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  • Title: Prospective associations of screen time at age 2 with specific behavioral subscales at age 3: a cohort study.
    Author: Takahashi I, Obara T, Ishikuro M, Orui M, Noda A, Shinoda G, Nagami F, Hozawa A, Nishimura T, Tsuchiya KJ, Kuriyama S.
    Journal: J Public Health (Oxf); 2024 Sep 11; ():. PubMed ID: 39263935.
    Abstract:
    BACKGROUND: We aim to discover which, if any, of the subscales of internalizing and externalizing behavioral problems at age 3 are still associated with screen time (ST) at age 2 after adjusting for behavioral problems scores at age 2. METHODS: This study was conducted under the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study. Information was gathered prospectively, with 7207 mother-child pairs included in the analysis. Children's ST was categorized in hours a day at age 2 (<1, 1-<2, 2-<4, ≥4). We assessed children's behavioral problems using the Child Behavior Checklist for Ages 1½-5 (CBCL) at ages 2 and 3. 'Having behavioral problems' was defined by them being within a clinical range for internalizing behaviors (withdrawn, somatic complaints, anxious/depressed and emotionally reactive) and externalizing behaviors (attention problems and aggressive behaviors) at age 3. Continuous scores on each of the behavioral problem scales at age 2 were used as covariates. RESULTS: Greater ST for children at age 2 was associated with specific subscales for emotionally reactive and aggressive behaviors at age 3. CONCLUSIONS: This study found that ST is prospectively associated with some behavioral scales but not others.
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