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Pediatrics. 2014 May;133(5):e1163-71. doi: 10.1542/peds.2013-3998. Epub 2014 Apr 14.

Television viewing, bedroom television, and sleep duration from infancy to mid-childhood.

Author information

1
Obesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts; Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts; emc611@mail.harvard.edu.
2
Obesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts; Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts;
3
Obesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts;
4
Brigham and Women's Hospital and Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts; and.
5
Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts; Division of General Pediatrics, Department of Pediatrics, Massachusetts General Hospital for Children, Boston, Massachusetts.

Abstract

BACKGROUND:

Television and insufficient sleep are associated with poor mental and physical health. This study assessed associations of TV viewing and bedroom TV with sleep duration from infancy to midchildhood.

METHOD:

We studied 1864 children in Project Viva. Parents reported children's average daily TV viewing and sleep (at 6 months and annually from 1-7 years) and the presence of a bedroom TV (annually 4-7 years). We used mixed effects models to assess associations of TV exposures with contemporaneous sleep, adjusting for child age, gender, race/ethnicity, maternal education, and income.

RESULTS:

Six hundred forty-three children (35%) were racial/ethnic minorities; 37% of households had incomes ≤$70 000. From 6 months to 7 years, mean (SD) sleep duration decreased from 12.2 (2.0) hours to 9.8 (0.9) hours per day; TV viewing increased from 0.9 (1.2) hours to 1.6 (1.0) hours per day. At 4 years, 17% had a bedroom TV, rising to 23% at 7 years. Each 1 hour per day increase in lifetime TV viewing was associated with 7 minutes per day (95% confidence interval [CI]: 4 to 10) shorter sleep. The association of bedroom TV varied by race/ethnicity; bedroom TV was associated with 31 minutes per day shorter sleep (95% CI: 16 to 45) among racial/ethnic minority children, but not among white, non-Hispanic children (8 fewer minutes per day [95% CI: -19 to 2]).

CONCLUSIONS:

More TV viewing, and, among racial/ethnic minority children, the presence of a bedroom TV, were associated with shorter sleep from infancy to midchildhood.

KEYWORDS:

childhood; sleep duration; sleep hygiene; television

PMID:
24733878
PMCID:
PMC4006444
DOI:
10.1542/peds.2013-3998
[Indexed for MEDLINE]
Free PMC Article

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