No. of participants (No. of studies) | Design | Quality assessment | Absolute effect | Quality | ||||
---|---|---|---|---|---|---|---|---|
Risk of bias | Inconsistency | Indirectness | Imprecision | Other | ||||
The range of mean ages at time of exposure measurement was ~1 to 4.3 years; the oldest mean age at follow-up was ~12 years. Data were collected by randomized trial, cross-sectionally, and up to 9.5 years of follow-up. Psychosocial health measures were: aggression toward a sibling (assessed by the Aggressive Sibling Social Behavior Scale); aggressive behaviours/aggression, delinquent behaviours, total behaviour problems, externalizing problems, internalizing problems, emotional reactivity, anxious or depressed symptoms, and attention problems (assessed by the CBCL or Japanese CBCL); attentional problems (assessed by the hyperactivity subscale of the BPI); attention problems and hyperactivity (assessed by the BASC-2); bullying (assessed by unpublished questionnaire); co-operation, assertion, responsibility, self-control, and total social skills (assessed by the Social Skills Rating System); emotional symptoms/problems, conduct problems, hyperactivity-inattention, peer problems, and prosocial behaviour (assessed using the SDQ); self-esteem, emotional well-being, family functioning, and social networks (assessed using the KINDLR); social-emotional competence (assessed by the MIT-SEA); soothability, sociability, and emotionality (assessed by the CTQ); victimization, anxiety, physical aggression, and prosocial behaviour (assessed by the SBQ); and risk of being a bully, victim, or bully-victim (assessed by unpublished questionnaire). | ||||||||
412 (1) | Randomized triala | Serious risk of biasb | No serious inconsistency | No serious indirectness | No serious imprecision | None | Screen time c was significantly lower in the intervention vs control group at 2, 6, and 9 months post-interventiond. Aggressive and delinquent behaviours were not different between the intervention and control groups at baseline, but were significantly lower in the intervention vs control group at 9-months post-intervention [34]. | Moderatee |
13,301 (9) | Longitudinalf | Serious risk of biasg | No serious inconsistency | No serious indirectness | No serious imprecision | None | Screen-based sedentary behaviours: Time e-gaming or on a computer (duration): 1/1 studies reported mixed unfavourable and null associations [96] TV time (duration): 2/9 studies reported unfavourable associations [95, 103] 5/9 studies reported mixed unfavourable and null associations [90, 92, 96, 97, 99] 1/9 studies reported null associations [100] 1/9 studies reported mixed null and favourable associations [102] | Very lowh |
9429 (7) | Cross-sectionali | Serious risk of biasj | No serious inconsistency | No serious indirectness | No serious imprecision | None | Objectively measured sedentary time: Total sedentary time (accelerometer-derived): 1/1 studies reported null associations [104] Screen-based sedentary behaviours: TV time (duration): 2/6 studies reported unfavourable associations [101, 103] 2/6 studies reported null associations [100, 106] 1/6 studies reported mixed unfavourable and null associations [105] 1/6 studies reported mixed null and favourable associations [98] | Very lowk |