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Relationship between actigraphically estimated sleep patterns in Japanese school children with special reference to morningess — eveningness preference

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Abstract

Actigraphy and morningness-eveningness (M-E) questionnaire assessed the sleep-wake patterns during a 1-week period in 91 junior high school children. Of the group 20% were evening type, 66% intermediate, and 14% morning type. The general morningness-eveningness score was 16.2 ± 3.6 (mean ± SD) for boys and 16.8 ± 3.0 for girls. The gender difference was insignificant. A significant difference was found between M and E type for sleep parameters during schooldays. Morning type children showed better sleep indicators vs their evening type counterparts, especially during schooldays, and less strongly during weekends.

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Authors and Affiliations

  1. Department of Welfare Promotion and Epidemiology, Toyama Medical and Pharmaceutical University, Sugitani 2630, Toyama, 930-0194, Japan

    Alexandru Gaina, Michikazu Sekine, Shimako Hamanishi, Xiao Chen & Sadanobu Kagamimori

Authors
  1. Alexandru Gaina
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  2. Michikazu Sekine
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  3. Shimako Hamanishi
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  4. Xiao Chen
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  5. Sadanobu Kagamimori
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Correspondence to Alexandru Gaina.

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Gaina, A., Sekine, M., Hamanishi, S. et al. Relationship between actigraphically estimated sleep patterns in Japanese school children with special reference to morningess — eveningness preference. Sleep Biol. Rhythms 3, 42–44 (2005). https://doi.org/10.1111/j.1479-8425.2005.00152.x

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  • DOI: https://doi.org/10.1111/j.1479-8425.2005.00152.x

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