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App-supported smartphone interventions effective for common mental health problems

30 Sep 2019

Mental health smartphone applications (apps) help improve a range of outcomes, including depressive and generalized anxiety symptoms and stress levels, with small-to-moderate effect sizes, according to a meta-analysis.

Researchers searched multiple online databases for randomized controlled trials evaluating the efficacy of smartphone interventions designed to improve mental health or general well‐being in comparison with control conditions (eg, waitlist, assessment only, treatment as usual, informational and educational resources, or attention/placebo controls).

The meta-analysis included 66 trials with 77 smartphone intervention conditions. Most of the apps tested were based on cognitive and/or behavioural principles (n=35) and/or acceptance‐ or mindfulness‐based principles (n=38).

Pooled data revealed that app-supported smartphone interventions performed significantly better than control conditions in terms of improving the following: depressive (g=0.28; n=54) and generalized anxiety (g=0.30; n=39) symptoms, stress levels (g=0.35; n=27), quality of life (g=0.35; n=43), general psychiatric distress (g=0.40; n=12), social anxiety symptoms (g=0.58; n=6), and positive affect (g=0.44; n=6). Effect sizes ranged from small to moderate and proved to be robust to common biasing factors in trials, including the type of control condition, trial risk of bias rating and publication bias.

However, the smartphone interventions conferred no significant benefit for panic symptoms (g=–0.05; n=3), post‐traumatic stress symptoms (g=0.18; n=4) and negative affect (g=–0.08; n=5).

Cognitive behaviour therapy‐based apps, used with professional guidance and reminders to engage, produced larger effects on multiple outcomes. More importantly, they exerted effects comparable to that obtained with active interventions (eg, face‐to‐face and computerized treatment), although the number of studies was low (n≤13).

The researchers pointed out that although mental health apps are not intended to replace professional clinical services, such apps have the potential to serve as a cost‐effective, easily accessible and low-intensity intervention for the millions of people worldwide who cannot receive standard psychological treatment.

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Most Read Articles
6 days ago
Older women with longer endogenous oestrogen exposure and hormone therapy use are at much higher odds of having favourable cognitive status in late life, a recent study suggests.
4 days ago
In patients with atrial fibrillation (AF) and stable coronary artery disease (CAD), rivaroxaban monotherapy is noninferior to combination treatment with an antiplatelet therapy in terms of cutting the risk of cardiovascular events and mortality, according to data from the AFIRE trial.
Elvira Manzano, 5 days ago
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