Fig. 2
From: Smartphone screen time reduction improves mental health: a randomized controlled trial
Depression, stress, and sleep disorder symptoms and well-being at t0, t1, and t2 per group. Note. Significant between-group differences are indicated by asterisks (* p ≤ .05; ** p ≤ .01; *** p ≤ .001). PHQ-9: Patient Health Questionaire 9; ISI: Insomnia Severity Index; PSQ-20: Perceived Stress Questionnaire; WHO-5: World Health Organization well-being questionnaire; CG: control group; IG: intervention group; t0: baseline; t1: post-intervention; t2: follow-up. Error bars present 95% confidence intervals (CI)