BACKGROUND: Acceptance and commitment therapy has shown to be effective in @entity1118 rehabilitation, and acceptance has been shown to be a key process of change. The influence of treatment dose on acceptance is not clear, and in particular, the effectiveness of a non-intensive treatment (<20 h) in a tertiary @entity158 clinic is required. PURPOSE: The purpose of the study was to assess the effectiveness of a low-intensity, acceptance and commitment therapy (ACT) group program for @entity1118 . The study sought to compare, at both groups and individual @entity1 levels, changes in acceptance with changes observed in previous ACT studies. METHODS: Seventy-one individuals with @entity1118 commenced a 9-week ACT-based group program at an outpatient @entity1118 service. In addition to acceptance, outcomes included the following: @entity158 catastrophizing, @entity308 , @entity148 , quality of life, and @entity158 -related @entity148 . To compare the current findings with previous research, effect sizes from seven studies were aggregated using the random-effects model to calculate benchmarks. Reliable change indices (RCIs) were applied to assess change on an individual @entity1 -level. RESULTS: The ACT intervention achieved a statistically significant increase in acceptance and medium effect size (d   =   0.54) at a group level. Change in acceptance was of a similar magnitude to that found in previous ACT studies that examined interventions with similar treatment hours (<20  h). Results across other outcome measures demonstrated small to medium effect sizes (d   =   0.01 to 0.48, mean   =   0.26). Reliable improvement in acceptance occurred in approximately one-third (37.2, 90  % CI) of @entity1 . Approximately three-quarters (74.3, 90  % CI) demonstrated reliable change in at least one of the outcome measures. CONCLUSIONS: The low-intensity, group-based ACT intervention was effective at a group level and showed a similar magnitude of change in acceptance to previous ACT studies employing low-intensity interventions. Three-quarters of @entity1 reported reliable change on at least one outcome measure.

Changes in Acceptance in a Low-Intensity, Group-Based Acceptance and Commitment Therapy (ACT) XXXX Intervention.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity308 :: ('MESH:D003866', 'Disease') :: ['depression'] @entity148 :: ('MESH:D001008', 'Disease') :: ['anxiety'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain'] @entity1118 :: ('MESH:D059350', 'Disease') :: ['chronic pain']
@entity1118 :: (MESH:D059350,Disease) :: ['Chronic Pain']
