Effects of added involvement from concerned significant others in internet-delivered CBT treatments for problem gambling: study protocol for a randomised controlled trial

Treatment for the concerned significant others of gamblers: A systematic review

BACKGROUND AND AIMS

Research recognizes the extent of harm experienced by concerned significant others (CSOs) of gamblers. This systematic review's aims are to examine the interventions for CSOs, evaluate potential benefits, and thematically describe treatment processes. The Stress-Strain-Coping-Support model (SSCS) served as the theoretical framework.

METHODS

Database searches were conducted in: MEDLINE, CINAHL Complete, Web of Science Core Collection, Social Services Abstracts, Applied Social Science Index and Abstracts, Cochrane Central Register of Controlled Trials, and APA PsycInfo (between 01/Jan 2011-10/Jun 2021). Other search methods were also utilized. Inclusion criteria: interventions for CSOs with CSO specific outcomes. The Evidence Project Risk of Bias Tool was used for assessment.

RESULTS

19/768 records were included. Nine interventions were utilized: 3 CSO directed, 4 for couples, and 2 low threshold online interventions. A quantitative synthesis (N = 7 studies) of effect size estimates for depression and anxiety measures didn't indicate any intervention to have better outcomes than others. Core themes in the treatment process identified in the qualitative synthesis (N = 7) included: information and understanding, social support, coping skills, communication, and strain. Limitations in the evidence related to sampling, control-conditions and outcome measurements.

DISCUSSION AND CONCLUSION

Several interventions were identified, yet no specific interventions appeared more beneficial than others. Using the SSCS model, commonalities and differences in intervention content were identified, along with themes that influence treatment processes. The need for tailored interventions is discussed. Future treatment efficacy research should carefully select study designs and outcome measurements. PROSPERO (CRD42021229408).

Reasons for dropping out of internet-based problem gambling treatment, and the process of recovery – a qualitative assessment

Problem gambling (PG) is a condition affecting the economy, mental health, and relationships of both the individuals with gambling problems, and concerned significant others (CSOs). While PG is treatable, few individuals with gambling problems seek treatment, and many drop out of treatment. This qualitative study aims to investigate a) the reasons for individuals with gambling problems to drop-out from Internet-based PG treatment, and b) what individuals with gambling problems and CSOs find helpful and unhelpful processes in PG recovery. A total of 16 participants (8 individuals with gambling problems and 8 CSOs) who had participated in an Internet-based PG treatment were interviewed over the telephone in a semi-structured interview. The interviews were analyzed using thematic analysis. Drop-out from treatment was one aspect of an overarching theme identified as unstable path to recovery, where alternating periods of progress and setbacks delineate several aspects of PG. Relapses, negative emotions, and changing life circumstances were identified to separately, and in combination, contribute to drop-out. Drop-outs were also explained by participants’ experiences of a reduced need for treatment. Openness and a support from CSOs and peers were identified as themes important for recovery. The results suggest that PG treatments should consider the emotional state, and comorbidities of the patients, in order to reduce drop-out and improve chances of recovery.

Behavioral couples therapy versus cognitive behavioral therapy for problem gambling: a randomized controlled trial

Background and aims

There is evidence that cognitive behavioral therapy (CBT) is effective for treating problem gambling (PG). Some research points to the possible benefits of involving concerned significant others (CSOs) in treatment. This study compared the efficacy of behavioral couples therapy (BCT) and CBT for both the gambler and the CSO.

Design

Two parallel‐group randomized controlled study comparing two different internet‐based treatments for PG. Follow‐up measures were conducted at treatment finish, and at 3‐, 6‐ and 12‐month post‐treatment.

Setting

Stockholm, Sweden.

Participants

A total of 136 problem gamblers and 136 CSOs were included in the study: 68 gamblers and 68 CSOs for each treatment condition. The gamblers were on average 35.6 years old and 18.4% were female. CSOs were on average 45.3 years old and 75.7% were women.

