The effectiveness of alternative planned durations of residential drug abuse treatment

Factors Predicting Patient's Allocation to Short- and Long-Term Therapeutic Community Treatments in the Italian VOECT Cohort Study

The Evaluation of Therapeutic Community Treatments and Outcomes (VOECT) study was conducted in 131 Italian Therapeutic Communities (TCs) in 2008/2009. All of the patients entering residential treatment for drug or alcohol dependence were invited to participate. Data regarding patient socio-demographic characteristics, drug and alcohol consumption, health and psychopathological status, prior treatments and outcomes, and their motivation score were collected upon enrolment onto the study. The aim of this work was to identify the factors associated with allocation to short- versus long-term programmes in drug or alcohol dependent patients entering TCs in Italy. Of the 2470 patients included in the analysis, 30.8% were allocated to short-term treatment and 69.2% to long-term treatment. Several factors were significantly associated with the allocation to short- and long-term treatments: unstable living conditions; entering the TC when not detoxified; a high Symptom Checklist-90 somatization score; prior cessation episodes; previous in-patient detoxification treatments; psychosocial treatments; entering the TC by oneself; and a low motivation score.

Measuring outcomes for TC clients: Higher Ground Drug Rehabilitation Trust

Purpose

The purpose of this paper is to analyse the clinical outcome data collected as part of an 18-week, abstinence-based residential therapeutic community (TC) programme, Higher Ground Drug Rehabilitation Trust (Higher Ground) in New Zealand. Lessons and implications for routine collection of clinical outcome data are identified.

Design/methodology/approach

Higher Ground collects longitudinal data on all consenting clients using a battery of validated psychometric tools, with repeated measures at up to nine points in time from first presentation through to 12-month post-discharge follow up. Data analysis covered clients who entered Higher Ground between 1 July 2012 and 2 June 2015 (n=524).

Findings

Clients presented with histories of addiction which often had significant negative associations with their physical and psychological health, their relationships, work, accommodation and criminal behaviour. By the time they exited the programme, clinically and statistically significant improvements were seen across multiple indicators including: substance use and abstinence; symptoms of post-traumatic stress disorder, depression, anxiety and stress; and a range of social indicators.

Research limitations/implications

Attrition in follow-up research is a significant challenge, with people completing the TC programme being more likely to participate than those who do not. This limits generalizability in post-discharge data. There was no control group, making causal attribution a challenge. Identifying suitable benchmarks from the literature is challenging because of the variety of outcome measures and research methodologies used.

Practical implications

Tracking client outcomes longitudinally using psychometric tools is potentially valuable for TCs and their funding bodies, as it provides insights into patterns of client recovery that can inform ongoing service improvements and resource allocation decisions. However, significant challenges remain.

Originality/value

The study demonstrates the value, and practical challenges, of collecting high-quality outcome data in a TC setting.

Therapeutic communities for addictions: a review of their effectiveness from a recovery-oriented perspective

Therapeutic communities (TCs) for addictions are drug-free environments in which people with addictive problems live together in an organized and structured way to promote change toward recovery and reinsertion in society. Despite a long research tradition in TCs, the evidence base for the effectiveness of TCs is limited according to available reviews. Since most of these studies applied a selective focus, we made a comprehensive systematic review of all controlled studies that compared the effectiveness of TCs for addictions with that of a control condition. The focus of this paper is on recovery, including attention for various life domains and a longitudinal scope. We searched the following databases: ISI Web of Knowledge (WoS), PubMed, and DrugScope. Our search strategy revealed 997 hits. Eventually, 30 publications were selected for this paper, which were based on 16 original studies. Two out of three studies showed significantly better substance use and legal outcomes among TC participants, and five studies found superior employment and psychological functioning. Length of stay in treatment and participation in subsequent aftercare were consistent predictors of recovery status. We conclude that TCs can promote change regarding various outcome categories. Since recovering addicts often cycle between abstinence and relapse, a continuing care approach is advisable, including assessment of multiple and subjective outcome indicators.

Effectiveness of therapeutic communities: a systematic review

BACKGROUND

Therapeutic communities (TCs) are drug-free residential settings, focused on psychosocial rehabilitation. While TCs are considered an effective method, the bulk of the research evidence is from poorly controlled studies. The goal of this study was to evaluate TC effectiveness in terms of abstinence and to determine if there were predictive factors of abstinence.

