Can smartphone mental health interventions reduce symptoms of anxiety? A meta-analysis of randomized controlled trials
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Abstract
BACKGROUND: Various psychological interventions are effective for reducing symptoms of anxiety when used alone, or as an adjunct to anti-anxiety medications. Recent studies have further indicated that smartphone-supported psychological interventions may also reduce anxiety, although the role of mobile devices in the treatment and management of anxiety disorders has yet to be established. METHODS: We conducted a systematic review and meta-analysis of all randomized clinical trials (RCTs) reporting the effects of psychological interventions delivered via smartphone on symptoms of anxiety (sub-clinical or diagnosed anxiety disorders). A systematic search of major electronic databases conducted in November 2016 identified 9 eligible RCTs, with 1837 participants. Random-effects meta-analyses were used to calculate the standardized mean difference (as Hedges' g) between smartphone interventions and control conditions. RESULTS: Significantly greater reductions in total anxiety scores were observed from smartphone interventions than control conditions (g=0.325, 95% C.I.=0.17-0.48, p<0.01), with no evidence of publication bias. Effect sizes from smartphone interventions were significantly greater when compared to waitlist/inactive controls (g=0.45, 95% C.I.=0.30-0.61, p<0.01) than active control conditions (g=0.19, 95% C.I.=0.07-0.31, p=0.003). LIMITATIONS: The extent to which smartphone interventions can match (or exceed) the efficacy of recognised treatments for anxiety has yet to established. CONCLUSIONS: This meta-analysis shows that psychological interventions delivered via smartphone devices can reduce anxiety. Future research should aim to develop pragmatic methods for implementing smartphone-based support for people with anxiety, while also comparing the efficacy of these interventions to standard face-to-face psychological care.
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The record
- Venue
- Journal of Affective Disorders
- Topic
- Digital Mental Health Interventions
- Field
- Psychology
- Canadian institutions
- —
- Funders
- Economic and Social Research CouncilNational Health and Medical Research CouncilMedical Research Council Canada
- Keywords
- AnxietyRandomized controlled trialMental healthMeta-analysisPsychological interventionPsychologyPsychiatryClinical psychologyMedicineInternal medicine
- Has abstract in OpenAlex
- yes