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Abstract
Objective: Treatment engagement rates are low for individuals with comorbid posttraumatic stress disorder (PTSD) and alcohol use disorders across available interventions and treatment modalities. A better understanding of who does and does not engage in treatment can help improve retention, completion, and subsequent treatment outcomes. Methods: Forty female survivors of intimate partner violence with PTSD and alcohol use disorder participated in a randomized controlled trial comparing twenty-five 90-minute sessions of either modified Seeking Safety or Facilitated Twelve-Step in a community-based outpatient clinic. This study examined differences in demographics and pre-treatment PTSD symptoms and alcohol use between participants who engaged in treatment (attended ≥ 6 sessions, n = 18) and those who dropped out (n = 22). Results: There were no significant differences in PTSD or alcohol use disorder symptoms between treatment conditions. Women who engaged in therapy versus those who did not were significantly older (M = 46.2, SD = 9.14 vs. M = 38.95, SD = 10.49, respectively; p =.027), and had fewer dependents (M =.17, SD =.38, range = 0–1 vs. M =.95, SD = 1.66, range = 1–7, respectively; p =.046). Greater avoidance/numbing PTSD symptoms (OR = 1.13, p =.028, 95% CI [1.02–1.25]) and more years of heavy drinking (OR = 1.04, p =.03, 95% CI [1.00–1.07]) were also significantly associated with treatment engagement. Conclusions: This study replicates previous findings suggesting a need for additional retention strategies for younger women with dependents in comorbid PTSD and alcohol use disorder treatment. This is an analysis of data collected as part of a clinical trial registered as NCT00607412, at www.clinicaltrials.gov.