METHODS

The search used Medline up to January 30, 2011 and was based on a systematic review method. Studies on retention in treatment and/or substance use were considered.

RESULTS

Of the 321 studies retrieved from Medline, 12 met selection criteria including overall 3,271 participants from 61 TCs. On average, subjects stayed in TC a third of the planned time. The completion rate ranged from 9 to 56%. All studies showed that substance use decreased during TC, but relapse was frequent after TC. Treatment completion was the most predictive factor of abstinence at follow-up. Surprisingly, psychiatric comorbidities did not appear associated with relapse or with dropout.

CONCLUSIONS

There was a drop in consumption after TC, but long-lasting benefits were uncertain. Further studies are needed in order to compare the efficacy of TC programs and other types of treatment settings for substance-related disorders.

Psychosocial and pharmacological treatments versus pharmacological treatments for opioid detoxification

BACKGROUND

Different pharmacological approaches aimed at opioid detoxification are effective. Nevertheless a majority of patients relapse to heroin use, and relapses are a substantial problem in the rehabilitation of heroin users. Some studies have suggested that the sorts of symptoms which are most distressing to addicts during detoxification are psychological rather than physiological symptoms associated with the withdrawal syndrome.

OBJECTIVES

To evaluate the effectiveness of any psychosocial plus any pharmacological interventions versus any pharmacological alone for opioid detoxification, in helping patients to complete the treatment, reduce the use of substances and improve health and social status.

SEARCH STRATEGY

We searched the Cochrane Drugs and Alcohol Group trials register (June 2011), Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library Issue 6, 2011), PUBMED (1996 to June 2011); EMBASE (January 1980 to June 2011); CINAHL (January 2003 to June 2008); PsycINFO (1985 to April 2003) and reference list of articles.

SELECTION CRITERIA

Randomised controlled trials and controlled clinical trial which focus on any psychosocial associated with any pharmacological intervention aimed at opioid detoxification. People less than 18 years of age and pregnant women were excluded.

DATA COLLECTION AND ANALYSIS

Two authors independently assessed trials quality and extracted data.

MAIN RESULTS

Eleven studies, 1592 participants, fulfilled the criteria of inclusion and were included in the review. The studies considered five different psychosocial interventions and two pharmacological treatments (methadone and buprenorphine). Compared to any pharmacological treatment alone, the association of any psychosocial with any pharmacological was shown to significantly reduce dropouts RR 0.71 (95% CI 0.59 to 0.85), use of opiate during the treatment, RR 0.82 (95% CI 0.71 to 0.93), at follow up RR 0.66 (95% IC 0.53 to 0.82) and clinical absences during the treatment RR 0.48 (95%CI 0.38 to 0.59). Moreover, with the evidence currently available, there are no data supporting a single psychosocial approach.

AUTHORS' CONCLUSIONS

Psychosocial treatments offered in addition to pharmacological detoxification treatments are effective in terms of completion of treatment, use of opiate, participants abstinent at follow-up and clinical attendance. The evidence produced by this review is limited due to the small number of participants included in the studies, the heterogeneity of the assessment or the lack of detailed outcome information that prevented the possibility of cumulative analysis for several outcomes. Nevertheless it seems desirable to develop adjunct psychosocial approaches that might make detoxification more effective.

Psychosocial and pharmacological treatments versus pharmacological treatments for opioid detoxification

BACKGROUND

Different pharmacological approaches aimed at opioid detoxification are effective. Nevertheless a majority of patients relapse to heroin use, and relapses are a substantial problem in the rehabilitation of heroin users. Some studies have suggested that the sorts of symptoms which are most distressing to addicts during detoxification are psychological rather than physiological symptoms associated with the withdrawal syndrome.

OBJECTIVES

To evaluate the effectiveness of any psychosocial plus any pharmacological interventions versus any pharmacological alone for opioid detoxification, in helping patients to complete the treatment, reduce the use of substances and improve health and social status.

SEARCH STRATEGY

We searched the Cochrane Drugs and Alcohol Group trials register (27 February 2008). Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library Issue 1, 2008), PUBMED (1996 to February 2008); EMBASE (January 1980 to February 2008); CINAHL (January 2003-February 2008); PsycINFO (1985 to April 2003) and reference list of articles.

SELECTION CRITERIA

Randomised controlled trials which focus on any psychosocial associated with any pharmacological intervention aimed at opioid detoxification. People less than 18 years of age and pregnant women were excluded.

