Assessing addiction: concepts and instruments

Compulsory care of individuals with severe substance use disorders and alcohol- and drug-related mortality: A Swedish registry study

AIM

This study used 17 year of Swedish registry data (2003-2019) for 25,125 adults assessed for their severity of substance use to identify the baseline factors predicting the risk of being court-ordered into compulsory care and examine the association between admission to compulsory care and mortality risks due to alcohol- or drug-related causes.

METHODS AND MATERIALS

Addiction Severity Index (ASI) assessment data were linked to register data on demographic characteristics, compulsory care, and alcohol- and drug-related mortality. Cox regression models were used to identify baseline factors predictive of post-assessment admission to compulsory care in the 5 years post-substance use assessment. Discrete-time random-effect logistic regression models were used to examine the association between compulsory care duration and alcohol or drug-related mortality risks. Propensity score matching was used for validation.

RESULTS

The first models identified that younger age, female gender, and ASI composite scores for drug use, mental health and employment were significantly associated with the risk of placement in compulsory care for drugs other than alcohol. Female gender and ASI composite scores for alcohol, drug use and employment were significantly associated with compulsory care treatment for alcohol use. The second models showed that older individuals and men were more likely to die due to alcohol-related causes, while younger individuals and men were more likely to die due to drug-related causes. Length of stay in compulsory care institutions significantly increased the likelihood of dying due to substance use-related causes. Propensity scores analyses confirmed the results.

CONCLUSION

In Sweden, a significant concern is the higher likelihood of women and young individuals to be court-ordered to compulsory care. Although compulsory care is often advocated as a life-saving intervention, our findings do not provide strong support for this claim. On the contrary, our findings show that admission to compulsory care is associated with a higher risk of substance use-related mortality. Factors such as compulsory care often not including any medical or psychological therapy, together with relapse and overdose after discharge, may be possible contributing factors to these findings.

Validity of the ADHD module of the Mini International Neuropsychiatric Interview PLUS for screening of adult ADHD in treatment seeking substance use disorder patients: ADHD screening with MINI-Plus

OBJECTIVE

This study aims to assess the validity of the ADHD module of the Mini-International Neuropsychiatric Interview (MINI-Plus) in patients with substance use disorders (SUD), using the Conners' Adult ADHD Diagnostic Interview for DSM-IV (CAADID) as the external criterion.

METHOD

A cross sectional international multi-center study in 10 countries was conducted in treatment seeking SUD patients. A sample of 1263 patients with both MINI-Plus and CAADID was analyzed to determine the psychometric properties of the MINI-Plus.

RESULTS

According to the CAADID, 179 patients (14.2%) met criteria for adult ADHD, whereas according to the MINI-Plus 227 patients (18.0%) were identified as having adult ADHD. Sensitivity of the MINI-Plus ADHD module was 74%, specificity was 91%, positive predictive value was 60% and negative predictive value was 96%. Kappa was 0.60.

CONCLUSION

The MINI-Plus has acceptable criterion validity for the screening of adult ADHD in treatment seeking SUD patients.

SCIENTIFIC SIGNIFICANCE

On the basis of the results, The MINI-Plus may be used for the screening of ADHD in SUD patients.

Utility of special drive campaign on substance use disorders in hard-to-reach communities in the fast urbanizing town of Solan, India

AIMS

Special drive campaigns on substance use disorders (SUDs) in India are usually organized in educational institutes, non-governmental organizations, or few selected localities. Hard to reach communities of construction, prison, and industrial sites quite often remain uncovered.

MATERIALS AND METHODS

During a month-long special drive in 2019, under a cross-sectional study, we reached these communities of Solan town through awareness camps and incorporated standardized screening tools for evaluating morbidity patterns of SUDs.

RESULTS

Statistically significant relationship existed between 360 participants (90.8% males, 9.2% females; mean age of 33 years) and their educational levels with χ² (1, n = 360) =130.59, P = 0.000. Fagerstrom's scale inferred very high nicotine dependence in 10.6%, 7.9%, and 2.4% of prisoners, industrial workers, and laborers, respectively. Whereas, Fagerstrom scale for smokeless tobacco revealed 31% of significant dependence potential amongst laborers. Alcohol use disorder identification test revealed 28 persons with harmful alcohol dependence. Drug abuse screening test revealed 13.6% of prisoners having moderate level drug abuse potential. The Kruskal-Wallis test showed a statistically significant difference, in levels and potential of substance use in construction, prison, and industrial sites.

CONCLUSION

The study proved the utility of special drives in evaluating SUDs morbidity patterns in hard-to-reach communities.

The association between history of civil commitment for severe substance use and future imprisonment: A Swedish registry study

BACKGROUND

Civil commitment for individuals with severe substance use is fairly common and a part of many treatment systems worldwide. In Sweden, individuals with severe substance use and experience with civil commitment are more likely to use higher levels of alcohol and drugs, to be younger, and be more socially marginalized compared to their counterparts. The study examined whether civil commitments for severe substance use increased the likelihood of imprisonment following the civil commitment.

