An umbrella review of the benefits and risks associated with youths' interactions with electronic screens.
Thomas Astell-BurtMichael NoetelPhilip ParkerBorja Del Pozo CruzStuart J H BiddleRimante RontoRyan M HulteenRhiannon Bree ParkerGeorge ThomasKatrien De CockerJo SalmonKylie D HeskethNicole WeeksHugh ArnottEmma Krogh DevineRoberta VasconcellosRebecca PaganoJamie ShersonJames H ConigraveChris LonsdalePublished in: Nature human behaviour (2023)
The influence of electronic screens on the health of children and adolescents and their education is not well understood. In this prospectively registered umbrella review (PROSPERO identifier CRD42017076051 ), we harmonized effects from 102 meta-analyses (2,451 primary studies; 1,937,501 participants) of screen time and outcomes. In total, 43 effects from 32 meta-analyses met our criteria for statistical certainty. Meta-analyses of associations between screen use and outcomes showed small-to-moderate effects (range: r = -0.14 to 0.33). In education, results were mixed; for example, screen use was negatively associated with literacy (r = -0.14, 95% confidence interval (CI) = -0.20 to -0.09, P ≤ 0.001, k = 38, N = 18,318), but this effect was positive when parents watched with their children (r = 0.15, 95% CI = 0.02 to 0.28, P = 0.028, k = 12, N = 6,083). In health, we found evidence for several small negative associations; for example, social media was associated with depression (r = 0.12, 95% CI = 0.05 to 0.19, P ≤ 0.001, k = 12, N = 93,740). Limitations of our review include the limited number of studies for each outcome, medium-to-high risk of bias in 95 out of 102 included meta-analyses and high heterogeneity (17 out of 22 in education and 20 out of 21 in health with I 2 > 50%). We recommend that caregivers and policymakers carefully weigh the evidence for potential harms and benefits of specific types of screen use.
Keyphrases
- meta analyses
- healthcare
- systematic review
- social media
- high throughput
- health information
- randomized controlled trial
- public health
- mental health
- human health
- quality improvement
- depressive symptoms
- dna methylation
- single cell
- skeletal muscle
- health promotion
- gene expression
- high intensity
- metabolic syndrome
- tyrosine kinase