Validation and performance of the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) among adolescent primary care patients

Supporting Looked After Children and Care Leavers In Decreasing Drugs, and alcohol (SOLID): protocol for a pilot feasibility randomised controlled trial of interventions to decrease risky substance use (drugs and alcohol) and improve mental health of looked after children and care leavers aged 12-20 years

BACKGROUND

Looked after children (LAC) and care leavers are young people who have been placed under the legal care of local authorities, in many instances due to a history of abuse and/or neglect. These young people have a significantly increased risk of substance use and mental disorder compared to their peers. The aim of the SOLID study is to assess the feasibility and acceptability of a definitive three-arm multi-centre randomised controlled trial (RCT) that compares the effectiveness of two interventions that aim to reduce risky drug and alcohol use and improve mental health among LAC aged 12 to 20 years with usual care.

METHODS

All LAC aged 12 to 20 years residing in four local authorities in North East England will be screened by their social worker for risky drug and alcohol use using the CRAFFT (Car, Relax, Alone, Forget, Friends and Trouble) screening tool. Those who score ≥2 will be invited to take part in the trial after further eligibility checks. Informed consent will be taken and baseline data collected. Participants will then be randomised into either (i) Motivational Enhancement Therapy, (ii) Social Behaviour and Network Therapy, or (iii) control-usual care. Follow-up data will be collected 12 months post-baseline. The baseline and follow-up questionnaires will measure self-reported drug and alcohol use, mental health and well-being and health-related quality of life. The follow-up will also collect data on placement stability and self-reported sexual, antisocial and criminal behaviour. Participants will also be asked about the use of health and social services. A detailed process evaluation, using both qualitative and quantitative methods, will be conducted and involve LAC, their carers, social workers and drug and alcohol practitioners.

DISCUSSION

Despite having an increased likelihood of risky substance misuse, there is a lack of evidence outlining specific interventions to decrease drug and alcohol use targeting LAC. This feasibility study will provide the information needed to develop a definitive trial. LAC will benefit from the results of this study and the further development of the interventions.

TRIAL REGISTRATION

ISRCTN80786829.

Identifying substance misuse in primary care: TAPS Tool compared to the WHO ASSIST

BACKGROUND

There is a need for screening and brief assessment instruments to identify primary care patients with substance use problems. This study's aim was to examine the performance of a two-step screening and brief assessment instrument, the TAPS Tool, compared to the WHO ASSIST.

METHODS

Two thousand adult primary care patients recruited from five primary care clinics in four Eastern US states completed the TAPS Tool followed by the ASSIST. The ability of the TAPS Tool to identify moderate- and high-risk use scores on the ASSIST was examined using sensitivity and specificity analyses.

RESULTS

The interviewer and self-administered computer tablet versions of the TAPS Tool generated similar results. The interviewer-administered version (at cut-off of 2), had acceptable sensitivity and specificity for high-risk tobacco (0.90 and 0.77) and alcohol (0.87 and 0.80) use. For illicit drugs, sensitivities were >0.82 and specificities >0.92. The TAPS (at a cut-off of 1) had good sensitivity and specificity for moderate-risk tobacco use (0.83 and 0.97) and alcohol (0.83 and 0.74). Among illicit drugs, sensitivity was acceptable for moderate-risk of marijuana (0.71), while it was low for all other illicit drugs and non-medical use of prescription medications. Specificities were 0.97 or higher for all illicit drugs and prescription medications.

CONCLUSIONS

The TAPS Tool identified adult primary care patients with high-risk ASSIST scores for all substances as well moderate-risk users of tobacco, alcohol, and marijuana, although it did not perform well in identifying patients with moderate-risk use of other drugs or non-medical use of prescription medications. The advantages of the TAPS Tool over the ASSIST are its more limited number of items and focus solely on substance use in the past 3months.

Performance of the Tobacco, Alcohol, Prescription Medication, and Other Substance Use (TAPS) Tool for Substance Use Screening in Primary Care Patients

BACKGROUND

Substance use, a leading cause of illness and death, is underidentified in medical practice.