METHOD

Baseline ASI-data merged with national registry data on prison sentences (2007 through 2016). Cox regression was used to estimate, for a Swedish sample of 12,044 adults assessed for risky substance use, the importance of having a history of civil commitment for severe substance use, controlling for age, gender and baseline assessment of ASI composite scores in seven areas (alcohol, drugs other than alcohol, legal, mental- and physical health, family & social relationships and employment) on the likelihood of future imprisonment.

RESULTS

The regression showed that being a male, those with experience of civil commitment and elevated ASI composite scores for both legal and employment were significantly associated with imprisonment post-civil commitment. Civil commitment for severe substance use showed 1.29 (HR = 1.29, 95% CI: 1.03-1.49, p < 0.001) increased likelihood of imprisonment post-civil commitment.

CONCLUSION

Having been in treatment through civil commitment due to severe substance use was strongly associated with imprisonment post-civil commitment episode. This is concerning since civil commitment is supposed to mediate against the consequences of severe substance use and promote voluntary treatment participation. Those with severe substance use and a history of civil commitment are in need of a well-coordinated and integrated system of extensive aftercare services to reduce the likelihood of imprisonment.

Relationships between patterns of cannabis use, abuse and dependence and recent stimulant use: Evidence from two national surveys in Ireland

Background and objectives

Epidemiological studies show that the use of cannabis is related to the use of other illicit drugs, including stimulants such as cocaine and ecstasy. However, few studies have examined how patterns of cannabis use relate to the use of stimulants. In this research we determined relationships between patterns of cannabis use and recent stimulant use, drawing on data from two large nationally representative surveys. We also explored how frequency of cannabis use relates to stimulant use and whether subjects with a cannabis use disorder (CUD)–defined as cannabis abuse or dependence–are more likely to be recent users of cocaine or ecstasy.

Materials and methods

We analysed data from Ireland’s 2010/11 and 2014/15 National Drug Prevalence Surveys,which recruited 5,134 and 7,005 individuals respectively, aged 15 years and over, living in private households. We included only those people who reported some past cannabis use. Multivariable logistic regression analysis was used to examine associations between patterns of cannabis use and recent stimulant use.

Results

Among survey participants who had used cannabis in the last month, 17.9% reported recent cocaine use, while almost one-quarter (23.6%) reported recent ecstasy use. There was a significant linear relationship between patterns of cannabis use and recent use of cocaine, ecstasy or any stimulant, with last month cannabis users displaying greater odds (OR = 12.03, 95% CI: 8.15–17.78) of having recent stimulant use compared to last year (OR = 4.48, 95% CI: 2.91–6.91) and former (reference) cannabis users. Greater frequency of cannabis use in the last 30 days was also significantly related to the use of stimulants. In addition, results demonstrated an association between CUD and recent use of cocaine or ecstasy (OR = 2.28, 95% CI: 1.55–3.35).

Conclusions

Findings from this study suggest a relationship between patterns and frequency of cannabis use and recent use of stimulants and an association between CUD and stimulant use. As the use of cannabis with stimulants may increase the risk of negative health consequences, education in community and medical settings about polydrug use and its increased risks may be warranted.

Correlates of patterns of cannabis use, abuse and dependence: evidence from two national surveys in Ireland

BACKGROUND

Knowledge of factors relating to patterns of cannabis use is important for informing drug policy. This study determined factors associated with recent and current cannabis use. In addition, we explored factors related to having a cannabis use disorder (CUD)-defined using the Diagnostic and Statistical Manual of Psychiatric Disorders-among current users.

METHODS

We analyzed data from Ireland's 2010-11 and 2014-15 National Drug Prevalence Surveys, which recruited 5134 and 7005 individuals respectively, aged 15 years or more, living in private households. Multinomial logistic regression was used to identify factors associated with recent (last year) and current (last month) cannabis use compared to experiential use. Binary logistic regression was used to determine factors related to CUD among current users.

RESULTS

The weighted prevalence of experiential cannabis use was 18.3%, with 3.0% and 3.3% of participants indicating recent or current use, respectively; 41.3% of current users indicated having a CUD. Factors associated with both recent or current cannabis use included younger age, not being married or cohabiting, having no dependent children and current use of tobacco or alcohol. Male gender, younger age and lower educational levels were significantly related to CUD among current users.

CONCLUSIONS

Males, adolescents/young adults and individuals with lower educational levels are more likely to be current users of cannabis and are at a greater risk of having a CUD. Health professionals should be aware of these factors to improve detection and prevention of CUD.

Relationships between age at first substance use and persistence of cannabis use and cannabis use disorder

Background

From a secondary prevention perspective, it is useful to know who is at greatest risk of progressing from substance initiation to riskier patterns of future use. Therefore, the aim of this study was to determine relationships between age at first use of alcohol, tobacco and cannabis and patterns of cannabis use, frequency of use and whether age of substance use onset is related to having a cannabis use disorder (CUD).