DATA COLLECTION AND ANALYSIS

Three reviewers independently assessed trials quality and extracted data.

MAIN RESULTS

Nine studies involving people were included. These studies considered five different psychosocial interventions and two substitution detoxification treatments: Methadone and Buprenorphine. The results show promising benefit from adding any psychosocial treatment to any substitution detoxification treatment in terms of completion of treatment relative risk (RR) 1.68 (95% confidence interval (CI) 1.11 to 2.55), use of opiate RR 0.82 (95% CI 0.71 to 0.93), results at follow-up RR 2.43 (95% CI 1.61 to 3.66), and compliance RR 0.48 (95% CI 0.38 to 0.59).

AUTHORS' CONCLUSIONS

Psychosocial treatments offered in addition to pharmacological detoxification treatments are effective in terms of completion of treatment, use of opiate, results at follow-up and compliance. Although a treatment, like detoxification, that exclusively attenuates the severity of opiate withdrawal symptoms can be at best partially effective for a chronic relapsing disorder like opiate dependence, this type of treatment is an essential step prior to longer-term drug-free treatment and it is desirable to develop adjunct psychosocial approaches that might make detoxification more effective. Limitations to this review are imposed by the heterogeneity of the assessment of outcomes. Because of lack of detailed information no meta analysis could be performed to analyse the results related to several outcomes.

Psychosocial and pharmacological treatments versus pharmacological treatments for opioid detoxification

BACKGROUND

Different pharmacological approaches aimed at opioid detoxification are effective. Nevertheless a majority of patients relapse to heroin use, and relapses are a substantial problem in the rehabilitation of heroin users. Some studies have suggested that the sorts of symptoms which are most distressing to addicts during detoxification are psychological rather than physiological symptoms associated with the withdrawal syndrome.

OBJECTIVES

To evaluate the effectiveness of any psychosocial plus any pharmacological interventions versus any pharmacological alone for opioid detoxification, in helping patients to complete the treatment, reduce the use of substances and improve health and social status.

SEARCH STRATEGY

We searched the Cochrane Drugs and Alcohol Group trials register (27 February 2008). Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library Issue 1, 2008), PUBMED (1996 to February 2008); EMBASE (January 1980 to February 2008); CINAHL (January 2003-February 2008); PsycINFO (1985 to April 2003) and reference list of articles.

SELECTION CRITERIA

Randomised controlled trials which focus on any psychosocial associated with any pharmacological intervention aimed at opioid detoxification. People less than 18 years of age and pregnant women were excluded.

DATA COLLECTION AND ANALYSIS

Three reviewers independently assessed trials quality and extracted data.

MAIN RESULTS

Nine studies involving people were included. These studies considered five different psychosocial interventions and two substitution detoxification treatments: Methadone and Buprenorphine. The results show promising benefit from adding any psychosocial treatment to any substitution detoxification treatment in terms of completion of treatment relative risk (RR) 1.68 (95% confidence interval (CI) 1.11 to 2.55), use of opiate RR 0.82 (95% CI 0.71 to 0.93), results at follow-up RR 2.43 (95% CI 1.61 to 3.66), and compliance RR 0.48 (95% CI 0.38 to 0.59).

AUTHORS' CONCLUSIONS

Psychosocial treatments offered in addition to pharmacological detoxification treatments are effective in terms of completion of treatment, use of opiate, results at follow-up and compliance. Although a treatment, like detoxification, that exclusively attenuates the severity of opiate withdrawal symptoms can be at best partially effective for a chronic relapsing disorder like opiate dependence, this type of treatment is an essential step prior to longer-term drug-free treatment and it is desirable to develop adjunct psychosocial approaches that might make detoxification more effective. Limitations to this review are imposed by the heterogeneity of the assessment of outcomes. Because of lack of detailed information no meta analysis could be performed to analyse the results related to several outcomes.

The impact of a brief induction on short-term continuation in a therapeutic community

Continuation in substance abuse treatment is one of the strongest predictors of successful post-treatment outcomes across all major treatment modalities. However, since rates of attrition are highest within the first month of treatment, many clients drop out before these positive outcomes are realized. The impact of organizational and therapeutic factors on treatment continuation in therapeutic communities has received little attention in the literature. This study was conducted to determine whether a brief induction to treatment was associated with improved treatment continuation in a therapeutic community. Multivariable logistic regression analysis indicated that induction was associated with 30-day continuation. Prior treatment and court-mandated treatment were also associated with continuation.

