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Logo of nihpaAbout Author manuscriptsSubmit a manuscriptHHS Public Access; Author Manuscript; Accepted for publication in peer reviewed journal;
 
Am J Drug Alcohol Abuse. Author manuscript; available in PMC 2012 December 18.
Published in final edited form as:
PMCID: PMC3525112
NIHMSID: NIHMS426835

Dual-Focus Mutual Aid for Co-occurring Disorders: A Quasi-Experimental Outcome Evaluation Study

Abstract

Previous observational research has indicated the effectiveness of a 12-step, dual-focus mutual aid group, Double Trouble in Recovery (DTR), for assisting individuals to recover from co-occurring substance use and psychiatric disorders. The current study extends this line of research by evaluating DTR with a quasi-experimental design; controlled designs are rare in studies of mutual aid. Patient outcomes in the same psychiatric day treatment program were compared for two consecutive admission cohorts characterized by high rates of co-occurring disorders. The first cohort did not have DTR available while the second cohort was exposed to DTR after it was established at the program. Both cohorts were assessed at program admission and at a six month follow-up. Using intent to treat analysis, the Post-DTR cohort as compared with the Pre-DTR cohort had significantly fewer days of alcohol and drug use, more frequent traditional 12-step groups outside of the program and higher psychiatric medication adherence. There were no differences in psychiatric symptoms or program retention, however. This study helps demonstrate the benefits of introducing 12-step, dual-focus mutual aid into psychiatric treatment programs that serve patients with co-occurring disorders.

Keywords: Co-occurring Disorders, Mutual Aid, Self-Help, 12-step Groups, Program Evaluation, Substance Abuse, Mental Illness, Treatment Outcomes

1. Introduction

About 5.2 million adults in the U.S. have a co-occurring substance use disorder and serious psychological distress, according to the National Survey of Drug Use and Health (1). Co-occurring disorders (COD) are more severe and chronic than single disorders (2, 3, 4, 5) and are highly predictive of poor treatment outcomes (6, 7, 8). Evidence indicates that 12-step groups, using the principles articulated by Alcoholics Anonymous [AA] (9), are useful in maintaining abstinence from substances of abuse (10, 11, 12, 13, 14) and in promoting recovery from mental illness (15, 16, 17, 18, 19, 20). But historically, traditional “single focus” 12-step groups have been underutilized by individuals with co-occurring disorders (21, 22, 23, 24). Research has also shown that clinicians are less likely to refer persons with COD than those with a substance use disorder only to traditional 12- step groups (25, 26, 27).

Traditional 12 step groups have substantial limitations for individuals with COD. Identifying and bonding with other members may be difficult for dually diagnosed individuals if they feel different from other group members. Persons with COD who are newcomers to 12-step meetings often find a lack of acceptance and empathy (21, 28). Some members with COD report receiving misguided advice about psychiatric illness and the use of medications, which are seen as “drugs” (e.g., 27, 29), although this is not the official view of AA and Narcotics Anonymous (NA) World Services (30, 31). Nevertheless, strong aversion remains against the use of psychoactive medications in local 12-step chapters, where the potential for abuse of certain medications makes any use unacceptable, whether for treatment of substance dependency or mental illness. This has concrete consequences, such as not being allowed to speak (or “testify”) at meetings. A survey of AA leaders revealed their belief that individuals should take their medications as prescribed, but most “felt that participation in a group especially [designed] for persons with a dual diagnosis would be more desirable than a traditional AA group” (32). Although there is some inconsistency in the research on participation in 12 step groups by patients with COD. (33, 34, 35), several investigators have concluded that specialized “dual focus” fellowships would be important to bringing the full benefits of 12-step mutual aid to the large population of person with COD (36, 32, 37).

Double Trouble in Recovery (DTR), a mutual aid program adapted from the 12 steps of AA, was founded in 1989 to meet the specialized needs of persons dually diagnosed with a mental illness and substance use disorder. DTR encourages members to discuss their addictions, mental illnesses, psychotropic medications, and experiences with formal treatment, without the shame or stigma they might encounter in traditional single focus 12-step groups such as AA or NA (28). Previous research has indicated that DTR affiliation is associated with increased abstinence from drugs/alcohol (38), better psychiatric medication adherence (39), and improved coping and quality of life (40). Specific self-help processes in DTR groups - helping others and mutual learning - were associated with better abstinence outcomes (41).

However, this previous research on the effectiveness of DTR was based on a naturalistic longitudinal study of DTR members recruited in existing DTR groups. The present study extends this line of research by using a quasi-experimental evaluation design. Treatment outcomes in the same program were compared for two consecutive admission cohorts of psychiatric outpatients characterized by a high rate of co-occurring disorders. The first cohort did not have a DTR group available while the second cohort was exposed to DTR after such a group was established. Both cohorts were assessed at admission to the program and at six month follow-up. The purpose of the study was to determine whether adding DTR mutual aid to a day treatment psychiatric program that primarily serves patients with COD improves patient outcomes.

