Smartphone screen time reduction improves mental health: a randomized controlled trial
Pieh C, Humer E, Hoenigl A, Schwab J, Mayerhofer D, Dale R, Haider K
BMC medicine · 26 citas
Etiquetas de revisión
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2025-02-21 · BMC Med · vol. 23 · número 1 · pág. 107
- Editorial
- BioMed Central
- Citado
- 49 citas · más que el 100% de estudios similares · 89.6× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 76 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY-NC-ND
- Áreas de investigación
- Impact of Technology on Adolescents · Child Development and Digital Technology · Physical Activity and Health
- Palabras clave
- smartphone screen time, screen time reduction, mental health, depressive symptoms, stress, well-being, sleep quality, university students, digital detox, social media use, physical activity
- MeSH
- humans, depression, stress, psychological, mental health, students, adult, female, male, young adult, smartphone, screen time, sleep quality
7 autores
- Christoph Pieh🇦🇹 · autor de correspondenciaUniversität für Weiterbildung Krems
- Elke Carina Humer🇦🇹Universität für Weiterbildung Krems
- Andreas Hoenigl🇦🇹Danube Private University
- Julia Schwab🇦🇹Danube Private University
- Doris Mayerhofer🇦🇹Universität für Weiterbildung Krems
- Rachel Dale🇦🇹Universität für Weiterbildung Krems
- Katja Haider🇦🇹Universität für Weiterbildung Krems
Resumen
El texto original del estudio, en el idioma en que se publicó.
Background
Smartphone screen time has risen sharply in recent years. Even though an association between smartphone use and mental health is well documented, it is still unclear whether this is simply a correlation or causality. The aim of this study is to investigate the effects of smartphone screen time reduction on mental health indicators.
Methods
This non-blinded, parallel randomized controlled trial (RCT) was performed to investigate the impact of a 3-week screen time reduction to ≤ 2 h/d in healthy students on stress (PSQ), well-being (WHO-5), depressive symptoms (PHQ-9), and sleep quality (ISI) at baseline (t0), post-intervention (t1), and at follow-up (t2 = 6 weeks after t1). For the intention to treat analysis, repeated measures ANOVAs and post-hoc tests (for time as well as group differences) were performed and effect sizes were presented as partial eta squared (η2 = time × group) and group-mean differences.
Results
In total, 111 out of 125 healthy students (70 females; mean age = 22.68 ± 2.6 years; mean screen time = 276 ± 115.1 min/day) were randomly assigned to intervention-(n = 58; 3 weeks of screen time reduction to ≤ 2 h/day) or control group (n = 53). Although no differences were observed at baseline (t0), significant post-intervention (t1) effects of small to medium size were observed on well-being (η2 = .053), depressive symptoms (η2 = .109), sleep quality (η2 = .048), and stress (η2 = .085). Significant group differences (p ≤ .05) were found post-intervention (t1) for depressive symptoms (Mean Difference (MD) = 2.11, Standard Error (SE) = 0.63, 95% Confidence Interval (CI) [0.87, 3.36]), sleep quality (MD = 2.59, SE = 0.97, 95% CI [0.66, 4.51]), well-being (MD = -1.54, SE = 0.68, 95% CI [.-2.89, -0.18]), and stress (MD = 6.91, SE = 3.48, 95% CI [0.01, 13.81]). Screen time increased rapidly after the intervention and at follow-up the values were once again approaching the initial level.
Conclusions
The study highlights mental health improvements through smartphone screen time reduction. Three weeks of screen time reduction showed small to medium effect sizes on depressive symptoms, stress, sleep quality, and well-being. The results suggest a causal relationship, rather than a merely correlative one, between daily smartphone screen time and mental health.
Trial registration
The study was preregistered on Open Science Framework (trial registration number: A9K76) on November 8, 2023.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial (CC BY-NC-ND).
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