Methods

We analysed data from Ireland’s 2010/11 and 2014/15 National Drug Prevalence Surveys, which recruited 5134 and 7005 individuals respectively, aged 15 years and over, living in private households. We included only those people who reported lifetime cannabis use. Multinomial, linear and binary logistic regression analyses were used to determine relationships between age of substance use onset and patterns of cannabis use, frequency of use and having a CUD.

Results

When compared to former users, the odds of being a current cannabis user were found to be reduced by 11% (OR = 0.89; 95% CI: 0.83, 0.95) and 4% (OR = 0.96; 95% CI: 0.92, 1.00) for each year of delayed alcohol and cannabis use onset, respectively. Among current users, significant inverse linear relationships were noted, with increasing age of first use of tobacco (β = − 0.547; P < .001) and cannabis (β = − 0.634; P < .001) being associated with a decreased frequency of cannabis use within the last 30 days. The odds of having a CUD were found to be reduced by 14% (OR = 0.86; 95% CI: 0.78, 0.94) and 11% (OR = 0.89; 95% CI: 0.82, 0.98) for each year of delayed tobacco and cannabis use onset respectively in analyses which examined survey participants aged 15–34 years.

Conclusions

Among people who report past cannabis use, it is those with a more precocious pattern of early use of substances, including alcohol, and especially tobacco and cannabis, who are more likely to report ongoing, heavy and problematic cannabis use. Secondary prevention initiatives should prioritise people with a pattern of very early onset substance use.

Immigration Status and Substance Use Disorder-related Mortality in Sweden: A National Longitudinal Registry Study

OBJECTIVES

First-generation immigrants, in many countries, are healthier than their native counterparts. This study examined the association between first- and second-generation immigrant status and alcohol- or drugs other than alcohol-related (primarily opioids) mortality for those with risky substance use.

METHODS

A Swedish longitudinal, 2003 to 2017, registry study combined Addiction Severity Index (ASI) assessment data with mortality data (n = 15 601). Due to missing data, the analysis sample for this study was 15 012. Multivariate models tested the relationship between immigration status and drugs other than alcohol or alcohol-related mortality, controlling for demographics and the 7 ASI composite scores (CS).

RESULTS

Age, a higher ASI CS for alcohol, a lower ASI CS family and social relationship, a lower ASI CS for drug use and a higher ASI CS for health significantly predicted mortality because of alcohol-related causes. Higher ASI CS for drugs other than alcohol, employment, and health, age, male sex, and immigration status predicted drugs other than alcohol, related mortality. Individuals born in Nordic countries, excluding Sweden, were 1.76 times more likely to die of drugs other than alcohol compared with their Swedish counterparts. Individuals born outside a Nordic country (most common countries: Iran, Somalia, Iraq, Chile) were 61% less likely to die of drugs other than alcohol compared with their Swedish counterparts. Those with parents born outside Nordic countries were 54% less likely to die of drugs other than alcohol.

DISCUSSION

Research is needed on why people with risky substance use from Nordic countries (not Sweden) residing in Sweden, have higher mortality rates because of drugs other than alcohol (primarily opioids drugs other than alcohol compared with the other population groups in our study). Findings indicate that ASI CSs are strong predictors of future health problems including mortality due to alcohol and other drug-related causes.

Drinking in denial: a cross-sectional analysis of national survey data in Ireland to measure drinkers' awareness of their alcohol use

OBJECTIVES

Ireland has high per capita alcohol consumption and also has high levels of problematic drinking patterns. While it is accepted that patterns of alcohol consumption in Ireland are a cause for concern, it is not clear if Irish people are actually aware of the extent of their hazardous or harmful pattern of drinking. The aim of this study was to determine awareness of drinking pattern in an Irish population using a representative random sample and to identify characteristics associated with self-awareness of hazardous or harmful drinking.

METHODS

We analysed data from Ireland's 2014/2015 Drug Prevalence Survey which recruited a stratified clustered sample of 7005 individuals aged 15 years and over living in private households. Logistic regression analysis was used to determine characteristics associated with self-awareness of hazardous or harmful drinking.

RESULTS

Almost one half of drinkers had a hazardous or harmful pattern of drinking; 38% engaged in monthly risky single occasion drinking (RSOD) and 10.5% met Diagnostic and Statistical Manual version IV (DSM-IV) criteria for alcohol dependence. Of the 2420 respondents who had a hazardous or harmful pattern of drinking, 67% were unaware of this and misclassified themselves as being either a light or moderate drinker who did not engage in RSOD. An adjusted logistic regression model identified that hazardous and harmful drinkers were more likely to be aware of their drinking pattern if they had completed third level education (OR=1.80, 95% CI: 1.30 to 2.49) while older drinkers (aged 65 and over) were less likely to be aware of their drinking pattern (OR=0.30, 95% CI: 0.14 to 0.65). Subjects who engaged in risk taking behaviours such as illicit drug use and gambling were also significantly more likely to be aware of their drinking pattern.

