Exploring the Comorbidity of Anxiety and Substance Use Disorders

Anxiety disorders and substance use disorders are highly comorbid, and such comorbidity complicates treatment and worsens prognosis. The mechanisms underlying the relationship between anxiety and substance use disorders are poorly understood. This paper reviews recent research attempting to explain these associations. Cognitive factors, such as attentional bias, expectancies, and anxiety sensitivity, appear to impact on the relation between anxiety and substance misuse. Temporality of the anxiety and substance use disorder may also indicate whether the substance use disorder is primary (anxiety may be a result of use) or secondary (substances may be used to self-medicate). Social phobia has been predominantly identified as a primary disorder preceding substance use, while the temporality of other anxiety and substance use disorders is less clear. The efficacy of concurrent treatment compared with separate treatment of either anxiety or substance use disorder is unclear and requires further research.     

Emotional Eating among Individuals with Concurrent Eating and Substance Use Disorders

Emotional eating occurs frequently in individuals with eating disorders and is an overlooked factor within addictions research. The present study identified the relationship between emotional eating, substance use, and eating disorders, and assessed the usefulness of the Emotional Eating Scale (EES) for individuals with concurrent eating disorders (ED) and substance use disorders (SUD). One hundred and ninety three individuals seeking specialized substance use and eating disorder treatment were administered substance use, mental health, and eating disorders measures. Results suggested that emotional eating predicted the ability to resist using drugs in high risk situations and the tendency to be over-absorbed in face of stressful situations. The EES is useful for assessing emotional eating among individuals with concurrent ED and SUD, although it would be improved by the inclusion of more items of positive affect. Emotional eating within populations with concurrent ED and SUD is worthy of further investigation.     

Racial/Ethnic Differences in Contemporaneous Use of Mental Health and Substance Use Treatment Among Individuals Experiencing Both Mental Illness and Substance Use Disorders

This study examined whether the well-established racial/ethnic differences in mental health service utilization among individuals with mental illness are reflected in the treatment utilization patterns of individuals experiencing both mental illness and substance use disorders, particularly in regards to the use of contemporaneous mental health and substance abuse treatment. Using pooled data from the National Survey on Drug Use and Health (2009–2013), the patterns of mental health and substance use treatment utilization of 8748 White, Black, or Latino individuals experiencing both mental illness and substance use disorders were analyzed. Multinomial logistic regression was conducted to test the relationships among racial/ethnic groups and the receipt of contemporaneous treatment, mental health treatment alone, and substance use treatment alone as compared with no treatment utilization. Results indicated that Black and Latino respondents were less likely to receive contemporaneous treatment than Whites respondents. Also, significantly associated with outcomes were several interactions between race/ethnicity and predisposing, need and enabling factors known to be associated with service utilization. The findings suggest that an underlying mechanism of racial/ethnic differences among individuals with co-occurring mental illness and substance use disorders in the treatment utilization may differ by the specific types of treatment and between Blacks and Latinos. Therefore, efforts to reduce these disparities should consider specialty in each treatment settings and heterogeneity within diverse racial/ethnic groups.     

Factors Influencing the Frequency of Emergency Department Utilization by Individuals with Substance Use Disorders

This study assessed the characteristics of individuals with substance use disorders (ISUDs) according to their frequency of emergency department (ED) utilization, and examined which variables were associated with an increase in ED visits using Andersen’s model. Data linkage of administrative databanks from three sources [addiction rehabilitation centre registry, physician billing systems, and hospital discharge databank] for 4526 ISUDs was performed. Predisposing, enabling and need factors associated with number of ED visits were determined using a negative binomial regression model and generalised estimating equations. The rate of ED utilization for this population was 9.6 %. Increased number of ED visits was associated with the following variables: older age, social fragmentation, number of consultations with general practitioners, number of consultations with psychiatrists, number of consultations with other types of physicians, alcohol abuse, drug abuse, schizophrenia, anxiety disorders, personality disorders, co-occurring substance dependence and mental disorders, co-occurring substance dependence and chronic physical disorders, and co-occurring mental health disorders and chronic physical disorders. By contrast, a diagnosis of substance dependence, co-occurring drug and alcohol abuse, and a co-occurring diagnosis of substance dependence with mental health and chronic physical disorders decreased ED visits. Efforts to reduce avoidable use of EDs should focus on chronic-disease management and other related strategies aimed at reinforcing services to ISUDs in the community, especially for ISUDs with a co-occurring diagnosis of either mental health disorders or chronic physical disorders.     

