourth decade of life.