Mindfulness-based cognitive therapy (MBCT) plus treatment as usual, compared to treatment as usual alone, improved positive mental health in adults with ADHD at 6-month follow-up through increased self-compassion, but reductions in ADHD symptoms were not mediated by mindfulness skills or self-compassion. Additional analyses suggested that improvements in self-reported inhibition mediated the reduction in ADHD symptoms. The effect of MBCT on ADHD symptoms and positive mental health thus occurred via different mechanisms.
Mindfulness-based cognitive therapy (MBCT) and an individual internet-based version (eMBCT) both reduced psychological distress in cancer patients more than treatment as usual (TAU). In a randomized trial of 245 distressed cancer patients, those receiving MBCT or eMBCT reported significantly less distress post-intervention (Cohen's d = .45 and .71, respectively). Both interventions also reduced fear of cancer recurrence and rumination, and improved mental health-related quality of life, mindfulness skills, and positive mental health compared to TAU. Physical health-related quality of life did not improve. Post-treatment psychiatric diagnosis prevalence was lower with MBCT (33% improvement) and eMBCT (29% improvement) versus TAU (16%), but these differences were not statistically significant.