The cost of treating substance abuse patients with and without comorbid psychiatric disorders.

OBJECTIVE: Data from a national sample of patients with a primary diagnosis of a substance use disorder were analyzed to examine whether having a comorbid psychiatric diagnosis-a dual diagnosis-was associated with increased costs of health services over a six-year period and whether dually diagnosed patients used particular types of services more frequently. METHODS: A national sample of substance abuse patients being treated in Veterans Affairs (VA) facilities were classified into two groups-those with a dual diagnosis (N=3, 069) and those with a single diagnosis of a substance use disorder (N=9,538). The sample was identified from two sources during a two-week period in 1990: outpatients in specialty substance abuse clinics and inpatients discharged with a substance-related diagnosis. Administrative data were used to track VA health care utilization and costs between 1991 and 1996. RESULTS: Dual diagnosis was associated with a significantly increased total cost of care over the six years, which was primarily explained by increased utilization of outpatient psychiatric and substance abuse services. Costs for both groups decreased over time, but they decreased faster among dually diagnosed patients. CONCLUSIONS: Having a comorbid psychiatric diagnosis appears to consistently increase the cost and utilization of services among patients with a primary diagnosis of a substance use disorder. These results are consistent with previous findings for dually diagnosed patients with a primary psychiatric diagnosis. The increased cost may simply reflect the greater severity of illness among dually diagnosed patients, but it may also indicate fragmented and inefficient service delivery.     

Long-term use of VA mental health services by older patients with substance use disorders

OBJECTIVE: The authors studied long-term patterns and predictors of use of mental health services by older surviving patients with substance use disorders in the Veterans Affairs (VA) health care system. METHODS: In this prospective longitudinal study, patient treatment records were used to determine long-term (ten-year) patterns and predictors of use of VA mental health services in a nationwide cohort of 10,678 surviving patients with a substance use disorder who were 55 years of age or older. The patients were categorized into three groups based on diagnosis during the index episode: patients with alcohol or drug abuse or dependence, patients with alcohol or drug psychosis, and patients with both a substance use and a psychiatric disorder. Most of the patients had alcohol use disorders. RESULTS: Over the ten-year period, successively fewer patients obtained outpatient and inpatient mental health care. Among patients who did obtain such care, the intensity of service use increased. Medical care did not substitute for mental health treatment. Younger age, being unmarried, and having a more severe disorder were associated with a greater likelihood of mental health service use over the ten-year period. Patients with a dual diagnosis were significantly more likely to obtain outpatient mental health care. Treatment on a residential care unit and longer initial hospital stay were associated with a lower rate of mental health readmissions. CONCLUSIONS: Of the substantial number of patients with substance use disorders who survive into old age, those with more long-standing substance use problems and with dual diagnoses have the greatest need for long-term mental health treatment.     

Delusions incorporating cannabis use in dually diagnosed patients with a primary psychotic disorder

OBJECTIVE: To describe and discuss the implications for treatment of 3 cases of dually diagnosed patients with a primary psychotic disorder who have developed persisting, cannabis-oriented delusional systems. METHOD: Psychiatric assessment and daily observation on an acute inpatient psychiatric unit. RESULTS: Abstinence appears to be particularly difficult to attain for a patient with psychosis who hold delusional beliefs that cannabis is a conduit for supernormal experiences with positive affective content, grandiose themes and a sense of enhanced self-efficacy. CONCLUSION: This phenomenon poses special challenges in the treatment of dual diagnosis patients. Modifications to existing CBT protocols for the treatment of substance abuse in psychosis might be useful in such patients.     

Use of psychiatric emergency services and enrollment status in a public managed mental health care plan.

OBJECTIVE: This study examined the sociodemographic and clinical characteristics of acute-care psychiatric patients who visited the emergency department at a large public hospital in terms of the patients' enrollment status in the region's public managed mental health care plan. The results of the analyses were expected to provide information about the degree and types of access to care for individuals who are and are not enrolled in the plan. METHODS: Data were collected over a seven-month period for 2,419 patients who visited a large, inner-city crisis triage unit. Patients were grouped according to whether they were currently enrolled, previously enrolled, or never enrolled in the public managed mental health care plan. Univariate and logistic regression models were used to determine differences between the three groups. RESULTS: In general, patients who were currently enrolled in the plan had a higher rate of functional psychosis, past use of psychiatric services, and functional disability and lower rates of substance use and homelessness. Previously enrolled patients had a more moderate rate of psychosis but a higher rate of substance use, functional disability, and homelessness. The never-enrolled patients had a lower rate of psychosis, functional disability, and past use of psychiatric services, and moderate substance use. CONCLUSIONS: The region's public health plan appeared to be succeeding in engaging and keeping the most psychiatrically impaired patients in treatment; however, individuals with moderate psychiatric symptoms and high levels of substance abuse may never have been enrolled in the plan because of Medicaid ineligibility or because they dropped out of treatment. Problematic behavior and history of hospitalization were the best predictors of enrollment status.     