2. Method

2.1. Setting

The setting was a psychiatric continuing day treatment program (CDTP) located in New York City. Patients in this program usually have a 3 times a week, half-day schedule, either in the morning or afternoon, and participate in one to four groups per day. Patients are offered breakfast and lunch on days they come to the program. The CDTP provides mental health services for persons with single psychiatric disorders as well for those dually diagnosed with psychiatric and substance use disorders. Specific groups are offered for dually diagnosed consumers, such as “Substance Abuse Awareness” and “Relapse Prevention;” more general mental health groups are offered to all consumers, such as “Coping with Mental Illness” and “Building Self Esteem.”

2.2. Study samples

Two cohorts of patients newly admitted to the CDTP were recruited, the first from March to December 2003 (termed the Pre-DTR cohort; N= 81) and the second from May 2004 to December 2005 (termed the Post-DTR cohort; N=148). The Post-DTR cohort was larger by design. Patients were referred and admitted to the CDTP from a variety of mental health and drug treatment settings, including inpatient psychiatric units, mental health residences, other outpatient mental health clinics, outpatient drug treatment clinics, or were self-referred through community contacts. Consecutive admissions to the study clinic were referred by a CDTP intake counselor to a study research assistant. CDTP patients were excluded from study participation if they were younger than age 18, did not understand or speak English, appeared intoxicated on drugs or alcohol, carried a diagnosis of mental retardation, were deemed actively psychotic by the clinic’s intake coordinator, or appeared unable to understand and give informed consent.

All patients who agreed to participate in the study signed an informed consent. Participants received compensation of $20.00 for a baseline interview and $40.00 for a 6-month follow-up interview. The study protocol was approved by the Institutional Review Boards (IRBs) of the host research site (Albert Einstein College of Medicine) and the organization that conducted the study (National Development and Research Institutes, Inc.).

2.3. Procedures

In order for the DTR group to reach a workable minimum size (6) and to avoid exposing Pre-DTR subjects to DTR, the DTR group was implemented two months before recruitment of Post-DTR subjects and four months after the last Pre-DTR subjects had been inducted in the study. Recently admitted CDTP patients were invited to start-up the DTR group; none of these patients were included in the Post-DTR cohort. This procedure ensured that all Post-DTR subjects would be able to join an “established” DTR group. None of the Pre-DTR subjects participated in DTR meetings within the first six months after their induction into the study.

The DTR group began in April 2004. After the two month DTR implementation period, the DTR group was voluntarily available to all consumers in the CDTP and was the only consumer-led group in the facility. The meetings were chaired by consumer facilitators who were oriented by H. S. Vogel, the Executive Director of Double Trouble in Recovery. DTR meetings follow a traditional 12-step format, described in detail in the manual (42).

2.4. Participant follow-up

All participants completed an extensive locator sheet at the baseline interview, which contained detailed information regarding how they could be located to schedule follow-up interviews (e.g., via telephone, email, regular mail, through friends, family, or other contacts). Efforts were made to contact and schedule all subjects for their 6 month follow-up interviews, whether or not they were still attending the CDTP

2.5. Study measures

At study intake subjects were administered a structured interview that obtained data on demographics, employment/support status, living arrangements, psychiatric diagnoses (43), psychiatric symptoms (44), psychiatric medication adherence (45), recent substance use, psychiatric and addiction treatment history and recent 12-step attendance. Program retention, defined as the number of days that subjects remained enrolled in the CDTP up to 6 months, was obtained from program records.

2.6. Analysis techniques

Intent to treat analysis was conducted to compare outcomes between the Pre-DTR and Post-DTR cohorts. The baseline equivalents of the dependent (outcome) measures were used as covariates in multiple regression. Other baseline measures were included as covariates only if significantly correlated with both cohort membership and an outcome variable. Highly skewed dependent variables – substance use and traditional 12-step attendance - were log-transformed. Clinic retention was analyzed using survival analysis based on Cox regression.

3. Results

3.1. Study condition assignment

A total of 481 patients enrolling into the CDTP were screened for the study; 169 were screened prior to the implementation of DTR and 312 after DTR implementation (Figure 1). Of these, 229 patients met eligibility criteria, consented to participate, and completed the baseline interview. There were no significant differences between the cohorts in percent who refused or the distribution of reasons for refusal.

Figure 1
Study flow of participants

3.2. Sample characteristics

Characteristics at study intake are shown in Table 1.