Psychometric Qualities of the Dutch Version of the Substance Use Risk Profile Scale Adapted for Individuals with Mild Intellectual Disabilities and Borderline Intellectual Functioning

ABSTRACT

Introduction

Personality traits may predict the use of substances in individuals with mild intellectual disabilities (MID) or borderline intellectual functioning (BIF). The Dutch version of the Substance Use Risk Profile Scale (SURPS), adapted for this population, was tested on its psychometric properties.     

Psychometric Properties of Spanish Adaptation of the PDD-MRS Scale in Adults with Intellectual Developmental Disorders: The EVTEA-DI Scale

Strategies for the early detection of autism spectrum disorders (ASD) in people with intellectual developmental disorder (IDD) are urgently needed, but few specific tools have been developed. The present study examines the psychometric properties of the EVTEA-DI, a Spanish adaptation of the PDD-MRS, in a large randomized sample of 979 adults with IDD. Factorial solution analysis suggested a three-factor solution (stereotyped behavior, communication, and social behavior). The EVTEA-DI showed good reliability and convergent validity when compared to the Childhood Autism Rating Scale. Discriminative validity analysis resulted in an acceptable global sensitivity of 70% and a high specificity of 90%. The EVTEA-DI proved to be a valid screening tool in ASD assessment of the adult Spanish population with IDD.     

Prevalence of HIV Viral Load Suppression Among Psychiatric Inpatients with Comorbid Substance Use Disorders

A consistently suppressed viral load enables HIV (+) patients to live longer, healthier lives and reduces the probability of transmitting the virus. Since the prevalence of HIV is four times higher among those with psychiatric disorders than in the general population, it is likely that this group would also have greater difficulty remaining in care and achieving viral suppression. A secondary data analysis utilizing screening data from the Preventing AIDS Through Health (PATH) for Triples (PFT) Study were examined to assess HIV load suppression among 254 psychiatric inpatients with comorbid substance use disorders in Philadelphia. Viral load results from the past 12 months were obtained from medical records for 63 inpatients identified as HIV (+). The sample was predominately African American (76%), male (56%), and the average age was 43 years. Psychiatric disorders included depression (64%), schizophrenia (21%), and bipolar disorder (13%) with patients reporting use of alcohol (73%), cocaine (64%), cannabis (29%) and opioids (16%) prior to admission. Among this high risk sample of HIV (+) patients, about one-half (52%) achieved viral suppression, with recent opioid users six times more likely to have a detectable viral load than non-opioid users (OR 6.0; CI 1.1–31.7, p?=?.035). The 52% viral load suppression rate among psychiatric inpatient was higher than expected, given that the CDC’s national suppression rate among those diagnosed with HIV in the general population is 58%. However, individuals with mental illness and substance use disorders require constant surveillance, monitoring, and supportive services to achieve viral suppression. Many of those who were virally suppressed were engaged in Philadelphia’s extensive treatment network, whereas those who were detectable and enrolled in the PFT intervention were often homeless with unstable psychiatric symptoms and current substance use disorders, particularly opioid abuse.     

Risk of Reincarceration Among Prisoners with Co-occurring Severe Mental Illness and Substance Use Disorders

This study examined whether the presence of a comorbid substance use disorder increased the risk of criminal recidivism and reincarceration in prison inmates with a severe mental illness. Our analyses of more than 61,000 Texas prison inmates showed that those with a co-occurring psychiatric and substance use disorder exhibited a substantially higher risk of multiple incarcerations over a 6-year period compared to inmates with psychiatric disorders alone or substance use disorders alone. Further research is needed to identify the factors associated with criminal recidivism among released prisoners with co-occurring disorders.     