Three-year outcomes of long-term patients with co-occurring bipolar and substance use disorders.

Little is known about the long-term outcomes of patients in the public mental health system who are disabled by co-occurring bipolar and substance use disorders. This article reports on the 3-year course of 51 patients with co-occurring bipolar and substance use disorders in the New Hampshire Dual Diagnosis Study. Participants received integrated dual disorders treatments in the state mental health system and were independently assessed with standardized measures at baseline and every 6 months for 3 years. Though psychiatric symptoms improved only modestly, participants improved steadily in terms of remission from substance abuse (61% in full remission at 3 years); they also achieved greater independent living (average 239 days in third year), competitive employment (49% in third year), regular social contacts with nonsubstance abusers (46% at 3 years), and quality of life (56% satisfied with life at 3 years). Different domains of outcome were only weakly related to each other. Long-term, disabled patients with co-occurring bipolar and substance use disorders have potential for remission from substance abuse and substantial improvements in functioning and quality of life.     

Prediction of twelve‐month service disengagement from an early intervention in psychosis service

Aim: The aim is to examine disengagement in an early psychosis treatment service and contrast clinical and demographic variables of patients who disengage against those who do not. Methods: Those with termination of treatment, despite therapeutic need within 12 months of entry (disengagers) (n = 57; 24.6%), were compared with those who remained in treatment at 12 months (n = 175) on a range of clinical and demographic variables collected at admission. After testing the difference between proportions, data analysis was conducted using methods of logistic regression. Results: Alcohol and/or cannabis abuse/dependence, initial diagnosisother than mood disorder, long duration of untreated psychosis, lower Positive and Negative Syndrome Scale total symptoms, and lower insight at referral accounted for 27% of variance in patient ‘disengagement’ within 12 months. Conclusion: A significant proportion of patients with first episode psychosis disengage from treatment within 12 months. Despite a number of factors being associated with disengagement, prediction using admission factors was poor. Early Intervention in Psychosis Services would benefit from increased attention to alcohol and drug problems, trying to reduce the duration of untreated psychosis, improving psychiatric symptoms and increasing insight in all patients to decrease service disengagement.     

DUAL DIAGNOSIS IN ELDERS DISCHARGED FROM A PSYCHIATRIC HOSPITAL

Recent evidence indicates persons 60 years and over experience significant alcohol and substance abuse problems. Since a combination of alcoholism and depression is likely to increase the relative rsk of suicide, it is important to examine the prevalence of dual diagnosis in older adults. The purpose of this study is to examine the prevalence and correlates of dual diagnosis in older psychiatric inpatient populations and compare our results with findings from studies of younger hospitalized dually diagnosed patients. A retrospective chart audit was performed on 101 elders who were discharged from three psychiatric hospitals. Clinical variables that were examined included length of hospital stay, psychiatric and medical diagnoses, medications and history of suicidal ideation or intent. The leading psychiatric disorder diagnosis for our sample of hospitalized psychiatric elders was depression. Over one-third (37.6%) had a substance abuse disorder in addition to a psychiatric disorder, and almost three-fourths (71%) of this ‘dual diagnosis’ group abused alcohol and 29% abused both alcohol and other substances. In addition, significantly more elders in the ‘dual diagnosis’ group (17.7%) than in the group with only a mental disorder diagnosis (3.3%) made a suicide attempt prior to admission to the hospital. Because affective disorders in conjunction with alcohol abuse are the most frequently found disorders in completed suicides, our findings have important relevance for the advocating of routine use of diagnostic assessment and screening for both substance abuse and mental disorders in this population. © 1997 by John Wiley & Sons, Ltd.     

