Measuring principal substance of abuse in comorbid patients for clinical research

Dual Diagnosis and Application Problems in the Use of the Construct: A Review of Literature

Dual diagnosis (DD) commonly identifies a condition of co-occurrence of substance use disorders and psychological or psychiatric disorders. Many scholars have tried to explain this phenomenon, yet no agreement has been found: methodologies of intervention and treatment are numerous, but there is no uniformity of methodology. Our work aims to search critical aspects linked to this fragmented framework, to facilitate those who use the construct of DD. We have elaborated a literary review focused on specific critical contributions to the theoretical and methodological complexity of the construct. Scopus, PubMed, and Scholar were used as search engines. Our research reveals significant problems around several thematic areas: Defining, Operative and Treatment; Economic and Policy; Pharmacological Approach; and Patients' Perspectives Issues. Consistent issues are discussed with regard to DD: innovation should start from its limits. Future research should look for alternative theoretical formulations and consequent intervention experiences to provide new perspectives.

The feasibility of telephone follow-up interviews for monitoring treatment outcomes of Australian residential drug and alcohol treatment programs

BACKGROUND

Telephone follow-up interviewing is one method of monitoring treatment outcomes of individuals involved in drug and alcohol treatment programs. The present study is the first to examine the feasibility and generalizability of data obtained from telephone follow-up interviews after drug and alcohol treatment in Australia.

METHODS

Participants attended 1 of 8 Salvation Army Recovery Service Centres where staff administered outcome measures at intake. Three-month postdischarge telephone follow-up interviews were conducted by researchers from the Illawarra Institute for Mental Health, University of Wollongong.

RESULTS

A sample of 700 clients was obtained for follow-up (582 males; 118 females). A 51% follow-up rate was achieved at a cost of US$82 per completed interview. No significant differences in baseline characteristics between responding and nonresponding participants were found.

CONCLUSIONS

Overall, the telephone methodology was shown to be feasible and relatively inexpensive. However, the introduction of outcome measures at the service level in parallel with follow-up data collection procedures complicated the collection of response data. The burden of introducing outcome measures in residential services may be reduced by utilizing a phased implementation strategy.

Latent class analysis of polysubstance use, sexual risk behaviors, and infectious disease among South African drug users

BACKGROUND

HIV transmission risk among non-injection drug users is high due to the co-occurrence of drug use and sexual risk behaviors. The purpose of the current study was to identify patterns of drug use among polysubstance users within a high HIV prevalence population.

METHODS

The study sample included 409 substance users from the Pretoria region of South Africa. Substances used by 20% or more the sample included: cigarettes, alcohol, marijuana and heroin in combination, marijuana and cigarettes in combination, and crack cocaine. Latent class analysis was used to identify patterns of polysubstance use based on types of drugs used. Multivariate logistic regression analyses compared classes on demographics, sexual risk behavior, and disease status.

RESULTS

Four classes of substance use were found: MJ+Cig (40.8%), MJ+Her (30.8%), Crack (24.7%), and Low Use (3.7%). The MJ+Cig class was 6.7 times more likely to use alcohol and 3 times more likely to use drugs before/during sex with steady partners than the Crack class. The MJ+Cig class was 16 times more likely to use alcohol before/during sex with steady partners than the MJ+Her class. The Crack class was 6.1 times more likely to engage in transactional sex and less likely to use drugs before/during steady sex than the MJ+Her class.

CONCLUSIONS

Findings illustrate patterns of drug use among a polysubstance using population that differ in sexual risk behavior. Intervention strategies should address substance use, particularly smoking as a route of administration (ROA), and sexual risk behaviors that best fit this high-risk population.

Psychiatric Comorbidity in Patients from the Addictive Disorders Assistance Units of Galicia: The COPSIAD Study

The objective of this study is to assess the prevalence of psychiatric comorbidity in patients under treatment within the addictive disorders assistance units of Galicia (Spain).

MATERIAL AND METHODS

A total of 64 healthcare professionals performed clinical diagnosis of mental disorders (on DSM IV-TR criteria) in 2300 patients treated throughout March 2010 in 21 addictive disorders assistance units.

RESULTS

56.3% of patients with substance abuse/dependency also showed some other mental disorder, 42.2% of patients suffering from at least an Axis I condition and 20.2% from some Axis II condition. Mood and anxiety disorders and borderline and antisocial personality disorders were the most frequent disorders in both axes.

CONCLUSIONS

A high comorbidity was found between mental and substance use disorders (SUD) in patients seen at the addictive disorders assistance units of Galicia.

Screening for bipolar disorder among outpatients with substance use disorders

Background

Comorbidity of bipolar disorder and alcohol or substance abuse/dependence is frequent and has marked negative consequences on the course of the illness and treatment compliance. The objective of this study was to compare the validity of two short instruments aimed at screening bipolar disorders among patients treated for substance use disorders.

Methods

The Mood Disorder Questionnaire (MDQ) and the Hypomania Checklist-32 (HCL-32) were tested with reference to the mood section of the Structured Clinical Interview for DSM-IV axis I disorders (SCID) in 152 patients, recruited in two outpatient clinics providing specialized treatment for alcohol and opiate dependence.

Results

According to the SCID, 33 patients (21.7%) had a diagnosis within the bipolar spectrum (two bipolar I, 21 bipolar II and 10 bipolar not otherwise specified). The HCL-32 was more sensitive (90.9% vs. 66.7%) and the MDQ more specific (38.7% vs. 77.3%) for the whole sample. The MDQ displayed higher sensitivity and specificity in patients treated for alcohol than for opiate dependence, whereas the HCL-32 was highly sensitive but poorly specific in both samples. Both instruments had a positive predictive value under 50%.

Conclusions

Caution is needed when using the MDQ and HCL-32 in patients treated for substance use disorders.

Twelve-step program attendance and polysubstance use: interplay of alcohol and illicit drug use

OBJECTIVE

The primary aim of this study was to advance understanding of the efficacy of 12-step programs by determining the temporal relationships between alcohol and illicit drug use among 12- step program affiliates.

METHOD

A total of 253 early 12-step affiliates without extensive histories of Alcoholics Anonymous (AA) attendance were recruited from substance use treatment and community-based AA. A majority of the sample met criteria for a diagnosis of alcohol dependence, reported lifetime use of illicit drugs, and reported illicit drug use in the 90-day period before recruitment. After informed consent, participants were interviewed at intake and in 3-month increments for 1 year.

RESULTS

Preliminary analyses indicated that 12-step attendance was predictive of reductions in substance use and that such reductions were not moderated by illicit substance use disorder diagnosis or alcohol problem severity. Lagged hierarchical linear models indicated that illicit drug use was a robust predictor of later use of alcohol, although the frequency and intensity of drinking were contingent on whether participants sustained 12-step program affiliation. Alcohol use did not predict later illicit drug use among participants who sustained 12-step program participation.

CONCLUSIONS

Findings suggest that 12-step participation may serve as a protective factor after substance use occurs. Although our results suggest that the initiation of illicit drug use may undermine efforts to achieve and sustain abstinence from alcohol, our findings do not suggest that alcohol use necessarily mobilizes relapse across different substances among 12-step program affiliates.