Anemia in preschool children in China and its association with neuropsychological development
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摘要:
目的 分析中国学龄前儿童贫血现况及其与不同能区及总体神经心理发育状况的相关关系。 方法 数据来源于“中国0~18岁儿童营养与健康系统调查与应用”项目,以14省28个调查点的3 261名2~6岁儿童及其家长为研究对象。儿童相关人口学特征由经过统一培训的调查员进行面对面调查。采用血红蛋白检测方法(Hemocue法)测定儿童全血血红蛋白,儿童的神经心理发育水平由经过培训的儿童保健人员采用《0~6岁儿童发育行为评估量表》(WS/T 580—2017)进行测查。 结果 儿童血红蛋白平均水平为(125.23±11.49)g/L,贫血率为10.30%。调整性别、年龄、民族、地区、喂养方式、母孕期情况等混杂因素之后,2~6岁贫血儿童在大运动(β=-2.15,95%CI=-3.89~-0.41)、精细动作(β=-2.46,95%CI=-4.12~-0.79)、适应能力(β=-2.59,95%CI=-4.42~-0.76)、语言(β=-3.65,95%CI=-5.53~-1.78)和社会行为(β=-3.11,95%CI=-4.94~-1.28)5个能区以及全量表(β=-2.79,95%CI=-4.10~-1.49)发育商水平均低于非贫血儿童(P值均 < 0.05)。 结论 2~6岁儿童贫血与其总体发育商以及大运动、精细动作、适应能力、语言和社会行为五大能区发育商水平均呈负相关,建议积极开展学龄前儿童贫血监测、干预工作,进一步提高儿童的神经心理发育水平。 Abstract:Objective To explore the relationship between anemia and neuropsychological development in various domains among preschool children in China. Methods Data came from the National Nutrition and Health Systematic Survey for children in China, and 3 261 preschool children aged 2-6 years and their parents from 28 sites across 14 provinces were recruited in this study. Parental and child characteristics were obtained by interview-administrated questionnaires. Blood hemoglobin(Hb) concentration was determined by Hemocue method. Neuropsychological development quotients were assessed using the Development Scale for Children Aged 0-6 Years(WS/T 580-2017). Results The average Hb level was (125.23±11.49)g/L and the overall anemia prevalence was 10.30% among preschool children. After adjusting the confounding factors(sex, age, ethnicity, region, feeding mode, maternal status during pregnancy, etc), developmental quotients of gross motor(β=-2.15, 95%CI=-3.89--0.41), fine motor(β=-2.46, 95%CI=-4.12--0.79), adaptive behavior(β=-2.59, 95%CI=-4.42--0.76), language(β=-3.65, 95%CI=-5.53--1.78), personal-social behavior(β=-3.11, 95%CI=-4.94--1.28) and full-scale(β=-2.79, 95%CI=-4.10--1.49) among children with anemia were significantly lower than non-anemic infants(P < 0.05). Conclusion Anemia was negatively associated with developmental quotient, as well as five domains of gross motor, fine motor, adaptive behavior, language, and personal-social behavior in preschool children aged 2-6 years. It is suggested to carry out the work of anemia monitoring and intervention in preschool children to further improve their neuropsychological development. -
Key words:
- Anemia /
- Growth and development /
- Mental health /
- Regression analysis /
- Child, preschool
1) 利益冲突声明 所有作者声明无利益冲突。 -
表 1 不同年龄组男女童血红蛋白水平比较/(x±s,g·L-1)
Table 1. Comparison of hemoglobin level in boys and girls by age group/(x±s, g·L-1)
年龄/岁 男童 女童 总体 人数 血红蛋白 人数 血红蛋白 人数 血红蛋白 2 381 122.09±11.01 408 121.37±10.46 789 121.72±10.73 3 379 124.63±11.88 411 123.57±10.87 790 124.08±11.37 4 433 126.42±11.76 441 126.94±10.95 874 126.68±11.36 5~6 400 128.14±11.63 408 128.28±11.27 808 128.21±11.44 合计 1 593 125.39±11.78 1 668 125.07±11.22 3 261 125.23±11.49 F值 19.54 34.42 52.34 P值 < 0.01 < 0.01 < 0.01 表 2 不同年龄组男女童贫血检出率比较
Table 2. Comparison of anemia prevalence in boys and girls by age group