Adolescent substance abuse and psychiatric comorbidities

The use and abuse of substances-including alcohol, nicotine, marijuana, inhalants, and other drugs-are commonly found to be comorbid with psychiatric conditions in adolescents. This dual diagnosis requires special attention and treatment, especially as substance use often begins during this developmental period. Adolescents may be diagnosed with substance abuse, substance dependence, or substance use disorder not otherwise specified, which indicates a developing substance use problem that includes symptoms of but does not meet criteria for substance dependence. Psychiatric comorbidity in adolescents who abuse substances is the rule rather the exception, and common comorbidities include depression, anxiety, bipolar disorder, conduct disorder, and attention-deficit/hyperactivity disorder. Treatment of the psychiatric disorder often helps to alleviate the substance use disorder as well. This activity discusses the epidemiology, assessment, and treatment of this dual diagnosis.     

Comparison of patient satisfaction with community-based vs. hospital psychiatric services

OBJECTIVE: Previous work suggests that psychiatric patients are more satisfied with community-based than with hospital-based services, but it is not clear how far these findings can be generalized to routine services. The aim of this study was to compare the satisfaction of patients with psychosis between a hospital-based service in London, UK and a community-based service in Verona, Italy. METHOD: The Verona Service Satisfaction Scale (VSSS) was used to measure satisfaction among patients with psychosis in Nunhead (London) and South Verona. RESULTS: Satisfaction across all dimensions was higher in South Verona than in Nunhead. Sociodemographic and service use differences between the two groups were insufficient to explain this difference. CONCLUSION: This study suggests that experimental findings that patients prefer community-based to hospital psychiatric services can be generalized to routine services.     

Gender differences in the phenomenology of bipolar disorder

OBJECTIVES: To investigate gender differences in the phenomenology of episodes in bipolar disorder as according to ICD-10. METHODS: All patients who got a diagnosis of a manic episode/bipolar disorder in a period from 1994 to 2002 at the first outpatient treatment ever or at the first discharge from psychiatric hospitalization ever in Denmark were identified in a nationwide register. RESULTS: Totally, 682 outpatients and 1037 inpatients got a diagnosis of a manic episode/bipolar disorder at the first contact ever. Significantly more women were treated as outpatients than as inpatients. Women were treated for longer periods as inpatients but not as outpatients. In both settings, the prevalence of depressive versus manic/mixed episodes was similar for men and women and the severity of manic episodes (hypomanic /manic without psychosis/manic with psychosis) and the severity of depressive episodes (mild/moderate/severe without psychosis/severe with psychosis) did not differ between genders. The prevalence of psychotic symptoms at first contact was the same for both genders. Among patients treated in outpatient settings more men than women presented with comorbid substance abuse and among patients treated during hospitalization more women than men presented with mixed episodes. CONCLUSIONS: Besides differences in the prevalence of mixed episodes and comorbid substance abuse few gender differences are found among patients presenting with a manic episode/bipolar disorder at first contact in psychiatric inpatient or outpatient hospital settings.     

Dual diagnosis in the suburbs: prevalence, need, and in-patient service use

  Background: Previous research has found comorbid severe mental illness and substance misuse (dual diagnosis) to be highly prevalent and to be associated with serious clinical and social problems, and increased service use in inner-city populations. The present study measures the prevalence of dual diagnosis, patterns of substance misuse, and associated in-patient use in a more demographically representative population in a suburban area of South London Method: We identified representative prevalent cases with psychotic illnesses who had been in contact with services in a geographically defined catchment area in Croydon over the previous 6 months. Cases of alcohol or substance misuse and dependence were identified through standardised interviews with patients and keyworkers, and socio- demographic and in-patient psychiatric service use data were also recorded. Results: Sixty-one of the 124 cases identified were randomly selected for interview, of whom 66% responded (N = 40). The prevalence rates of dual diagnosis (DD) observed were 33% (95% CI 18–47%) for any substance misuse, 20% (95% CI 8–32%) for alcohol misuse only, 5% (95% CI −16 to 26%) for drug misuse only, and 8% (95% CI −0.7 to 16%) for both drug and alcohol misuse. A lifetime history of any illicit drug use was observed in 35% of the sample (95% CI 20–50%). Patients who misuse alcohol and drugs were not found to be more likely to have been admitted to hospital in the previous 2 years, with little difference being observed between DD and psychosis-only patients in the mean number of in-patient admissions in this period (mean difference 0.25, 95% CI for difference −1.5 to 2.0). However, the DD patients were found to have spent on average over twice as long in hospital as other psychotic in-patients over the previous 2 years (mean difference 67.3 days, 95% CI for difference −205.9 to 71.2 days). DD patients were also found to have a greater number of unmet areas of need than the psychosis-only patients, which included accommodation, daytime activity, and social life, as well as substance misuse. Conclusions: The prevalence of substance misuse in patients with severe mental disorders in a suburban area is about as high as that for similar patients in inner-city London. While DD patients are not admitted more often than patients with psychosis alone, they have double the length of in-patient stay, which may be attributable to higher levels of unmet need. Accepted: 6 April 2000     