CONCLUSIONS

The results of this study suggest that patterns of alcohol use in Ireland are problematic. Older respondents and those with lower educational attainment are less likely to be aware of their hazardous or harmful drinking pattern. There is also a population of younger, more-educated drinkers who engage in potentially risk-taking behaviours and these subjects are aware of their harmful drinking pattern. Initiatives to reduce overall alcohol consumption and raise awareness around drinking patterns are required.

Reliability of the Addiction Severity Index self-report form (ASI-SR): a self-administered questionnaire based on the Addiction Severity Index composite score domains

Objectives: The Addiction Severity Index (ASI) is a standardized interview used to assess problems associated with substance use. Although widely used, the time required for the interview remains an obstacle to its acceptance in many clinical settings. We examined if a self-administered questionnaire based on the composite score (CS) items, the ASI Self-Report form (ASI-SR), offers a reliable alternative to the ASI in assessing current substance use and related problems.Methods: Participants were 59 treatment seeking individuals entering outpatient programs at the Addiction Psychiatric Clinic at Uppsala University Hospital who were assessed with Swedish versions of the ASI and ASI-SR. Agreement between the ASI interview's CS and ASI-SR's CS was evaluated on the individual basis by intraclass correlation analysis (ICC) and on group level with the Wilcoxon signed rank test. Reliability and internal consistency were evaluated using Cronbach's alpha.Results: For 6 out of 7 CS domains, the ICC for the ASI interview and ASI-SR were good to excellent. Internal consistency was acceptable for 6 out of 7 CS domains on the ASI interview and for 5 out of 7 CS domains on the ASI-SR.Conclusions: The present study suggests that the ASI-SR is a reliable alternative to the ASI interview for assessing current patient functioning and evaluation of problems related to alcohol and drug use.

The Associations between Risky Psychosocial Environment, Substance Addiction Severity and Imprisonment: A Swedish Registry Study

Objective: Both childhood and adult psychosocial stressors have been identified as links to both increased risk for substance use disorder (SUD) and increased risk of imprisonment. The aim of this retrospective study is to identify, for a sample of 14,914 adults who all were assessed for risky substance use or a SUD, the importance of having a history of psychosocial stressors compared to current addiction severity. The analyses control for age, gender and education on the likelihood of future imprisonment. Method: Baseline Addiction Severity Index data (ASI) were merged with national registry data on prison sentences from 2003 to 2016. In the analysis, a Cox regression was used to study the association between independent variables and the likelihood of future imprisonment. Results: In the regression, five variables showed significant association to increased risk of imprisonment: ASI drugs other than alcohol Composite Score (positive relationship), ASI alcohol Composite Score (negative relationship), age (younger), education (lower) and parental problems with drugs other than alcohol. The factor with strongest association with imprisonment was the ASI drugs other than alcohol Composite Score, which showed the highest HR = 10.63 (3.50-32.31) for women and HR = 5.52 (3.77-8.08) for men to predict the likelihood of imprisonment. Discussion: Research is needed on why individuals with history of psychosocial stressors have a higher likelihood of imprisonment compared to their counterparts. Findings indicate that a high ASI Composite Score for drugs other than alcohol are strong predictors of future criminality and criminal justice system involvement.

Sexual Abuse and Future Mental Health Hospitalization in a Swedish National Sample of Men Who Use Opioids

Experiences of trauma, specifically sexual abuse, have been linked to both mental health and substance use disorders. This study used 14 years of Swedish health registry data to select a sample of adult men who reported frequent opioid use and assessed if those with a self-reported history of sexual abuse had a higher likelihood of hospitalization for a mental health disorder.

Carvedilol Among Patients With Heart Failure With a Cocaine-Use Disorder

OBJECTIVES

This study sought to assess the safety of carvedilol therapy among heart failure (HF) patients with a cocaine-use disorder (CUD).

BACKGROUND

Although carvedilol therapy is recommended among certain patients with HF, the safety and efficacy of carvedilol among HF patients with a CUD is unknown.

METHODS

This was a single-center study of hospitalized patients with HF. Cocaine use was self-reported or defined as having a positive urine toxicology. Patients were divided by carvedilol prescription. Subgroup analyses were performed by strata of ejection fraction (EF) ≤40%, 41% to 49%, or ≥50%. Major adverse cardiovascular events (MACE) were defined as cardiovascular mortality and 30-day HF readmission.