年龄/岁 男童 女童 总体 人数 贫血 人数 贫血 人数 贫血 2 381 51(13.39) 408 52(12.75) 789 103(13.05) 3 379 36(9.50) 411 38(9.25) 790 74(9.37) 4 433 37(8.55) 441 30(6.80) 874 67(7.67) 5~6 400 47(11.75) 408 45(11.03) 808 92(11.39) 合计 1 593 171(10.73) 1 668 165(9.89) 3 261 336(10.30) χ2值 6.00 9.23 14.81 P值 0.11 0.03 < 0.01 注: ()内数字为贫血率/%。 表 3 不同组别儿童各能区平均发育商得分比较(x±s)
Table 3. Comparison of developmental quotient of scores in children among different groups(x±s)
组别 选项 人数 统计值 大运动 精细动作 适应能力 语言 社会行为 总分 年龄/岁 2 789 101.60±14.22 91.64±16.51 97.76±14.30 96.09±17.98 97.40±14.82 96.90±11.91 3 790 112.44±16.78 98.04±16.72 101.54±17.92 103.41±18.66 106.06±17.81 104.28±13.33 4 874 113.52±15.34 101.56±13.47 102.90±16.56 104.77±16.12 106.50±16.27 105.85±12.01 5~6 808 108.43±11.53 98.89±11.14 100.98±13.88 101.61±12.43 102.62±13.12 102.52±9.31 F值 110.36 67.68 15.57 43.48 58.55 89.89 P值 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 是否贫血 是 336 105.68±14.04 93.74±14.34 96.64±15.08 96.02±18.38 98.70±15.67 98.13±12.19 否 2 925 109.51±15.41 98.09±15.05 101.33±15.89 102.20±16.46 103.75±15.97 102.98±12.09 t值 -4.35 -5.04 -5.15 -6.44 -5.49 -6.95 P值 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 表 4 儿童贫血与不同能区发育商的多元线性回归分析[β值(β值95%CI),n=3 261]
Table 4. Linear regression analysis of anemia and developmental quotient in children[β(β 95%CI), n=3 261]
变量 全量表发育商 大运动 精细动作 适应能力 语言 社会行为 是否贫血 是 -2.79(-4.10~-1.49)** -2.15(-3.89~-0.41)* -2.46(-4.12~-0.79)** -2.59(-4.42~-0.76)** -3.65(-5.53~-1.78)** -3.11(-4.94~-1.28)** 性别 女 2.50(1.73~3.26)** 2.20(1.18~3.22)** 3.12(2.14~4.09)** 1.91(0.84~2.98)** 2.61(1.51~3.71)** 2.63(1.56~3.71)** 年龄 1.72(1.50~1.94)** 2.48(2.18~2.77)** 1.66(1.37~1.94)** 0.87(0.56~1.18)** 1.68(1.36~1.99)** 2.63(1.56~3.71)** 民族 少数民族 -3.25(-4.65~-1.86)** 1.20(-0.66~3.06) -3.70(-5.48~-1.92)** -5.65(-7.61~-3.70)** -5.21(-7.21~-3.21)** -2.89(-4.84~-0.94)** 是否早产儿 是 -0.86(-2.15~0.43) -0.45(-2.17~1.26) -2.02(-3.66~-0.38)* -0.53(-2.33~1.27) -0.16(-2.00~1.69) -1.15(-2.95~0.65) 是否高危新生儿 是 -2.07(-3.75~-0.39)* -2.25(-4.49~-0.02)* -1.40(-3.54~0.74) -2.90(-5.26~-0.55)* -2.95(-5.36~-0.54)* -0.85(-3.20~1.50) 喂养方式 人工喂养 -2.12(-3.15~-1.09)** -2.93(-4.30~-1.55)** -2.26(-3.57~-0.95)** -1.92(-3.37~-0.48)** -1.56(-3.04~-0.09)* -1.95(-3.39~-0.51)** 混合喂养 0.65(-0.35~1.65) 0.48(-0.85~1.81) -0.23(-1.51~1.04) 0.99(-0.41~2.38) 1.38(-0.05~2.81) 0.63(-0.77~2.02) 母孕期增重 0.04(-0.00~0.08) 0.06(0.00~0.12)* 0.04(-0.01~0.10) -0.01(-0.07~0.05) 0.04(-0.02~0.10) 0.06(0.00~0.12)* 地区 东北 6.00(4.61~7.38)** 3.25(1.40~5.09)** 5.18(3.42~6.95)** 4.32(2.39~6.26)** 8.54(6.56~10.53)** 8.71(6.77~10.64)** 华东 0.72(-0.69~2.12) 0.72(-1.15~2.59) -0.36(-2.15~1.43) -1.49(-3.45~0.48) 2.15(0.14~4.16)* 2.59(0.62~4.55)** 华中 -1.71(-3.19~-0.23)* -4.44(-6.41~-2.47)** -4.49(-6.38~-2.61)** -0.02(-2.09~2.06) 0.47(-1.65~2.59) -0.08(-2.15~1.99) 华南 5.80(3.91~7.68)** 0.15(-2.36~2.66) 10.30(7.89~12.70)** 6.12(3.48~8.76)** 6.54(3.83~9.24)** 5.89(3.26~8.53)** 西南 1.59(0.15~3.03)* 1.00(-0.92~2.92) 3.16(1.33~5.00)** -0.78(-2.80~1.23) 0.22(-1.85~2.28) 4.39(2.37~6.40)** 西北 -5.28(-6.64~-3.92)** -2.68(-4.49~-0.88)** -4.84(-6.57~-3.11)** -9.26(-11.17~-7.36)** -6.14(-8.09~-4.20)** -3.46(-5.36~-1.56)** 注: *P < 0.05,**P < 0.01。 -
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