Diagnosing psychotic disorders in the emergency department in the context of substance use

OBJECTIVE: For patients who are actively using a substance and experience psychotic symptoms, determining whether the psychotic symptoms are due to a primary psychotic disorder or are substance induced is challenging, especially in emergency departments, where historical information is limited. This study examined the accuracy and subsequent treatment implications of emergency department diagnoses among substance-using patients who were having their first psychotic episode. METHODS: Emergency department diagnoses for 302 patients were compared with best-estimate longitudinal diagnoses (BELDs) based on research assessments at three time points (baseline, six months, and 12 months). RESULTS: Of the 223 patients whose symptoms were diagnosed in the emergency department as a primary psychotic disorder, one-quarter were determined by the BELD to have substance-induced psychosis or no psychosis. Overall, the diagnostic agreement was only fair (kappa=.32). Patients with an emergency department diagnosis of primary psychosis were significantly more likely than those with an emergency department diagnosis of substance-induced psychosis to be hospitalized, started on antipsychotic medication, and referred to mental health services instead of treatment for substance use (p<.001). Patients given an emergency department diagnosis of primary psychosis who were found by the BELD to have substance-induced psychosis or no psychosis were significantly more likely to be treated for a psychotic disorder rather than for substance-induced psychosis (p<.001) CONCLUSIONS: Clinicians in psychiatric emergency departments appear to have a tendency to attribute psychotic symptoms to a primary psychotic disorder rather than to concurrent substance use. Given that the diagnosis has significant implications for future management, it is important to improve diagnostic approaches in the emergency department.     

Outpatient compliance of psychiatric emergency room patients by presenting problems

In the present study, a cohort of patients who came to a psychiatric emergency room in a general hospital, and were not referred for hospitalization, were analyzed in regard to the amount and rate of subsequent contact with community mental health and substance abuse agencies. Patterns of service receipt and the differential impact of service use on hospitalization and/or return visits were analyzed by three major problem types: (1) psychiatric; (2) psychiatric/substance abuse; and (3) substance abuse. The analysis of these subgroups yielded valuable information about how the service system and/or different groups of patients in crisis respond to the system.This study was funded by a grant from the Office of Program Evaluation and Research, Ohio Department of Mental Health.     

Treatment for Dual Diagnosis Patients in the Psychiatric and Substance Abuse Systems

The purpose of this study was to describe and compare the extent to which psychiatric and substance abuse programs treating dual diagnosis patients in the residential and outpatient modalities offered the components recommended for this client group. Surveys were completed by managers of 753 programs in the Department of Veterans Affairs that had a treatment regimen oriented to dual diagnosis patients. Programs within both the psychiatric and substance abuse systems had some of the key services of integrated treatment (e.g., assessment and diagnosis, crisis intervention, counseling targeted at psychiatric and at substance use problems, medications, patient education, HIV screening and counseling, family counseling and education). However, compared to psychiatric programs, substance abuse programs were more likely to offer some of these services and other critical components (e.g., a cognitive-behavioral treatment orientation, assignment of a single case manager to each patient). Outpatient psychiatric programs were particularly lacking on key management practices (e.g., use of clinical practice guidelines, performance monitoring of providers) and services (e.g., detoxification, 12-step meetings) of integrated treatment. Generally, differences between psychiatric and substance abuse programs appeared to involve difficulties in developing treatment that is fully oriented toward the co-occurring diagnosis. To improve the provision of high-quality dual-focused care, we recommend planners' use of cross-system teams and applications of recently produced tools designed to increase programs' ability to deliver integrated care to dually disordered individuals.     

