Rehabilitation Psychology, Vol 68(3), Aug 2023, 261-270; doi:10.1037/rep0000507
Purpose/Objective: To examine the impact of three behavioral interventions for chronic pain on substance use. Research Method/Design: Participants were 328 Veterans with chronic pain receiving care at one of two Veterans Affairs Medical Centers in the northwest United States. Participants were randomly assigned to one of three 8-week manualized in-person group treatments: (a) hypnosis (HYP), (b) mindfulness meditation (MM), or (c) active education control (ED). Substance use frequency was assessed using 10 individual items from the WHO-ASSIST, administered at baseline prior to randomization and at 3- and 6-month posttreatment. Results: Baseline substance use (i.e., any use) in the past 3 months was reported by 22% (tobacco), 27% (cannabis), and 61% (alcohol) of participants. Use of all other substances assessed was reported by