Therapeutic communities for substance related disorder

BACKGROUND

Therapeutic communities (TCs) are a popular treatment for the rehabilitation of drug users in the USA and Europe.

OBJECTIVES

To determine the effectiveness of TC versus other treatments for substance dependents, and to investigate whether effectiveness is modified by client or treatment characteristics.

SEARCH STRATEGY

We searched: Cochrane Central Register of Controlled Trials (The Cochrane Library Issue 2, 2005); MEDLINE, EMBASE, Psycinfo, CINAHL, SIGLE from their inception to March 2004. Reference lists of studies were scanned.

SELECTION CRITERIA

Randomised controlled trials comparing TC with other treatments, no treatment or another TC.

DATA COLLECTION AND ANALYSIS

Two authors independently inspected abstracts, the methodological quality was assessed using Drug and Alcohol CRG checklist. When possible, data were summarised using relative risks and differences in means, otherwise results are presented as reported by authors.

MAIN RESULTS

Seven studies were included. Differences between studies precluded any pooling of data, results are summarised for each trial individually: TC versus community residence: no significant differences for treatment completion; Residential versus day TC: attrition (first two weeks), and abstinence rates at six months significantly lower in the residential treatment group; Standard TC versus enhanced abbreviated TC: number of employed higher in standard TC RR 0.78 (95% CI 0.63, 0.96). Three months versus six months programme within modified TC, and six months versus 12 months programme within standard TC: completion rate higher in the three months programme and retention rate (40 days) significantly greater with the 12 months than 6 months programme. Two trials evaluated TCs within a prison setting: one reported significantly fewer re incarcerated 12 months after release from prison in the TC group compared with no treatment, RR 0.68 (95% CI 057, 0.81). In the other, people treated in prison with TC compared with Mental Health Treatment Programmes showed significantly fewer re incarcerations RR 0.28 (95% CI 0.13, 0.63), criminal activity 0.69 (95% CI 0.52, 0.93) and alcohol and drug offences 0.62 (95% CI 0.43, 0.90) 12 months after release from prison.

AUTHORS' CONCLUSIONS

There is little evidence that TCs offer significant benefits in comparison with other residential treatment, or that one type of TC is better than another. Prison TC may be better than prison on it's own or Mental Health Treatment Programmes to prevent re-offending post-release for in-mates. However, methodological limitations of the studies may have introduced bias and firm conclusions cannot be drawn due to limitations of the existing evidence.

Is there a case for extended interventions for alcohol and drug use disorders?

AIMS

To determine whether there is evidence to support the implementation of extended interventions (i.e. longer than 6 months) for individuals with alcohol or other drug use disorders.

METHODS

Literature on extended behavioral and pharmacotherapy interventions was reviewed, along with findings from studies of extended monitoring and monitoring paired with adjunctive counseling. Studies were identified through database searches, citations in prior reviews and examinations of recent volumes of relevant journals. Key terms were defined, and a theoretical rationale was presented for extended treatment. Several adaptive treatment studies that made use of stepped care or continuation protocols were also described.

MEASUREMENTS

The primary outcomes that were considered were alcohol and drug use during the intervention and post-intervention follow-ups. Other outcomes were examined when they were included in the articles reviewed.

FINDINGS

Most of the studies in the review provided support for the effectiveness of extended interventions for alcohol and drug abusers, whether the extended care was delivered through face-to-face contact or via the telephone. These findings held across all types of interventions that were examined (e.g. behavioral treatment, pharmacotherapy and monitoring). However, only a few studies directly compared extended and standard length version of the same intervention. New developments in addiction treatment with implications for extended care models were also described and discussed.

CONCLUSIONS

The findings of the review indicate that maintaining therapeutic contact for extended periods of time with individuals with alcohol and other drug disorders appears to promote better long-term outcomes than 'treatment as usual', although more studies are needed that compare extended and standard versions of interventions. Achieving good compliance and successful disease management with extended interventions will probably require adaptive protocols in which the intensity of treatment can be adjusted up or down in response to changes in symptoms and functioning over time. Future directions in research on extended interventions were discussed.

Psychosocial combined with agonist maintenance treatments versus agonist maintenance treatments alone for treatment of opioid dependence

BACKGROUND

Methadone maintenance at proper doses is effective in retaining patients in treatment and suppressing heroin use. Questions remain regarding the efficacy of the psychosocial services that are offered by most maintenance programs.