RESULTS

From a cohort of 2,578 patients hospitalized with HF in 2011, 503 patients with a CUD were identified, among whom 404 (80%) were prescribed carvedilol, and 99 (20%) were not. Both groups had similar characteristics; however, those prescribed carvedilol had a lower LVEF, heart rate, and N-terminal pro-B-type natriuretic peptide concentrations at admission and on discharge, and more coronary artery disease. Over a median follow-up of 19 months, there were 169 MACEs. The MACE rates were similar between the carvedilol and the non-carvedilol groups (32% vs. 38%, respectively; p = 0.16) and between those with a preserved EF (30% vs. 33%, respectively; p = 0.48) and were lower in patients with a reduced EF taking carvedilol (34% vs. 58%, respectively; p = 0.02). In a multivariate model, carvedilol therapy was associated with lower MACE among patients with HF with a CUD (hazard ratio: 0.67; 95% confidence interval; 0.481 to 0.863).

CONCLUSIONS

Our findings suggest that carvedilol therapy is safe for patients with HF with a CUD and may be effective among those with a reduced EF.

The Clinical Utility of ASRS-v1.1 for Identifying ADHD in Alcoholics Using PRISM as the Reference Standard

Objective: The objective was to assess the clinical utility of the Adult ADHD Self-Report Scale (ASRS-v1.1) in identifying ADHD in alcoholics using the Psychiatric Research Interview for Substance and Mental Disorders (PRISM) as the diagnostic "gold standard." Method: We performed a secondary analysis of data from 379 treatment-seeking alcoholics who completed the ASRS-v1.1 and the ADHD module of the PRISM. Data analysis included descriptive statistics. Results: The prevalence of ADHD was 7.7% (95% CI = [5.4, 10.8]). The positive predictive value (PPV) of the ASRS-v1.1 was 18.1% (95% CI = [12.4, 25.7]) and the negative predictive value (NPV) was 97.6% (95% CI = [94.9, 98.9]). The ASRS-v1.1 demonstrated a sensitivity of 79.3% (95% CI = [61.6, 90.2]) and a specificity of 70.3% (95% CI = [65.3, 74.8]). Conclusion: The ASRS-v1.1 demonstrated acceptable sensitivity and specificity in a sample of treatment-seeking alcoholics when compared with the PRISM as the reference standard for ADHD diagnosis.

Do drinking problems in the past affect current consumption?

Harmful use of alcohol ranks among the top five risk factors for disease, disability and death worldwide. However, not all individuals who consume alcohol throughout life are addicted and our premise is that addiction implies a chain of consumption that produces harmful effects. The objective of this study was to evaluate whether self-assessed past drinking problems - our measure of harmful alcohol consumption - affect the current alcohol consumption patterns. We expected that drinking problems in the past could have a positive effect on current alcohol consumption. Using Portuguese data from the Survey of Health, Ageing and Retirement in Europe (SHARE), we applied an ordered probit model, given the ordered nature of the dependent variable. Our dependent variable measures the current consumption using categories listed in ascending order of alcohol intake frequency (from less than once a month to daily consumption). Our results suggest that harmful alcohol consumption in the past is an important determinant of current alcohol consumption. Self-assessed past drinking problems had a positive effect on the first five lower categories of current alcohol consumption frequency - less than once a month to up to six days a week. Therefore, to reduce non-communicable avoidable diseases related to the use of alcohol, policies should consider the individuals' decisions regarding alcohol consumption during their lifetime, and specific policies should focus on individuals with past drinking problems.

Is Clinical Assessment of Addiction Severity of Individuals with Substance Use Disorder, Using the Addiction Severity Index, A Predictor of Future Inpatient Mental Health Hospitalization? A Nine-Year Registry Study

OBJECTIVE

In Sweden, the Addiction Severity Index (ASI) is the Swedish National Board of Health and Welfare's recommended substance use disorder assessment tool and used routinely for patient intakes. Our study of 213 individuals assessed for substance use disorder with the ASI used nine years of the National Patient Register and examined whether clinical social workers' assessments of addiction severity at baseline were associated with later hospitalizations for mental health disorder (MHD).

METHODS

ASI composite scores and interviewer severity rating were used to measure clients' problems in seven areas (mental health, family and social relationships, employment, alcohol, drug use, health, and legal) at baseline. A stepwise regression method was used to assess the relative importance of ASI composite scores, MHD hospitalization two years prior to baseline, age, and gender for MHD hospitalization seven years post-baseline.

RESULTS

Almost two-thirds of the individuals (63%) were hospitalized at least once for MHD in the seven years post-baseline. At the multivariable level, MHD hospitalization prior to baseline was the strongest predictor of future MHD hospitalization, followed by ASI composite scores for drug use, employment, mental health and, last, male gender.

CONCLUSIONS

A key finding is that higher ASI composite scores for drug use and mental health are predictors of future need for MHD treatment. Future studies will replicate this effort with a national population of individuals with substance use disorder.

