A meta-analysis of 19 studies involving 1,480 pregnant women found that mindfulness-based interventions reduced depression compared to control groups, with a moderate effect size (g = 0.457). Mindfulness-based cognitive therapy showed a larger effect (g = 1.13) than mindfulness-based stress reduction (g = 0.64) or adapted interventions (g = 0.31). The findings suggest these programs, especially MBCT, are effective complementary treatments for depression during pregnancy.
A meta-analysis of 24 studies with 1,632 participants found that mindfulness-based interventions reduced psychotic symptoms, improved global functioning, insight, and mindfulness in people with schizophrenia spectrum disorders compared to control groups. Effects were large for functioning and insight but varied substantially across studies. Older age was linked to worse psychotic symptoms, while more days of practice improved symptoms, functioning, and insight. Mixed-format interventions (individual plus group) and those including home assignments yielded greater improvements in insight. No adverse effects were reported. The findings suggest mindfulness-based interventions may be a useful complementary treatment for schizophrenia.
A meta-analysis of 25 randomized controlled trials involving 2,263 cancer patients found that mindfulness-based interventions moderately improve sleep quality (effect size g = 0.598). Participants' mean age was 53.70 years, and most were male. Funding source and timing of outcome measurement influenced the effect size. No adverse effects were reported. Mindfulness-based interventions are a viable complementary treatment for sleep problems in cancer patients.