Table 1
Sample characteristics at study intake

Homogeneity of the cohorts was determined by comparing them on study intake characteristics. Pre-DTR subjects compared with Post-DTR subjects were significantly more likely to be unstably housed and to have received an “other mood disorder Axis I disorder by a CDTP psychiatrist. These two factors, however, were unrelated to any of the outcomes. The Pre-DTR cohort was also less adherent to psychiatric medication than the Post-DTR cohort; this factor is controlled in the analysis.

3.3. Follow-up

Eighty-two percent of the (187/229) of the subjects were interviewed for their 6 month follow-up; 83% of the Pre-DTR cohort, 81% of the Post-DTR cohort (n.s.). Among the subjects not followed-up, 35 were lost to contact, 2 transferred, 2 withdrew consent, 1 was too physically ill, and 1 died. Subjects who did not complete the six-month follow-up interview attended fewer traditional 12-step groups prior to baseline (1.1 vs. 6.9, t= − 3.85, p < .001) and were less likely to have a history of drug abuse treatment (57% vs. 80%, Chi-Square= 9.07, p = .003).

3.4. DTR attendance

Post-DTR subjects were encouraged but not mandated to attend the DTR group(s). (Other patients at the CDTP could also attend if they wished.) Of the 148 patients in the post-DTR cohort, 62% attended at least one DTR group and the mean number of groups attended was 3.2 (s.d. = 5.0, range 0–30). Reasons given on the six month interview for not attending were: scheduling conflict (20%), not interested (16%), insufficient awareness of DTR (9%), did not use drugs (7%), acute medical or psychiatric illness (5%); 19 (43%) had left the program before attending DTR or did not give a response. An average of 19 consumers (i.e., study and non-study CDTP patients) attended DTR on a weekly basis, with 30% on average being subjects in the Post-DTR cohort.

3.5. Outcomes

Results are shown in Table 2. At 6-month follow-up, the Post-DTR cohort had used drugs or alcohol on significantly fewer days, had attended traditional 12-step groups more frequently outside of the program, and had higher levels of psychiatric medication adherence, than the Pre-DTR cohort.

Table 2
Effect of Pre-DTR vs. Post-DTR Cohort on Outcomes

There was no cohort effect on psychiatric symptoms, and program retention at 6 months after enrollment did not differ significantly between the Pre-DTR (73%) and Post-DTR (66%) cohorts.

4. Discussion and Conclusions

This study is one of the few controlled designs evaluating mutual aid, and the only controlled study thus far evaluating dual focus mutual aid. Previous research has shown that mutual aid groups can complement, rather than compete with, professional mental health and addiction treatment (46, 47). The current study reinforces this conclusion and, despite its limitations, helps demonstrate the benefits of introducing 12-step, dual-focus mutual aid into psychiatric treatment programs that serve patients with COD.

The support of peers is a key element facilitating recovery from mental illness (19), and high level of social support has been associated with decreased substance use among persons participating in DTR (48). DTR is structured to create an accepting, non-judgmental environment where persons with active addictions and psychiatric diagnoses can identify with other members and explore their dual recovery needs (42).

Despite the positive outcomes achieved - decreased substance use, increased psychiatric medication adherence and increased 12-step meeting attendance outside the program - the degree of participation in DTR was somewhat disappointing. This was primarily due to logistical issues, however, rather than a lack of interest in DTR by patients. Early drop-out from the CDTP accounted for the largest proportion of non-attendance at DTR. This could have been avoided by limiting eligibility for the study to patients with a minimum length of study, say 3 months. However, it was believed clinically important to try to engage new patients as quickly as possible in DTR, partly for the objective of decreasing program drop-out. Unfortunately, this strategy did not succeed; program dropout appeared to be unaffected by the presence of DTR. Scheduling problems were the second most frequent reason for non-attendance. We hoped, perhaps naively, that Post-DTR cohort subjects with morning CDTP schedules would nonetheless attend the afternoon DTR group as well (transportation was reimbursed by the study), but this usually did not occur. Unfortunately, it was not feasible in the first phase of the study to institute a second, morning DTR group due to program space limitations. Greater and/or more convenient availability of DTR meetings in a program would probably increase attendance.

Although it would be tempting to examine outcomes only for the DTR participants, this would violate the logic of the intent to treat efficacy design, since it is impossible to know which subjects in the Pre-DTR cohort would have attended DTR had it been available to them. The apparent effectiveness of DTR for all participants, both those in the Post-DTR cohort and other CDTP patients, was studied with survey methods and is being reported separately (49).

The limitations of the study are the modest level of DTR attendance, discussed above; the conduct of the study in only one treatment setting; and the quasi-experimental comparative design which is less advantageous than a true experimental design. A true experiment to evaluate DTR has been proposed by the study team as a further step in this continuing line of research.

Acknowledgments

Funded by: Grant #5R01DA015912 from the National Institute on Drug Abuse

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