OBJECTIVES

To evaluate the effectiveness of any psychosocial plus any agonist maintenance treatment versus any agonist treatment alone in retaining patients in treatment, reducing the use of substances and improving health and social status.

SEARCH STRATEGY

We searched the Cochrane Central Register of Trials (CENTRAL) issue 3, 2003; MEDLINE 1966-2003; EMBASE 1980-2003; PsycINFO 1985-2003; relevant web sites; scan of reference list of relevant articles. There were no language or publication restrictions.

SELECTION CRITERIA

RCTs which focus on any psychosocial plus any agonist compared to any agonist maintenance intervention for opiate dependence. People aged less than 18 and pregnant women were excluded. Psychosocial in combination with antagonist maintenance treatment are excluded too.

DATA COLLECTION AND ANALYSIS

The trials were independently assessed for inclusion and methodological quality by the reviewers. Data were extracted independently and double checked.

MAIN RESULTS

The searching process resulted in the identification of 77 different studies: 12 studies met the inclusion criteria. These studies considered 8 different psychosocial interventions and 1 pharmacological treatment: Methadone Maintenance (MMT). The results show additional benefit in adding any psychosocial treatment to standard methadone maintenance treatment in relation to the use of heroin during the treatment RR 0.69 (95% CI 0.53-0.91); no statistically significant additional benefit was shown in terms of retention in treatment RR 0.94 (95% CI 0.85-1.02); and results at follow-up RR 0.90 (95% CI 0.76-1.07).

REVIEWERS' CONCLUSIONS

The present evidence suggests that adding any psychosocial support to Standard MMT significantly improves the non-use of heroin during treatment. Retention in treatment and results at follow-up are also improved, although this findings did not achieve statistical significance. Insufficient evidence is available on other possible relevant outcomes such as Psychiatric symptoms/psychological distress, Quality of life. Limitations to this review are imposed by the heterogeneity of the trials both in the interventions and the assessment of outcomes. Results of studies were sometimes in disagreement and because of lack of detailed information no meta analysis could be performed to analyse the results related to the outcomes more often reported as positive results in the single studies. Duration of the studies was also too short to analyse other relevant outcomes such as mortality. In order to study the possible added value of any psychosocial treatment over an already effective treatment such as standard MMT, only big multi-site studies could be considered which define experimental interventions and outcomes in the most standardized way as possible.

Artikel

■ Aim

To critically assess the widely held belief that treatment for drug abuse should be of long duration and intensive.

■ Method

A review of randomized controlled trials to assess dose–response studies of psychosocial treatment, where the experimental variable is the frequency or duration of counselling or group treatment, and randomised controlled studies comparing inpatient and outpatient treatment.

■ Results

Five studies with a dose–response type design were identified. In spite of a wide variability of intervention intensities and populations studied, none of the studies have given even modest support for the claim that offering more treatment generally leads to better outcomes.

■ Conclusion

The findings suggest that clinicians and researchers should look elsewhere for ways to enhance the efficacy of treatment, including stepped care models, contingency management, or the involvement of significant others in treatment.

Statistical definition of relapse: case of family drug court

At any point in time, a patient's return to drug use can be seen either as a temporary event or as a return to persistent use. There is no formal standard for distinguishing persistent drug use from an occasional relapse. This lack of standardization persists although the consequences of either interpretation can be life altering. In a drug court or regulatory situation, for example, misinterpreting relapse as return to drug use could lead to incarceration, loss of child custody, or loss of employment. A clinician who mistakes a client's relapse for persistent drug use may fail to adjust treatment intensity to client's needs. An empirical and standardized method for distinguishing relapse from persistent drug use is needed. This paper provides a tool for clinicians and judges to distinguish relapse from persistent use based on statistical analyses of patterns of client's drug use. To accomplish this, a control chart is created for time-in-between relapses. This paper shows how a statistical limit can be calculated by examining either the client's history or other clients in the same program. If client's time-in-between relapse exceeds the statistical limit, then the client has returned to persistent use. Otherwise, the drug use is temporary. To illustrate the method, it is applied to data from three family drug courts. The approach allows the estimation of control limits based on the client's as well as the court's historical patterns. The approach also allows comparison of courts based on recovery rates.

