Time for bed: associations with cognitive performance in 7-year-old children: a longitudinal population-based study
Time for bed: associations with cognitive performance in 7-year-old children: a longitudinal population-based study
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DOI：
10.1136/jech-2012-202024
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发表时间：
2013-11-01
影响因子：
6.3
通讯作者：
Sacker, Amanda
中科院分区：
文献类型：
--
作者：
Kelly, Yvonne;Kelly, John;Sacker, Amanda
背景 人们对幼儿上床睡觉的时间与其认知发展之间的联系知之甚少。在本文中，我们试图研究幼儿期的就寝时间是否与 7 岁儿童的认知测试分数相关。方法我们检查了来自英国千禧队列研究的 11178 名 7 岁儿童的就寝时间和阅读、数学和空间能力认知测试（z 分数）数据。结果 7 岁时，不规律的就寝时间与女孩较低的认知测试分数有关：阅读（：-0.22）、数学（：-0.26）和空间（：-0.15），但不适合男孩。对于女孩和男孩而言，3 岁时不规律的就寝时间与较低的阅读（：-0.10，-0.20）、数学（：-0.16，-0.11）和空间（：-0.13，-0.16）分数独立相关。累积关系是显而易见的。在 3、5 和 7 岁时从未规律就寝的女孩的阅读（：-0.36）、数学（：-0.51）和空间（：-0.40）分数显着较低，而对于男孩来说，在任何两个年龄（3、5或7岁）不规律就寝的男孩的情况如下：阅读（：-0.28）、数学（：-0.22）和空间（：-0.26）分数。在所有三个年龄段（3、5 和 7 岁）不规律就寝时间的男孩中，与较低的阅读、数学和空间分数没有显着相关。 结论 幼儿期就寝时间的一致性与认知表现有关。鉴于儿童早期发育的重要性，可能会对一生的健康产生连锁影响。
Background Little is known about the links between the time that young children go to bed and their cognitive development. In this paper we seek to examine whether bedtimes in early childhood are related to cognitive test scores in 7-year-olds.Methods We examined data on bedtimes and cognitive test (z-scores) for reading, maths and spatial abilities for 11178 7-year-old children from the UK Millennium Cohort Study.Results At age 7, not having a regular bedtime was related to lower cognitive test scores in girls: reading (: -0.22), maths (: -0.26) and spatial (: -0.15), but not for boys. Non-regular bedtimes at age 3 were independently associated, in girls and boys, with lower reading (: -0.10, -0.20), maths (: -0.16, -0.11) and spatial (: -0.13, -0.16) scores. Cumulative relationships were apparent. Girls who never had regular bedtimes at ages 3, 5 and 7 had significantly lower reading (: -0.36), maths (: -0.51) and spatial (: -0.40) scores, while for boys this was the case for those having non-regular bedtimes at any two ages (3, 5 or 7years): reading (: -0.28), maths (: -0.22) and spatial (: -0.26) scores. In boys having non-regular bedtimes at all three ages (3, 5 and 7years) were non-significantly related to lower reading, maths and spatial scores.Conclusions The consistent nature of bedtimes during early childhood is related to cognitive performance. Given the importance of early child development, there may be knock on effects for health throughout life.