Clinical psychology review
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Review Meta Analysis
Depression and resting state heart rate variability in children and adolescents - A systematic review and meta-analysis.
Among adults, depression is associated with reduced vagal activity, as indexed by high frequency heart rate variability [HF-HRV]), which correlates inversely with depression severity. Available evidence in depressed children and adolescents remains to be reviewed systematically. ⋯ While no correlation between HF-HRV and depressive symptom severity was observed (r=-.041 [-0.143; 0.062]), these additional correlational findings are limited to non-clinical samples. Findings have important clinical implications including a potentially increased risk for future physical ill health and also the identification of potential new treatment targets in child and adolescent depression.
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Review Meta Analysis
Effectiveness of online mindfulness-based interventions in improving mental health: A review and meta-analysis of randomised controlled trials.
Mindfulness-based interventions (MBIs) are increasingly being delivered through the Internet. Whereas numerous meta-analyses have investigated the effectiveness of face-to-face MBIs in the context of mental health and well-being, thus far a quantitative synthesis of the effectiveness of online MBIs is lacking. The aim of this meta-analysis was to estimate the overall effects of online MBIs on mental health. ⋯ Effect sizes, however, were not significantly related to study quality. The findings indicate that online MBIs have potential to contribute to improving mental health outcomes, particularly stress. Limitations, directions for future research and practical implications are discussed.
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Caregivers of terminally ill patients may experience anticipatory grief or low levels of preparedness for the patient's impending death. Both concepts are related to a forewarning of the impending loss. Anticipatory grief has been suggested to be grief work before the loss, which would improve bereavement outcome, but recent studies indicate a negative impact. Hence, this review systematically investigates key issues relating to anticipatory grief and preparedness for the death; definitions, measurement tools, and potential effects on caregiver outcome. ⋯ The assumptions that grief work before the loss would alleviate bereavement outcome was not confirmed. Thus, the concept of anticipatory grief is questioned. High preparedness was associated with improved caregiver outcome. Additional support should be given to caregivers with pre-loss grief and low preparedness.
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Review Meta Analysis
Systematic review and meta-analysis of transdiagnostic psychological treatments for anxiety and depressive disorders in adulthood.
A broad array of transdiagnostic psychological treatments for depressive and anxiety disorders have been evaluated, but existing reviews of this literature are restricted to face-to-face cognitive behavioural therapy (CBT) protocols. The current meta-analysis focused on studies evaluating clinician-guided internet/computerised or face-to-face manualised transdiagnostic treatments, to examine their effects on anxiety, depression and quality of life (QOL). Results from 50 studies showed that transdiagnostic treatments are efficacious, with large overall mean uncontrolled effects (pre- to post-treatment) for anxiety and depression (gs=.85 and .91 respectively), and medium for QOL (g=.69). ⋯ Treatment delivery format influenced outcomes for anxiety (uncontrolled ESs: group: g=.70, individual: g=.97, computer/internet: g=.96) and depression (uncontrolled ESs: group: g=.89, individual: g=.86, computer/internet: g=.96). Preliminary evidence from 4 comparisons with disorder-specific treatments suggests that transdiagnostic treatments are as effective for reducing anxiety, and may be superior for reducing depression. These findings show that transdiagnostic psychological treatments are efficacious, but higher quality research studies are needed to explore the sources of heterogeneity amongst treatment effects.
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Review Meta Analysis
How do mindfulness-based cognitive therapy and mindfulness-based stress reduction improve mental health and wellbeing? A systematic review and meta-analysis of mediation studies.
Given the extensive evidence base for the efficacy of mindfulness-based stress reduction (MBSR) and mindfulness-based cognitive therapy (MBCT), researchers have started to explore the mechanisms underlying their therapeutic effects on psychological outcomes, using methods of mediation analysis. No known studies have systematically reviewed and statistically integrated mediation studies in this field. The present study aimed to systematically review mediation studies in the literature on mindfulness-based interventions (MBIs), to identify potential psychological mechanisms underlying MBCT and MBSR's effects on psychological functioning and wellbeing, and evaluate the strength and consistency of evidence for each mechanism. ⋯ TSSEM demonstrated evidence for mindfulness, rumination and worry as significant mediators of the effects of MBIs on mental health outcomes. Most reviewed mediation studies have several key methodological shortcomings which preclude robust conclusions regarding mediation. However, they provide important groundwork on which future studies could build.