Antisocial personality disorder and TC treatment outcomes

There is a belief that persons diagnosed with antisocial personality disorder (APD) do not respond well to treatment, but the existing research has not supported this hypothesis. This study examined the relationship of APD to therapeutic community (TC) treatment outcomes. A total of 275 men and women were randomly assigned to two TCs. It was hypothesized that clients diagnosed with APD via the Millon Clinical Multiaxial Inventory (MCMI-II) would have poorer treatment outcomes than those with no APD. The MCMI-II was used to diagnose APD because of its focus in underlying pathological personality traits, as opposed to strict behavioral criteria as used in the Diagnostic and Statistical Manual of Mental Disorders classifications for APD; this hypothesis was not supported. Logistic regression analyses indicated that an MCMI-II diagnosis of APD was unrelated to treatment outcomes. Treatment completion was the most important factor in reducing recent drug use and post-discharge arrests. The results indicate that persons diagnosed with APD, with histories of substantial drug abuse and criminality, can benefit from TC treatment with aftercare in the community or at the very least, do as well as those with no APD. In light of the high prevalence rates of APD in substance-abusing populations, future research should continue to explore the many issues surrounding the diagnosis of APD, as well as its relationship to treatment outcomes.

The effect of treatment completion and length of stay on employment and crime in outpatient drug-free treatment

Length of stay in treatment has been found to be a significant predictor of positive post-treatment outcomes, such as decreases in unemployment and crime. However, length of stay may be an incomplete predictor of successful treatment. Surprisingly, few studies have examined whether completing treatment in addition to length of stay is an important factor in explaining positive treatment outcomes. The objective of our study is to examine the effect that treatment completion and length of stay have on post-treatment employment and crime for patients in outpatient drug-free treatment, the largest treatment modality in the United States. We use conditional logit and multiple regression models with program-level indicator variables (fixed effects) to estimate the effect of treatment completion and length of stay on employment and crime controlling for drug use severity, previous treatment history, and other patient demographics. Data are from the National Treatment Improvement Evaluation Study and include 986 adults enrolled in outpatient drug-free programs across the United States. We find that treatment completion and length of stay are significantly related to post-treatment employment. Holding length of stay constant, the occurrence of employment at follow-up among patients who complete their planned treatment is almost 2 times that of patients who do not complete treatment. However, treatment completion did not have a statistically significant effect on the probability of post-treatment crime. Although our results are mixed, these findings suggest that greater attention should be placed on evaluating the importance of both length of stay and treatment completion in treatment outcome studies.

Client satisfaction with substance abuse treatment

A survey of 15 publicly-funded treatment agencies in Iowa was conducted to identify correlates of satisfaction with substance abuse treatment for voluntary clients. We used stratified least-squares regression analysis to identify program characteristics that were associated with greater satisfaction levels. In order to investigate satisfaction among voluntary clients, we stratified the data using three measures of client choice. These were self-reports of the extent to which the respondent felt pressured by the threat of jail, legal action, or family demands. Women tended to be more satisfied than men. Satisfaction scores for clients who indicated they were in treatment by choice were correlated with judgements about program characteristics. Phone availability, time with counselor, counselor skill, and sensitivity were associated with greater levels of satisfaction in all three models. Parking, privacy and cleanliness were significant in two out of three models.

Comparing the impact of standard and abbreviated treatment in a therapeutic community. Findings from the district of Columbia treatment initiative experiment

This study examines the efficacy of providing Enhanced Abbreviated or Standard Inpatient treatment and Outpatient treatment to drug-abusing clients. The experiment randomly assigned 412 clients to two therapeutic community programs, which differed primarily in planned duration. This study addressed limitations of prior research, as it used random assignment of clients to treatment programs, achieved high follow-up rates and used objective measures of drug use and criminal history. Self-reports and objective measures of criminal activity and substance abuse were collected at pre- and posttreatment interviews. Completing the entire 12-month program (inpatient and outpatient) was more important than duration of inpatient program attended. Regardless of program, completers had substantial reductions in posttreatment drug abuse and arrests. A 12-month course of treatment including at least 6 months in a therapeutic community followed by outpatient treatment can produce marked reductions in drug abuse and crime among persons who complete both phases.

Cost-effectiveness of inpatient substance abuse treatment

OBJECTIVE

To identify the characteristics of cost-effective inpatient substance abuse treatment programs.

DATA SOURCES/STUDY SETTING

A survey of program directors and cost and discharge data for study of 38,863 patients treated in 98 Veterans Affairs treatment programs.