Changes in services and structure in community residential treatment facilities for substance abuse patients

OBJECTIVE: This study examined the extent to which community residential facilities that contract with the Department of Veterans Affairs (VA) to treat substance abuse patients are providing more services and structure to meet the needs of a client population with increasingly severe problems. METHODS: A nationwide sample of 249 community residential facilities with VA contracts was surveyed in 1995 and again in 1998. RESULTS: In 1998 facilities were more likely than they were in 1995 to have psychiatrists and psychologists available to patients as well as specialized counseling and psychoeducational, rehabilitation, and medical services. Facilities also provided more social and recreational activities, and more structure was provided by discouraging patients' choice of individual daily living patterns. In 1998 the facilities were more likely to admit dual diagnosis patients, those with substance use disorders and psychiatric disorders. Programs that changed toward accepting dual diagnosis patients had more services and structure than programs that consistently accepted only substance abuse patients. CONCLUSIONS: Community residential facilities that contract with VA are responding appropriately to an increasingly ill patient population by providing more services and structure.     

Unmet needs for substance abuse and mental health services among Northern Plains American Indian adolescents

Use of mental health and substance abuse services was examined among 109 American Indian adolescents in a Northern Plains reservation community. Each was interviewed to assess psychiatric diagnosis and service use and to determine whether an adult had recognized a problem in the adolescent-a critical determinant of receipt of services. Of the 23 youths who had a disorder, nine (39 percent) reported lifetime service use. Of the 25 who received services, 17 were treated by a school counselor; only one received services from a mental health specialist. Eight of the 25 youths with a psychiatric or substance use diagnosis who did not receive services reported that an adult had recognized a problem.     

San Diego Suicide Study. II. Substance abuse in young cases

Fifty-three percent of 133 consecutive young suicides had a principal psychiatric diagnosis of substance abuse. Twenty-four percent had an additional principal diagnosis of atypical depression, atypical psychosis, or adjustment disorder with depression. The relationship of the substance abuse to the additional diagnosis was usually obscure, though this subgroup was similar to the group with only substance abuse on a number of factors. Typically, substance abuse was a chronic condition present for nine years. Multiple substance abuse was the norm in these cases, and marijuana, alcohol, and cocaine were the most frequently abused substances. Substance abusers without other principal diagnoses received psychiatric care less frequently than those with additional principal diagnoses.     

The associations between substance use disorders, schizophrenia-spectrum disorders, and Axis IV psychosocial problems

Background Substance abuse among individuals with schizophrenia-spectrum disorders (SSDs) is associated with a range of adverse psychosocial outcomes in the areas of occupational functioning, housing stability, economic independence, access to health care, and involvement with the legal system. The aim of this study was to estimate the effects of substance use disorders (SUDs), SSDS, and dual diagnosis with both disorders on the risk for six important Axis IV psychosocial problems. This was accomplished using a large dataset of patients who are representative of individuals in routine US psychiatric practice. Method Weighted data from the 1999 Study of Psychiatric Patients and Treatments from a practice-based research network of the American Psychiatric Institute for Research and Education were analyzed. Some 615 US psychiatrists provided detailed clinical, psychosocial, and health services information on 1,843 patients, including 285 patients with one or more SUDs without an SSD, 180 patients with a diagnosis of an SSD without substance abuse comorbidity, and 68 dually diagnosed patients. Logistic regression models were used to determine effect estimates (adjusted odds ratios), and corresponding 95% confidence intervals were calculated. Results After adjusting for sociodemographic variables and for SSD diagnosis, SUD diagnosis was independently associated with increased risk for five of the Axis IV psychosocial problems of interest (occupational problems, housing problems, economic problems, problems with access to health care services, and problems related to interaction with the legal system/crime) when compared to all other psychiatric patients (n=1,310). After adjusting for the sociodemographic variables and for SUD diagnosis, SSD diagnosis (compared to all other psychiatric diagnoses) was associated with Axis IV economic problems, but not with the other five psychosocial problems of interest. The presence of both an SUD and an SSD diagnosis (dual diagnosis) was associated with a greater risk for four of the six Axis IV psychosocial problems studied, compared to the risks associated with either diagnosis alone. Limiting the substance of abuse to alcohol resulted in similar findings. Conclusions Although SUDs are associated with increased risk for poor social adjustment, the comorbidity of SUDs and SSDs is associated with greatly compounded psychosocial burdens. These findings, from a large sample of representative US psychiatric patients, demonstrate the ongoing need for improved services and policies for those specially burdened patients with the dual diagnosis of both an SSD and substance abuse or dependence.