Sleep duration and associated factors among 3-6-year-old children in Zhejiang Province
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摘要:
目的 了解浙江省3~6岁儿童睡眠时间现状及影响因素, 为制定儿童睡眠干预措施提供依据。 方法 2019年3—4月采用分层整群抽样方法, 选取浙江省24所幼儿园的7 034名3~6岁儿童为调查对象, 通过对家长发放问卷, 调查儿童的睡眠时间, 采用Logistic回归模型分析睡眠不足的影响因素。 结果 浙江省3~6岁儿童睡眠不足率为56.1%, 男童为57.1%, 女童为55.1%; 睡眠不足率随年龄增加而增加, 3, 3.5, 4, 4.5, 5, 5.5, 6岁分别为46.7%, 49.8%, 50.2%, 55.2%, 64.0%, 65.8%, 68.1%, 差异有统计学意义(χ2=45.17, P<0.01); 每日户外活动时间<1 h者睡眠不足报告率为59.9%、1~2 h为54.7%、>2 h为45.6%, 差异有统计学意义(χ2=67.10, P<0.01)。多因素Logistic回归模型显示, 年龄4, 5, 5.5, 6岁, 看护人为其他, 每日户外活动时间<1 h, 1~2 h, 母亲文化程度为初中及以下、高中/中专与儿童睡眠不足呈正相关。 结论 年龄增加、户外活动不足、屏幕时间过多、非父母看护、母亲文化程度低等是导致幼儿睡眠不足的主要因素。建议增加幼儿户外活动, 尤其关注非父母看护下幼儿的户外活动时间。 Abstract:Objective To explore sleep duration and associated factors among children aged 3-6 years old in Zhejiang Province. Methods A total of 7 034 children aged 3-6 years from 24 kindergartens in Zhejiang province were selected through clustered sampling method. Through parental questionnaire, child sleep duration and associated factors were colleted. Possible influencing factors of sleep insufficiency were analyzed by logistic regression model. Results The rate of insufficient sleep was 56.1%, with 57.1% for boys and 55.1% for girls in Zhejiang Province. The rate of insufficient sleep increased with the increase of age, which was 46.7%, 49.8%, 50.2%, 55.2%, 64.0%, 65.8% and 68.1% for 3.0, 3.5, 4.0, 4.5, 5.0, 5.5 and 6.0 years old group (χ2=45.71, P<0.01), respectively. The rate of insufficient sleep was 59.9%, 54.7% and 45.6% for children with <1 h/d, 1-2 h/d and ≥2 h/d outdoor physical activity (χ2=67.10, P<0.01). Multivariate Logistic regression model showed that children older than 4.5 years old, whose caregiver was other than parents, outdoor activity time< 1 h/d and 1-2 h/d, maternal education below junior middle school and senior high school were positiviely associated with sleep insufficiency. Conclusion Sleep insufficiency among preschool children is associated with multiple factors, increase of age, insufficient outdoor activity and overdose screen time in particular. The finding calls for outdoor physical activity promotion among preschool children, especially for those whose caregivers are those other than parents. -
Key words:
- Sleep /
- Time /
- Regression analysis /
- Child
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表 1 不同年龄组儿童睡眠时间不足报告率比较
Table 1. Comparison of the reported rate of insufficient sleep duration among children of different age groups
年龄/岁 男生 女生 χ2值 P值 人数 报告人数 人数 报告人数 3 460 220(47.8) 460 210(45.6) 0.44 0.51 3.5 573 285(49.7) 624 311(49.8) 0.01 0.97 4 550 274(49.8) 549 273(49.7) 0.01 0.97 4.5 617 338(54.8) 565 314(55.6) 0.07 0.78 5 601 396(65.9) 567 352(62.1) 1.84 0.17 5.5 549 369(67.2) 508 326(64.2) 1.08 0.30 6 243 170(69.9) 168 110(65.5) 0.91 0.34 χ2值 27.03 18.85 P值 <0.05 <0.05 注: ( )内数字为报告率/%。 表 2 浙江省3~6岁儿童睡眠不足的单因素分析
Table 2. Univariate analysis of insufficient sleep in children aged 3-6 years in Zhejiang Province
组别 人数 睡眠不足人数 χ2值 P值 性别 男 3 593 2 052(57.1) 2.02 0.16 女 3 441 1 896(55.1) 年龄/岁 3 920 430(46.7) 45.71 <0.01 3.5 1 197 596(49.8) 4 1 099 547(50.2) 4.5 1 182 652(55.2) 5 1 168 748(64.0) 5.5 1 057 695(65.8) 6 411 280(68.1) 看护人 父母 4 954 2 735(55.2) 5.43 0.02 其他 2 064 1 202(58.2) 每日户外活动时间/h <1 3 607 2 161(59.9) 67.10 <0.01 1~2 2 409 1 317(54.7) >2 988 451(45.6) 每日屏幕时间/h <1 3 800 2 077(54.7) 7.80 <0.01 1~2 2 335 1 343(57.5) >2 889 523(58.8) 父亲文化程度 初中及以下 1 657 961(58.0) 16.82 <0.01 高中/中专 2 240 1 299(58.0) 大专及以上 2 946 1 562(53.0) 母亲文化程度 初中及以下 1 976 1 190(60.2) 30.68 <0.01 高中/中专 2 125 1 216(56.5) 大专及以上 2 783 1 453(52.2) 父母有锻炼习惯 是 4 009 2 209(55.1) 2.63 0.11 否 2 879 1 643(57.1) 注: ( )内数字为报告率/%。 表 3 浙江省3~6岁儿童睡眠不足的多因素Logistic回归分析(n=7 034)
Table 3. Multivariate Logistic regerssion analysis of insufficient sleep among children aged 3-6 years in Zhejiang Province(n=7 034)
自变量 β值 Wald χ2值 P值 OR值(OR值95%CI) 年龄/岁 3 1.00 3.5 0.11 1.36 0.24 1.11(0.93~1.33) 4 0.15 2.44 0.12 1.16(0.96~1.39) 4.5 0.25 7.48 0.01 1.29(1.07~1.54) 5 0.68 52.80 0.00 1.97(1.64~2.37) 5.5 0.71 54.78 0.00 2.04(1.69~2.46) 6 0.85 42.62 0.00 2.35(1.82~3.03) 看护人 父母 1.00 其他 0.19 10.93 0.00 1.21(1.08~1.35) 每日户外活动时间/h <1 0.55 51.59 0.00 1.73(1.49~2.01) 1~2 0.39 23.77 0.00 1.47(1.26~1.72) >2 1.00 每日屏幕时间/h <1 1.00 1~2 0.05 0.70 0.40 1.05(0.94~1.17) >2 0.07 0.66 0.42 1.07(0.91~1.25) 父亲文化程度 初中及以下 0.02 0.03 0.86 1.02(0.86~1.20) 高中/中专 0.11 2.37 0.12 1.11(0.97~1.27) 大专及以上 1.00 母亲文化程度 初中及以下 0.30 12.90 0.00 1.35(1.15~1.59) 高中/中专 0.15 4.51 0.03 1.16(1.01~1.32) 大专及以上 1.00 -
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