Risk of Future Offense Among Probationers with Co-occurring Substance Use and Mental Health Disorders

The criminal justice system is the primary service delivery system for many adults with drug and alcohol dependence, mental health, and other health service needs. The purpose of this study was to examine the relationship between risk of future offense, mental health status and co-occurring disorders in a large substance abuse diversion probationer population. A purposive sample of 2,077 probationers completed an assessment to screen for mental health disorders, substance use disorders, risk of future crime and violence, and several demographic characteristics. Probationers who screened positive for co-occurring substance use and mental health disorders were significantly more likely to be at higher risk of future crime and violence compared to probationers who screened positive for only substance use, only a mental health disorder, or no substance use or mental health disorder. Implications for substance use and mental health service delivery are discussed, and recommendations are made for further research.     

Predictors of Referral to Supported Employment Among Consumers with Co-Occurring Mental and Substance Use Disorders

Clinical trials demonstrate that Supported Employment is effective in assisting persons with severe mental illness in obtaining competitive employment. However, little is known about the factors related to consumers’ decisions to pursue employment, especially for consumers with co-occurring substance and mental disorders. This study examines the demographic, socioeconomic and illness characteristics of consumers referred for Supported Employment services. Consumers were drawn from Integrated Dual Diagnosis Treatment programs in four community mental health agencies. Study participants included 113 consumers referred for Supported Employment services and 78 randomly selected non-referred consumers as the comparison group. Results suggest that consumers who have past work experience are more likely to be referred to Supported Employment, while consumers who perceive themselves as disabled or who are diagnosed as substance dependent are less likely to be referred to Supported Employment. Implications for agency practice and future research are discussed.     

Delay Discounting Interacts with Distress Tolerance to Predict Depression and Alcohol Use Disorders among Individuals Receiving Inpatient Substance Use Services

International Journal of Mental Health and Addiction -     

Psychometric Properties of the Positive and Negative Affect Scale for Children (PANAS-C) in Children with Anxiety Disorders

This study investigated the psychometric properties of the Positive and Negative Affect Scale for Children (PANAS-C) (Laurent et al. Psychol Asses 1: 326–338, 1999) in a sample of 139 children (ages 7–14 years) diagnosed with a principal anxiety disorder. Results from this study provided support for the convergent validity of the PANAS-C with established measures of childhood anxiety and depression. As predicted, negative affect was significantly associated with measures of anxiety and depression whereas positive affect was associated with depression. However, weaknesses in discriminant validity were found, most notably with regard to social anxiety. Consistent with previous research, social anxiety was significantly associated with low levels of positive affect (PA). Furthermore, results from regression analyses indicated that PA made a significant unique contribution to the prediction of social anxiety as well as depression scores. Findings are discussed with regard to the usefulness of the PANAS-C to differentiate anxiety and depression in children with anxiety disorders.     

Validity of the Structured Clinical Interview for DSM-IV Among Veterans Seeking Treatment for Substance Use Disorders

This paper examines the validity of the Structured Clinic Interview for DSM-IV (SCID) I and II in a sample of Veterans seeking treatment for substance use disorders (SUDs). Participants (N?=?183) initially receiving residential or outpatient treatment for SUDs completed the SCID I and II. More than one-third of participants met criteria for an Axis I disorder, and almost one-half met criteria for an Axis II disorder. Concurrent, discriminant, and predictive validity were examined for diagnoses of SUDs and antisocial personality disorder (APD), as well as symptoms of depression, anxiety, and thought disorder. Results generally provided strong support for the concurrent, discriminant, and predictive validity of the SCID I diagnoses of alcohol use disorders (AUDs) and strong support for the concurrent and discriminant validity of drug use disorders (DUDs). There was mixed support for the concurrent validity of APD. Predictive validity for DUDs or APD was not supported.