The Correlation between Methadone Dosages among Pairs of Heroin Users in Romantic Relationships and among Pairs of Heroin Users Who Are Siblings

Dual-substance use disorder couples: An integrative review and proposed theoretical model

Committed romantic relationships between two individuals with Substance Use Disorder (or dual-SUD couples) are prevalent. Dual-SUD couples have poor treatment engagement and outcomes. Research has established a reciprocal link between relationship dynamics (e.g., conflict, intimacy) and substance use. Thus, the couple's relationship presents a distinct social context for both partner's substance use. Dual-SUD couples face unique challenges due to substance use being a shared behavior that may serve as a rewarding source of compatibility, closeness, and short-term relationship satisfaction despite it being at the cost of other alternative sources of substance-free reinforcement. Yet, treatment options for these couples are scarce. Dual-maladaptive health behaviors (e.g., dual-substance use) are challenging to treat; however, theory and preliminary research suggests that transformation of couple's joint motivation toward adaptive health behavior change may result in a more satisfying relationship and improved treatment outcomes for both individuals. The current paper reviews the extant literature on dual-SUD couples from theoretical, empirical, and treatment research and proposes an expanded paradigm regarding how we understand dual-SUD couples with the aim of informing basic research and treatment development.

Associations between relationship quality and treatment-related stress among couples receiving methadone for opioid use disorder

BACKGROUND

Social relationships may buffer or exacerbate stress among patients receiving methadone treatment for opioid use disorder (OUD). Little is known, however, about how relationship quality is linked to treatment-related stress among couples in which both partners receive methadone. We considered the links between relationship quality and treatment-related stress among couples in methadone treatment for OUD.

METHODS

Participants for this cross-sectional observational study included 60 heterosexual married or cohabiting couples aged 18 and older drawn from two opioid treatment programs in Rhode Island and Massachusetts. Both partners completed a self-administered survey which assessed their sociodemographic information, relationship and treatment characteristics, and perceived treatment-related stress. We estimated actor-partner interdependence models to evaluate the links between each partner's perceptions of relationship quality (with their partner and their closest family member or friend) and treatment-related stress.

RESULTS

When their partners reported a more positive partner relationship, women had lower treatment-related stress. When women reported a more positive relationship with their own closest family member or friend, both women and their partners had lower treatment-related stress. When men perceived a more positive relationship with their closest family member or friend, their partners reported greater treatment-related stress. Negative relationship quality was not significantly linked to treatment-related stress.

CONCLUSIONS

This study highlights the importance of considering how social relationship quality might impact the experiences of couples receiving methadone for OUD. In particular, women's close relationships may help to mitigate treatment-related stress.

Dyadic associations between relationship quality and risk of opioid use among couples receiving methadone for opioid use disorder

BACKGROUND

Social relationships may serve as both protective factors and risk factors for opioid use (nonmedical prescription opioid or illicit opioid use) among patients receiving methadone for opioid use disorder (OUD). Yet little is known about how relationship quality is linked to outcomes among couples receiving methadone. We evaluated the links between relationship quality and risk of opioid use among couples in which both partners received methadone.

METHODS

Participants included 53 heterosexual married or cohabiting couples aged 18 and older who were drawn from two opioid treatment programs in Rhode Island and Massachusetts. Both members of the couple completed a self-administered survey assessing their sociodemographic information, relationship and treatment characteristics, and risk of opioid use.

RESULTS

Roughly half of women (47.2%) and men (52.8%) had a moderate to high risk of nonmedical prescription opioid use and almost two-thirds (64.2%) had a moderate to high risk of street opioid use. Risk of street opioid use was highly correlated within couples. Actor-partner interdependence models revealed that when women reported higher positive relationship quality, they had a lower risk of nonmedical prescription opioid use and their partners had a lower risk of street opioid use. Negative relationship quality was not significantly linked to risk of opioid use.

CONCLUSIONS

Couples in which both partners receive methadone for OUD may be at risk of return to use, and positive partner relationships may play a role in lowering this risk. Women's perceptions of relationship quality might be a particularly important target for clinical care and interventions.