| Project/Area Number |
23390181
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Hygiene and public health
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| Research Institution | National Institute of Public Health |
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Principal Investigator |
DOI Yuriko 国立保健医療科学院, その他部局等, 統括研究官 (70280758)
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|---|
| Co-Investigator(Kenkyū-buntansha) |
ISHIHARA Kaneyoshi ノートルダム清心女子大学, 人間生活学部, 教授 (80159756)
UCHIYAMA Makoto 日本大学, 医学部, 教授 (20221111)
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| Project Period (FY) |
2011-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 母子保健 / 睡眠 / 朝型-夜型タイプ / 概日リズム / 幼児 / CCTQ / 疫学 / 行動問題 / 朝型-夜型 |
|---|
| Outline of Final Research Achievements |
We developed the Japanese version of Children’s ChronoType Questionnaire (CCTQ-J) and confirmed that it was a reliable and valid measure for assessing morningness-eveningness in children. We conducted a nationwide survey of sleep and health for preschool children aged 4-6 years attending kindergarten and childcare centers. Morning-, neither-, and evening-types accounted for 32.4%, 57.4%, and 10.3% of the participants, respectively. Eveningness was significantly associated with the delayed timing, shorter duration, and irregularity of sleep-wake parameters, and behavioral problems such as hyperactivity/inattention and conduct problems.
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