OBJECTIVE

The Tobacco, Alcohol, Prescription medication, and other Substance use (TAPS) tool was developed to address the need for a brief screening and assessment instrument that includes all commonly used substances and fits into clinical workflows. The goal of this study was to assess the performance of the TAPS tool in primary care patients.

DESIGN

Multisite study, conducted within the National Drug Abuse Treatment Clinical Trials Network, comparing the TAPS tool with a reference standard measure. (ClinicalTrials.gov: NCT02110693).

SETTING

5 adult primary care clinics.

PARTICIPANTS

2000 adult patients consecutively recruited from clinic waiting areas.

MEASUREMENTS

Interviewer- and self-administered versions of the TAPS tool were compared with a reference standard, the modified World Mental Health Composite International Diagnostic Interview (CIDI), which measures problem use and substance use disorder (SUD).

RESULTS

Interviewer- and self-administered versions of the TAPS tool had similar diagnostic characteristics. For identifying problem use (at a cutoff of 1+), the TAPS tool had a sensitivity of 0.93 (95% CI, 0.90 to 0.95) and specificity of 0.87 (CI, 0.85 to 0.89) for tobacco and a sensitivity of 0.74 (CI, 0.70 to 0.78) and specificity of 0.79 (CI, 0.76 to 0.81) for alcohol. For problem use of illicit and prescription drugs, sensitivity ranged from 0.82 (CI, 0.76 to 0.87) for marijuana to 0.63 (CI, 0.47 to 0.78) for sedatives; specificity was 0.93 or higher. For identifying any SUD (at a cutoff of 2+), sensitivity was lower.

LIMITATIONS

The low prevalence of some drug classes led to poor precision in some estimates. Research assistants were not blinded to participants' TAPS tool responses when they administered the CIDI.

CONCLUSION

In a diverse population of adult primary care patients, the TAPS tool detected clinically relevant problem substance use. Although it also may detect tobacco, alcohol, and marijuana use disorders, further refinement is needed before it can be recommended broadly for SUD screening.

PRIMARY FUNDING SOURCE

National Institute on Drug Abuse.

Reduced glutamate in white matter of male neonates exposed to alcohol in utero: a (1)H-magnetic resonance spectroscopy study

In utero exposure to alcohol leads to a spectrum of fetal alcohol related disorders (FASD). However, few studies used have used proton magnetic resonance spectroscopy ((1)H-MRS) to understand how neurochemical disturbances relate to the pathophysiology of FASD. Further, no studies to date have assessed brain metabolites in infants exposed to alcohol in utero. We hypothesize that neonates exposed to alcohol in utero will show decreased glutamatergic activity, pre-emptive of their clinical diagnosis or behavioural phenotype. Single voxel (1)H-MRS data, sampled in parietal white and gray matter, were acquired from 36 neonates exposed to alcohol in utero, and 31 control unexposed healthy neonates, in their 2nd-4th week of life. Metabolites relative to creatine with phosophocreatine and metabolites absolute concentrations using a water reference are reported. Male infants exposed to alcohol in utero were found to have reduced concentration of glutamate with glutamine (Glx) in their parietal white matter (PWM), compared to healthy male infants (p = 0.02). Further, male infants exposed to alcohol in utero had reduced concentration and ratio for glutamate (Glu) in their PWM (p = 0.02), compared to healthy male infants and female infants exposed to alcohol in utero. Female infants showed higher relative Glx and Glu ratios for parietal gray matter (PGM, p < 0.01), compared to male infants. We speculate that the decreased Glx and Glu concentrations in PWM are a result of delayed oligodendrocyte maturation, which may be a result of dysfunctional thyroid hormone activity in males exposed to alcohol in utero. Further study is required to elucidate the relationship between Glx and Glu, thyroid hormone activity, and oligodendrocyte maturation in infants exposure to alcohol in utero.

Design of the NIDA clinical trials network validation study of tobacco, alcohol, prescription medications, and substance use/misuse (TAPS) tool

BACKGROUND

Substance use and its associated use disorders are under-detected and under-treated in primary care. There is a need for a clinically useful brief screening and assessment instrument to identify primary care patients with substance use, sub-threshold substance use disorder (SUD), and SUD to facilitate brief intervention and treatment.

