Behavioral Activation for the PreVention of Post-strokE Depression in LoW-incomE Older Stroke Survivors

Post-stroke depression (PSD) affects an estimated 33% of survivors. Subthreshold depression (SD; clinically relevant depressive symptoms that do not meet diagnostic criteria for a clinical disorder) can affect up to 60% of stroke survivors and, if untreated, likely progresses to PSD. PSD is associated with recurrent stroke, mortality (including suicide), neurological deficits, and diminished functioning and quality of life (QOL). Older survivors are at particularly high risk for PSD owing to age-related life stressors (e.g., chronic disabilities and conditions, polypharmacy, bereavement, and dependence on others). For low-income, older stroke survivors, financial strain is an added risk factor for PSD. Treating SD may prevent PSD. However, first-line pharmacological treatment for PSD prevention can be problematic for older survivors who may fear dependency and can be sensitive to adverse effects and drug-drug interactions. Behavioral activation (BA) is an efficacious depression treatment that increases engagement in value-based, reinforcing activities and decreases avoidance behaviors. BA does not require licensed therapists, is less costly and as effective as cognitive therapy for reducing depression, and can be modified to effectively target behaviors that have been empirically associated with risk for PSD. The overall objective of the proposal is to determine the effectiveness of tele-delivered BA by trained lay counselors (Tele-BA-S) to prevent PSD in low-income, older stroke survivors with SD. A randomized controlled trial will be conducted (Tele-BA-S vs. treatment-as-usual [TAU]; n=294) with follow-up at 2-months, 4-months, 6-months, and 9-months after baseline to test the short- and long-term effectiveness of Tele-BA-S. Participants will be low-income, older (≥ 55 years) first-time ischemic or hemorrhagic survivors (≤ 3 months after stroke) with SD. The intervention will comprise 5 weekly video-conferenced BA sessions delivered by trained lay counselors, homework, and 2 monthly follow-up booster calls. Aim 1 is to test the effectiveness of Tele-BA-S vs. TAU on reducing symptoms of SD and the proportion of survivors that develop PSD (primary clinical outcome). Aim 2 is to test the effectiveness of Tele-BA-S vs TAU on reducing anxiety, emotional distress, and healthcare visits and improving QOL and disability (secondary outcomes). Aim 3 is to investigate self-efficacy, motivation, and activity engagement as mediators of Tele-BA-S effectiveness for reducing symptoms of SD and the proportion of survivors that develop PSD.