Criteria Definitions and Network Relations: The Importance of Criterion Thresholds

Across various structured diagnostic instruments, the criteria used to diagnose alcohol use disorder (AUD) are not assessed consistently. For example, different instruments often pose questions that reflect different thresholds of the underlying symptoms. We consider the criteria for craving and the inability to cut down or stop drinking to demonstrate the influence of using different thresholds for a positive symptom endorsement with respect to the estimated edges of a symptom network. Results indicate that the utilization of these differing thresholds leads to significant differences in edge weights. Generally, higher thresholds relate more strongly to lower prevalence rate criteria, and the reverse for lower thresholds. These findings have implications for reproducibility of effects in symptom networks and their generalization across studies.

Test Performance Variation Between Settings and Populations

The present paper is the third in a series on the evaluation of new tests designed to detect the disordered gambler. The present paper has two objectives. First, the observed variation in test performance between settings and populations is described in general terms and an explanation of the observed variation is presented in terms of what is referred to as spectrum effects. Second the expected variation in test performance between settings and populations is illustrated with several examples and the implications emphasized for the purpose of test evaluation.

Chronic low-grade peripheral inflammation is associated with severe nicotine dependence in schizophrenia: results from the national multicentric FACE-SZ cohort

Chronic peripheral inflammation (CPI) has been associated with cognitive impairment in schizophrenia (SZ). However, its sources remain unclear, more specifically it is not known whether tobacco smoking is a source of inflammation or not in SZ subjects. Moreover, nicotine (NIC), the major psychoactive compound of tobacco, shows strong anti-inflammatory properties in vitro, as well as inducing a severe biological dependence when administered repeatedly. The objective of the present study was to determine if CPI was associated with tobacco smoking and/or NIC dependence in schizophrenia. Three hundred and forty five stabilized community-dwelling SZ subjects aged 16 years or older (mean age = 32 years, 73% male) were consecutively included in the network of the FondaMental Expert Centers for Schizophrenia and assessed with validated scales. CPI was defined by a highly sensitive C-reactive protein (hsCRP) ≥3 mg/L. Current tobacco status was self-declared. Severe NIC dependence was defined by a Fagerstrom Test for Nicotine Dependence score ≥7. Overall, 159 (46.1%) were non-smokers, 117 (33.9%) and 69 (20%) were current tobacco smokers with, respectively, low and severe nicotine dependence. In a multivariate model, CPI remained associated with severe NIC dependence (29 vs 15%, OR = 2.8, p = 0.003) and body mass index (OR = 1.1, p < 0.0001), independently of socio-demographic characteristics and antidepressant intake. No association of CPI with low to moderate tobacco smoking dependence, number of daily smoked cigarettes, cannabis use, alcohol use or illness characteristics was found (all p > 0.05). CPI was associated with severe NIC dependence but not with tobacco smoking with low to moderate NIC dependence in SZ, independently of socio-demographic variables, body mass index, alcohol consumption and antidepressant intake. This result highlights the potential CPI consequences of the high prevalence of heavy tobacco smoking in SZ, indicating the importance of new therapeutic strategies for tobacco cessation in SZ.

Integrating Addiction and Mental Health Treatment within a National Addiction Treatment System: Using Multiple Statistical Methods to Analyze Client and Interviewer Assessment of Co-Occurring Mental Health Problems

Aims

For a Swedish national sample of 12,833 individuals assessed for a substance use disorder (SUD) (2002-2008) in the Swedish welfare system, client self-report and clinical staff Addiction Severity Index (ASI) assessment data were used to assess mental health problem severity and needs.

Methods

Analysis of client self-report data using regression methods identified demographic characteristics associated with reporting significant mental health problems. Clinical staff assessment data from the ASI Interviewer Severity Rating (ISR) score were used to develop a K-means cluster analysis with three client cluster profiles: Narcotics (n=4795); Alcohol (n=4380); and Alcohol and Psychiatric Problems (n=3658). Chi-square and one-way ANOVA analyses identified self-reported mental health problems for these clusters.

Results

44% of clients had a history of using outpatient mental health treatment, 45% reported current mental health symptoms, and 19% reported significant mental health problems. Women were 1.6 times more likely to report significant mental health problems than men. Staff assessed that 74.8% of clients had current mental health problems and that 13.9% had significant mental health problems. Client and staff results were congruent in identifying that clients in the Alcohol profile were less likely (5%) to report having significant mental health problems compared to the other two profiles (30% each).

Conclusions

About 19% of clients with SUDs reported significant mental health problems, need integrated addiction and mental health treatment, and these clients are clustered in two population groups. An additional 25% of the addiction treatment population report current mental health symptoms and have at some point used mental health treatment. This national level assessment of the extent and severity of co-occurring disorders can inform decisions made regarding policy shifts towards an integrated system and the needs of clients with co-occurring disorders.