METHODS

We describe the design of the recently completed National Drug Abuse Treatment Clinical Trials Network's tobacco, alcohol, prescription medications, and substance use/misuse screen and brief assessment tool validation study. Study aims included to: develop a 2-stage screening and brief assessment tool (TAPS Tool) to detect substance use, problem use, and SUD among adult primary care patients; examine the validity of both the screen component and the TAPS Tool by comparing them to reference standard screening and assessment measures of no use, problem use, and SUD; and determine the feasibility and acceptability of the self-administration and interviewer-administration of the tool. The design included a pilot testing phase (n=30) and the main study of 2000 adult primary care participants who were randomly assigned in counter-balanced order to have the interviewer-administration or the self-administration of the TAPS Tool followed by the other administration format. Participants' views of feasibility, acceptability and preference for format of self-administration versus interviewer-administration of the TAPS Tool were assessed. Criterion measures of use and DSM-5 SUDs were administered.

DISCUSSION

The TAPS Tool study builds on prior work to develop a 2-stage clinical tool for facilitating the adoption of screening, brief assessment and treatment for SUDs in primary care.

Validation of a substance and alcohol use assessment instrument among orphans and vulnerable children in Zambia using Audio Computer Assisted Self-Interviewing (ACASI)

BACKGROUND

Substance and alcohol misuse is a global problem that increases the risk of HIV infection. This is a concern among orphans and vulnerable children (OVC) in sub-Saharan Africa who may have elevated substance use rates. The Alcohol, Smoking, and Substance Involvement Screening Test (ASSIST) is a reliable and valid instrument of substance use among adults in primary care high-income settings. This study examined psychometric properties of the ASSIST among OVC in Zambia using Audio Computer Assisted Self-Interviewing (ACASI).

METHODS

Baseline data from an ongoing randomized trial of interventions to reduce HIV risk behaviors were analyzed. The analysis included 502 OVC ages 13-17 living in low-income, high-density neighborhoods in Lusaka, Zambia. Internal consistency of the ASSIST was assessed and discriminant validity was measured using items from the Youth Self Report as criterion variables.

RESULTS

Internal reliability was strong with a Cronbach's alpha of ≥0.80 for each of the specific substance scales and total substance involvement. For all substances except tobacco and sedatives, discriminant validity was demonstrated in distinguishing between low risk use and moderate use. Sensitivity and specificity analysis indicated adequate area under the curve across substance types (AUC range: 0.68-0.80). Discrimination between moderate and high risk was demonstrated for alcohol and total substance involvement.

CONCLUSIONS

ASSIST administered via ACASI is a reliable instrument and an appropriate tool for distinguishing between low and hazardous substance use among adolescent OVC populations in sub-Saharan Africa. Additional examination is warranted to determine its ability to measure gradations of severity within hazardous use.

Does screening for and intervening with multiple health compromising behaviours and mental health disorders amongst young people attending primary care improve health outcomes? A systematic review

BACKGROUND

Adolescence and young adulthood are important developmental periods. Screening for health compromising behaviours and mental health disorders during routine primary care visits has the potential to assist clinicians to identify areas of concern and provide appropriate interventions. The objective of this systematic review is to investigate whether screening and subsequent interventions for multiple health compromising behaviours and mental health disorders in primary care settings improves the health outcomes of young people.

METHODS

Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, literature searches were conducted in Medline, PsycINFO, Scopus and Cochrane Library databases (Prospero registration number CRD42013005828) using search terms representing four thematic concepts: primary care, young people, screening, and mental health and health compromising behaviour. To be eligible for inclusion, studies had to: include a measure of health outcome; include at least 75 % of participants aged under 25 years; use a screening tool that assessed more than one health domain; and be conducted within a primary care setting. Risk of bias was assessed using the Quality Rating Scale.

RESULTS

From 5051 articles identified, nine studies fulfilled the inclusion criteria and were reviewed: two randomised controlled trials (RCTs), one pilot RCT, two clustered RCTs, one randomised study with multiple intervention groups and no control group, one cluster RCT with two active arms, one longitudinal study and one pre-post study. Seven studies, including two RCTs and one clustered RCT, found positive changes in substance use, diet, sexual health or risky sexual behaviour, alcohol-related risky behaviour, social stress, stress management, helmet use, sleep and exercise. Of only two studies reporting on harms, one reported a negative health outcome of increased alcohol use.