Interventions

A treatment based on BCT was compared with a CBT intervention. Both treatments were internet‐based, with 10 therapist‐guided self‐help modules accompanied by weekly telephone and e‐mail support from a therapist. CSOs were given treatment in the BCT condition, but not in the CBT condition.

Measurements

The primary outcome measures were time‐line follow‐back for gambling (TLFB‐G) and the NORC Diagnostic Screen for Gambling Problems (NODS) for problem gamblers, corresponding to DSM‐IV criteria for pathological gambling. Secondary outcomes measures were the Patient Health Questionnaire‐9 (PHQ‐9), the Generalized Anxiety Disorder seven‐item scale (GAD‐7), the Relation Assessment Scale Generic (RAS‐G), the Alcohol Use Disorders Identification Test (AUDIT), the Inventory of Consequences of Gambling for the Gambler and CSO (ICS) and adherence to treatment for both the problem gambler and the CSO.

Findings

The outcomes of both gambler groups improved, and differences between the groups were not statistically significant: TLFB‐G: multiplicative effect = 1.13, 95% confidence interval (CI) = 0.30;4.31); NODS: multiplicative effect = 0.80, 95%, 95% CI = 0.24;2.36. BCT gamblers began treatment to a higher proportion than CBT gamblers: P = 0.002.

Conclusions

Differences in the efficacy of internet‐based behavioral couples therapy and cognitive behavioral therapy for treatment of problem gambling were not significant, but more gamblers commenced treatment in the behavioral couples therapy group.

Level of Agreement Between Problem Gamblers' and Collaterals' Reports: A Bayesian Random-Effects Two-Part Model

This study investigates the level of agreement between problem gamblers and their concerned significant others (CSOs) regarding the amount of money lost when gambling. Reported losses were analyzed from 266 participants (133 dyads) seeking treatment, which included different types of CSO-gambler dyads. The intraclass correlation coefficients (ICCs) concerning the money lost when gambling during the last 30 days were calculated based on the timeline followback. In order to model reports that were highly skewed and included zeros, a two-part generalized linear mixed-effects model was used. The results were compared from models assuming either a Gaussian, two-part gamma, or two-part lognormal response distribution. Overall, the results indicated a fair level of agreement, ICC = .57, 95% CI (.48, .64), between the gamblers and their CSOs. The partner CSOs tended to exhibit better agreement than the parent CSOs with regard to the amount of money lost, ICCdiff = .20, 95% CI (.03, .39). The difference became smaller and inconclusive when reports of no losses (zeros) were included, ICCdiff = .16, 95% CI (- .05, .36). A small simulation investigation indicated that the two-part model worked well under assumptions related to this study, and further, that calculating the ICCs under normal assumptions led to incorrect conclusions regarding the level of agreement for skewed reports (such as gambling losses). For gambling losses, the normal assumption is unlikely to hold and ICCs based on this assumption are likely to be highly unreliable.

The Development of an Internet-Based Treatment for Problem Gamblers and Concerned Significant Others: A Pilot Randomized Controlled Trial

Problem gambling creates significant harm for the gambler and for concerned significant others (CSOs). While several studies have investigated the effects of individual cognitive behavioral therapy (CBT) for problem gambling, less is known about the effects of involving CSOs in treatment. Behavioral couples therapy (BCT) has shown promising results when working with substance use disorders by involving both the user and a CSO. This pilot study investigated BCT for problem gambling, as well as the feasibility of performing a larger scale randomized controlled trial. 36 participants, 18 gamblers and 18 CSOs, were randomized to either BCT or individual CBT for the gambler. Both interventions were Internet-delivered self-help interventions with therapist support. Both groups of gamblers improved on all outcome measures, but there were no differences between the groups. The CSOs in the BCT group lowered their scores on anxiety and depression more than the CSOs of those randomized to the individual CBT group did. The implications of the results and the feasibility of the trial are discussed.