STUDY DESIGN

We used random-effects regression to find the effect of program and patient characteristics on cost and readmission rates. A treatment was defined as successful if the patient was not readmitted for psychiatric or substance abuse care within six months.

PRINCIPAL FINDINGS

Treatment was more expensive when the program was smaller, or had a longer intended length of stay (LOS) or a higher ratio of staff to patients. Readmission was less likely when the program was smaller or had longer intended LOS; the staff to patient ratio had no significant effect. The average treatment cost $3,754 with a 75.0% chance of being effective, a cost-effectiveness ratio of $5,007 per treatment success. A 28-day treatment program was $860 more costly and 3.3% more effective than a 21-day program, an incremental cost-effectiveness of $26,450 per treatment success. Patient characteristics did not affect readmission rates in the same way they affected costs. Patients with a history of prior treatment were more likely to be readmitted but their subsequent stays were less costly.

CONCLUSIONS

A 21-day limit on intended LOS would increase the cost-effectiveness of treatment programs. Consolidation of small programs would reduce cost, but would also reduce access to treatment. Reduction of the staff to patient ratio would increase the cost-effectiveness of the most intensively staffed programs.

The effects of planned duration of residential drug abuse treatment on recovery and HIV risk behavior

OBJECTIVE

This study assessed the effects of planned duration of residential drug abuse treatment on recovery from drug use and on human immunodeficiency virus (HIV) risk behaviors.

METHODS

Two concurrent randomized controlled trials of programs differing in planned duration were conducted: 6-month vs 12-month versions of a traditional therapeutic community program, and 3-month vs 6-month versions of a modified therapeutic community incorporating a relapse prevention and health education program. Outcomes, measured at least 16.5 months after admission, included time from admission to first drug use; severity of drug, alcohol, legal, and employment problems; and risky drug injection and sexual behaviors.

RESULTS

Among 539 clients (86% of those enrolled), there were no significant effects of planned duration of treatment upon Addiction Severity Index scores or HIV risk behavior. In the relapse prevention program, clients randomized to the 6-month program had a longer time to first drug use than those in the 3-month program (hazard ratio = 0.74; 95% confidence interval = 0.58, 0.93). Employment problems at follow-up were significantly less severe among clients treated in the therapeutic community than among those in the relapse prevention program.

CONCLUSIONS

No overall benefit of extending treatment beyond 6 months was found.

Planned versus actual duration of drug abuse treatment. Reconciling observational and experimental evidence

The purpose of the study was to evaluate the associations of planned versus actual duration of drug abuse treatment with psychosocial outcomes and drug use at follow-up. A randomized trial was conducted in a modified therapeutic community in which 444 clients were assigned to programs with planned durations of either 3 or 6 months. Outcomes were psychosocial measures assessing changes in mood and in stage of behavior change between admission and exit and return to drug use and patterns of use 2 to 6 months after exit. Planned duration was not associated with any of the outcomes. A longer actual length of stay was, however, associated with greater improvements in the mood variables; lower rates of drug use at follow-up; and, among those using drugs at follow-up, a longer time from exit to first drug use. Intention-to-treat analyses supported these results. Randomized controlled trials are needed to distinguish the effects of planned duration and actual length of stay.

Changes in HIV risk behavior following alternative residential programs of drug abuse treatment and AIDS education

We compared the effectiveness in changing human immunodeficiency virus (HIV) risk behavior of two different approaches to acquired immunodeficiency syndrome (AIDS) education given by residential drug abuse treatment programs differing in their planned duration. Two randomized controlled trials compared (a) a 6-month with a 12-month therapeutic community (TC) program, and (b) a 6-month with a 3-month relapse prevention (RP) program. Three composite variables assessing HIV risk (a) drug injection, (b) sexual partners, and (c) condom use-were measured for the 3 months prior to admission and follow-up. The TC program comprised a four-part AIDS information intervention. The RP program comprised a 21- or 42-session small-group program in the principles of RP, 5 skills-building AIDS education sessions, and 6 other health education sessions. Four hundred ninety-five clients were enrolled in the study and completed a follow-up interview within 6 months of exit (79% of those enrolled). Clients in the RP program reduced their drug injection and condom use risk. Female clients in the TC program reduced their condom use risk. There were no differential effects on risk behavior change of either planned duration (randomization assignment) or program type (RP versus TC). Thus, differences in the treatment programs, including AIDS education components, had no apparent effect on HIV risk behavior change. The contribution of residential drug abuse treatment programs to AIDS prevention remains unproved.