A computer adaptive testing version of the Addiction Severity Index-Multimedia Version (ASI-MV): The Addiction Severity CAT

The purpose of this study was to develop and validate a computer adaptive testing (CAT) version of the Addiction Severity Index-Multimedia Version (ASI-MV), the Addiction Severity CAT. This goal was accomplished in 4 steps. First, new candidate items for Addiction Severity CAT domains were evaluated after brainstorming sessions with experts in substance abuse treatment. Next, this new item bank was psychometrically evaluated on a large nonclinical (n = 4,419) and substance abuse treatment (n = 845) sample. Based on these results, final items were selected and calibrated for the creation of the Addiction Severity CAT algorithms. Once the algorithms were developed for the entire assessment, a fully functioning prototype of an Addiction Severity CAT was created. CAT simulations were conducted, and optimal termination criteria were selected for the Addiction Severity CAT algorithms. Finally, construct validity of the CAT algorithms was evaluated by examining convergent and discriminant validity and sensitivity to change. The Addiction Severity CAT was determined to be valid, sensitive to change, and reliable. Further, the Addiction Severity CAT's time of completion was found to be significantly less than the average time of completion for the ASI-MV composite scores. This study represents the initial validation of an Addiction Severity CAT based on item response theory, and further exploration of the Addiction Severity CAT is needed. (PsycINFO Database Record

Estimating Risk of Alcohol Dependence Using Empirically Validated Ordinal Risk Zones Versus Recommended Binary Risk Zones of the RAPS4: A Validation Study Using Stratum-Specific Likelihood Ratio Analysis

BACKGROUND

Effective treatment options for alcohol dependence exist; yet, only 10% of people with alcohol dependence receive treatment. The objective of the current study was to examine the performance of previously recommended Rapid Alcohol Problem Screen 4 (RAPS4) risk zones, based on single binary cut-points (RAPS4 ≥ 1; RAPS4 ≥ 2), and empirically identified RAPS4 risk zones to identify people with alcohol dependence so that further diagnostic assessment or interventions can be offered.

METHOD

Stratum-specific likelihood ratio (SSLR) and receiver operating characteristic analyses were used to compare the screening performance of empirically identified "risk zones" on the RAPS4 to previously recommended binary cut-points in a general population sample of current drinkers in Ireland (N = 4,267). SSLRs were also used along with the pretest prevalence of alcohol dependence to estimate posttest probabilities of alcohol dependence for the recommended and empirically identified risk zones.

RESULTS

The weighted prevalence estimate of alcohol dependence among current drinkers was 6.9% (9.3% men; 4.5% women). The SSLR analysis identified multiple risk zones in the RAPS4, with each of the individual scores (0, 1, 2, 3, 4) retained as 5 separate ordinal risk zones for both men and women. A comparison of the area under the receiver operating characteristic curve showed that the ordinal RAPS4 risk zones performed better than recommended binary thresholds for both men and women. Based on the pretest probability of 9.3% and the identified SSLRs for the ordinal risk zones, the posttest probability of alcohol dependence for men ranged from 1.6% for those in the lower risk zone (RAPS4 = 0) to 86.7% for those in the highest risk zone (RAPS4 = 4). The posttest probability of alcohol dependence for women ranged from 0.4% for those in the lower risk zone to 80% for those in the higher risk zone.

CONCLUSIONS

The detection of alcohol dependence may be improved using the empirically identified ordinal RAPS4 risk zones for both men and women. The application of the identified SSLRs, particularly if integrated into a clinical decision support system, may be helpful for clinicians in providing feedback to patients regarding their risk of alcohol dependence.

Nicotine Dependence Measures for Perinatal Women

This integrative review provides an overview of nicotine dependence measures used with perinatal women and an evaluation of their psychometric properties. Fifty-five articles that met inclusion and exclusion criteria were identified from five different databases. Most of the studies used the Fagerström Test for Nicotine Dependence (FTND). Other approaches included diagnostic tests, the Wisconsin Inventory of Smoking Dependence Motives (WISDM), the Tobacco Dependence Screener, and single-item measures. This review indicated that the FTND may not be the best option for measuring nicotine dependence in this population. The WISDM is a newer instrument that has excellent psychometric properties and captures nonnicotinic dimensions of nicotine dependence relevant to women. Future research is needed to assess its reliability in the perinatal population. Other recommendations from this review include the use of biomarker validation, thorough psychometric reporting on nicotine dependence instruments, and the use of multiple instruments to maximize comparability between nicotine dependence instruments.

Validation of a Brief Measure of Opioid Dependence: The Rapid Opioid Dependence Screen (RODS)

The Rapid Opioid Dependence Screen (RODS) is an 8-item measure of opioid dependence designed for quick, targeted screening in clinical and research settings. Based on the Diagnostic and Statistical Manual of Mental Disorders, Fourth edition, criteria, the RODS has an average administration of less than 2 minutes and can easily be administered as a stand-alone instrument or as part of a comprehensive interview. This study reports on the initial validation of the RODS among a sample of 97 newly incarcerated, HIV-positive individuals. Using the Mini International Neuropsychiatric Interview as the primary measure of opioid dependence, the RODS showed good-to-strong sensitivity (.97), specificity (.76), positive predictive value (.69), and negative predictive value (.98), while concordance analysis revealed moderate diagnostic agreement (κ = .67). Psychometric properties revealed strong internal consistency (α = .92) and inter-item correlations (.66 to .87).

