TY - JOUR
T1 - Coping strategies as a mediator of internet-delivered psychosocial treatment
T2 - Secondary analysis from a NIDA CTN multisite effectiveness trial
AU - Lévesque, Annie
AU - Campbell, Aimee N.C.
AU - Pavlicova, Martina
AU - Hu, Mei Chen
AU - Walker, Robrina
AU - McClure, Erin A.
AU - Ghitza, Udi E.
AU - Bailey, Genie
AU - Stitzer, Maxine
AU - Nunes, Edward V.
N1 - Publisher Copyright:
© 2016
PY - 2017/2/1
Y1 - 2017/2/1
N2 - Objective Coping strategies are a predictor of abstinence among patients with substance use disorders. However, little is known regarding the role of coping strategies in the effectiveness of the Community Reinforcement Approach (CRA). Using data from a 12 week randomized control trial assessing the effectiveness of the Therapeutic Education System (TES), an internet-delivered version of the CRA combined with contingency management, we tested the role of coping strategies as a mediator of treatment effectiveness. Methods 507 participants entering 10 outpatient addiction treatment programs received either treatment-as-usual (TAU), a counselor-delivered treatment (Arm 1), or reduced TAU plus TES wherein 2 h of TAU per week were replaced by TES (Arm 2). Abstinence from drugs and alcohol was evaluated using urine toxicology and self-report. Coping strategies were measured using the Coping Strategies Scale-Brief Version. Mediation analyses were done following Baron and Kenny's and path analysis approaches. Results The average baseline coping strategies scores were not significantly different between the two treatment arms. Overall, TES intervention was significantly associated with higher coping strategies scores when accounting for baseline scores (F1,1342 = 8.3, p = 0.004). Additionally, higher coping strategies scores at week 12 were associated with an increased likelihood of abstinence during the last 4 weeks of the treatment, while accounting for treatment assignment and baseline abstinence. The effect of TES intervention on abstinence was no longer significant after controlling for coping strategies scores at week 12. Conclusion Our results support the importance of coping skills as a partial mediator of the effectiveness of an internet-version of the CRA combined with contingency management.
AB - Objective Coping strategies are a predictor of abstinence among patients with substance use disorders. However, little is known regarding the role of coping strategies in the effectiveness of the Community Reinforcement Approach (CRA). Using data from a 12 week randomized control trial assessing the effectiveness of the Therapeutic Education System (TES), an internet-delivered version of the CRA combined with contingency management, we tested the role of coping strategies as a mediator of treatment effectiveness. Methods 507 participants entering 10 outpatient addiction treatment programs received either treatment-as-usual (TAU), a counselor-delivered treatment (Arm 1), or reduced TAU plus TES wherein 2 h of TAU per week were replaced by TES (Arm 2). Abstinence from drugs and alcohol was evaluated using urine toxicology and self-report. Coping strategies were measured using the Coping Strategies Scale-Brief Version. Mediation analyses were done following Baron and Kenny's and path analysis approaches. Results The average baseline coping strategies scores were not significantly different between the two treatment arms. Overall, TES intervention was significantly associated with higher coping strategies scores when accounting for baseline scores (F1,1342 = 8.3, p = 0.004). Additionally, higher coping strategies scores at week 12 were associated with an increased likelihood of abstinence during the last 4 weeks of the treatment, while accounting for treatment assignment and baseline abstinence. The effect of TES intervention on abstinence was no longer significant after controlling for coping strategies scores at week 12. Conclusion Our results support the importance of coping skills as a partial mediator of the effectiveness of an internet-version of the CRA combined with contingency management.
KW - Behavioral therapies
KW - Community reinforcement approach
KW - Coping strategies
KW - Internet-delivered treatment
KW - Substance use disorders
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U2 - 10.1016/j.addbeh.2016.09.012
DO - 10.1016/j.addbeh.2016.09.012
M3 - Article
C2 - 27776269
AN - SCOPUS:84992337681
SN - 0306-4603
VL - 65
SP - 74
EP - 80
JO - Addictive Behaviors
JF - Addictive Behaviors
ER -