CONCLUSIONS

There is some evidence that the use of screening and intervention with young people for mental health disorder or health compromising behaviours in clinical settings improves health outcomes. Along with other evidence that young people value discussions of health risks with their providers, these discussions should be part of the routine primary care of young people. Further quality studies are needed to strengthen this evidence.

The future of screening, brief intervention and referral to treatment in adolescent primary care: research directions and dissemination challenges

PURPOSE OF REVIEW

Screening, brief intervention and referral to treatment (SBIRT) offers a practical, integrated model for addressing substance use in primary care settings. This review provides an update of the research on SBIRT for adolescents in primary care, examines current dissemination challenges and suggests future research directions.

RECENT FINDINGS

A number of brief screening tools for adolescents have been developed and tested relative to Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) substance use disorders. Computerized previsit screening promotes standardization and is a more time-efficient alternative to provider interview. The adolescent brief intervention literature is growing, particularly with respect to technology-based tools, but is still limited, with evidence greatest for alcohol, and for motivational enhancement therapy interventions. Increasing SBIRT implementation in pediatric primary care remains a challenge. Using nonphysician behavioral health providers to deliver SBIRT, and embedding a screener and decision support tool in electronic medical record systems are strategies being investigated to promote SBIRT implementation.

SUMMARY

Substance use begins in adolescence, and pediatric SBIRT could help to achieve a population-level reduction of substance use-related harms. With a growing number of available tools, adolescent SBIRT effectiveness and feasibility are increasing, but more studies are needed to grow its evidence base, and elucidate strategies to increase implementation.

Confirmatory factor analysis of the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) in community health center patients

BACKGROUND AND OBJECTIVES

To investigate the factor structure of the Alcohol, Smoking, and Substance Involvement Screening Test (ASSIST).

METHODS

Secondary analysis on an adult primary care sample (N = 2,599).

RESULTS AND DISCUSSION

Factor analysis of the tobacco, alcohol, and cannabis items did not yield an acceptable oblique, three-factor solution, due in part to floor effects and limited variability. A short form comprises three items (past-3-month frequency of use, urge to use, and whether others have expressed concern for use), that showed good psychometrics.

SCIENTIFIC SIGNIFICANCE

Supports the need for further investigation of the ASSIST factor structure and a short form. (Am J Addict 2016;25:259-263).

Excessive substance use among young people consulting family doctors: a cross-sectional study

BACKGROUND

Family doctors can only play a role in the prevention of excessive substance use in young people if those affected are seen in the practice.

OBJECTIVE

To describe the prevalence of excessive substance use among young people consulting family doctors in a European context.

METHODS

As part of a trial of an intervention addressing substance use we collected data from young people consulting 32 family doctors in the French-speaking part of Switzerland. Before the consultation, consecutive patients aged 15-24 years completed a self-administered questionnaire on their general health and substance use. Outcomes were excessive alcohol (defined as ≥1 episode of binge drinking), excessive cannabis (use ≥1/week), regular tobacco (≥1 cigarettes a day) and/or any other substance use in the past 30 days. Prevalence data were computed with 95% confidence intervals (CIs) adjusted for clustering within practices, stratified by age and gender.

RESULTS

Between February 2009 and November 2010, 636 patients were eligible. Participation rate was 93.4% (n=594, 53% female). The prevalence of excessive use in the past 30 days was alcohol 44.9% (95% CI: 37.8-52.1), cannabis 11.1% (95% CI: 8.0-14.1), tobacco 23.4% (95% CI: 19.0-28.1) and any other drug 2.6 (95% CI: 1.4-4.2). Excessive use was higher in males than in females. Except for tobacco prevalence of excessive use was only slightly higher in young adults compared to adolescents.

CONCLUSION

Excessive substance use is frequent among young people consulting family doctors in a European context. Future research should provide guidance about how to best seize this window of opportunity for prevention and early intervention.