Psychosocial health problems associated with increased HIV risk behavior among men who have sex with men in Nepal: a cross-sectional survey

Background

Men who have sex with men (MSM) are marginalized, hidden, underserved and at high risk for HIV in Nepal. We examined the association between MSM sub-populations, psychosocial health problems and support, access to prevention and non-use of condoms.

Methods

Between September-November of 2010, a cross-sectional survey on HIV-related risk behavior was performed across Nepal through snowball sampling facilitated by non-governmental organizations, recruiting 339 MSM, age 15 or older. The primary outcomes were: (a) non-use of condoms at least once in last three anal sex encounters with men and (b) non-use of condoms with women in the last encounter. The secondary outcome was participation in HIV prevention interventions in the past year.

Results

Among the 339 MSM interviewed, 78% did not use condoms at their last anal sex with another man, 35% did not use condoms in their last sex with a woman, 70% had experienced violence in the last 12 months, 61% were experiencing depression and 47% had thought of committing suicide. After adjustment for age, religion, marital status, and MSM subpopulations (bisexual, ta, meti, gay), non-use of condoms at last anal sex with a man was significantly associated with non-participation in HIV interventions, experience of physical and sexual violence, depression, repeated suicidal thoughts, small social support network and being dissatisfied with social support. Depression was marginally associated with non-use of condoms with women. The findings suggest that among MSM who reported non-use of condoms at last anal sex, the ta subgroup and those lacking family acceptance were the least likely to have participated in any preventive interventions.

Conclusions

MSM in Nepal have a prevalence of psychosocial health problems in turn associated with high risk behavior for HIV. Future HIV prevention efforts targeting MSM in Nepal should cover all MSM subpopulations and prioritize psychosocial health interventions.

Accuracy of self-report, biological tests, collateral reports and clinician ratings in identifying substance use disorders among adults with schizophrenia

Identifying substance use disorders among adults with schizophrenia presents unique challenges but is critical to research and practice. This study examined: (a) the accuracy of assessments completed using various approaches in identifying substance use disorders, (b) their ability to discriminate between disorders of abuse and dependence, and (c) the benefits of using multiple indicators to identify substance use disorders. Data are from the Clinical Antipsychotic Trials of Intervention Effectiveness study. The sample comprised 1,460 community-based adults with schizophrenia, 15.8% (n = 230) of whom were positive for a current (past month) drug or alcohol use disorder using the Structured Clinical Interview for DSM-IV Disorders (SCID). Clinician ratings, self-report, collateral reports, and results of hair and urine tests were compared to SCID diagnoses. Congruence with SCID diagnoses was good across approaches and evidence for superiority of one approach over another was limited. No approach discriminated between abuse and dependence. There was limited benefit of using multiple indicators. Findings suggest that the decision regarding the "best" approach for identifying substance use disorders among adults with schizophrenia may be made through consideration of practical issues and assessment purpose, rather than selection of the approach that yields the most accurate diagnostic assessment.

Attendance and substance use outcomes for the Seeking Safety program: sometimes less is more

OBJECTIVE

This study uses data from the largest effectiveness trial to date on treatment of co-occurring posttraumatic stress and substance use disorders, using advances in statistical methodology for modeling treatment attendance and membership turnover in rolling groups.

METHOD

Women receiving outpatient substance abuse treatment (N = 353) were randomized to 12 sessions of Seeking Safety or a health education control condition. Assessments were completed at baseline and at 1 week, 3, 6, and 12 months posttreatment. Outcome measures were alcohol and cocaine use in the prior 30 days captured using the Addiction Severity Index. Latent class pattern mixture modeling (LCPMM) was used to estimate attendance patterns and to test for treatment effects within and across latent attendance patterns and group membership turnover.

RESULTS

Across LCPMM analyses for alcohol and cocaine use, similar treatment attendance patterns emerged: Completers never decreased below an 80% probability of attendance, droppers never exceeded a 41% probability of attendance, and titrators demonstrated a 50% to 80% probability of attendance. Among completers, there were significant decreases in alcohol use from baseline to 1-week posttreatment, followed by nonsignificant increases in alcohol during follow-up. No differences between treatment conditions were detected. Titrators in Seeking Safety had lower rates of alcohol use from 1-week through 12-month follow-up compared with control participants. Droppers had nonsignificant increases in alcohol during both study phases. Cocaine use findings were similar but did not reach significance levels.

CONCLUSIONS

The impact of client self-modulation of treatment dosage and group membership composition may influence behavioral treatment outcomes among this population.