Physical circumference development in Chinese children aged 3-6 years
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摘要:
目的 了解中国3~6岁学龄前儿童4项体格围度的生长发育水平,为儿童营养改善和健康促进政策的制定提供参考依据。 方法 采用分层随机抽样方法,在2020—2023年采集中国华北、东北、华东、华中、华南、西南和西北七大自然地理区域24个省市120所幼儿园25 842名3~6岁学龄前儿童的体格围度数据;采用等级评价法对儿童头围、胸围、腰围和臀围的发育水平进行评价。性别和年龄差异分析分别使用Mann-Whitney U检验和Kruskal-Wallis检验,不同性别异常检出率的比较采用χ2检验。 结果 3~6岁儿童头围为51.74(50.08,53.33)cm,胸围为55.73(52.09,59.04)cm,腰围为53.04(48.92,56.40)cm,臀围为59.36(56.30,62.32)cm。3~6岁男、女童头围异常检出率较高(19.71%~42.02%),且各年龄各体格围度发育水平异常检出率男童均高于女童(χ2=5.63~83.35,P值均 < 0.05)。3~6岁男、女童臀围(4.89%~6.53%)和胸围(4.51%~6.38%)异常检出率较低,各年龄性别间异常率差异均无统计学意义(χ2值分别为0.00~1.61,0.00~3.71,P值均>0.05);3~6岁男、女童腰围异常检出率较高(13.70%~42.45%),4~6岁阶段中女童异常检出率均高于男童(χ2=10.49~58.18,P值均 < 0.05)。 结论 当前中国3~6岁儿童体格发育状况总体良好,但头围和腰围异常检出率较高。儿童保健工作应重点关注腹型肥胖的防治,并针对不同年龄段和性别制定差异化的健康干预策略。 Abstract:Objective To understand the growth and development levels of four physical measurements in children aged 3-6 years in China, so as to provide a reference for child nutrition improvement and health promotion. Methods A stratified random sampling method was used to collect physical measurement data from 120 kindergartens 25 842 children aged 3-6 years across 24 provinces and cities in seven natural geographical regions of North China, Northeast China, East China, Central China, South China, Southwest China and Northwest China from 2020 to 2023. The development levels of head circumference, chest circumference, waist circumference, and hip circumference were evaluated using a grading method. The analysis of gender and age differences was conducted using Mann-Whitney U test and Kruskal-Wallis test, and the comparison of abnormal detection rates for different genders was conducted using Chi-square test. Results The distribution range of children aged 3-6 was 51.74(50.08, 53.33) cm in terms of head circumference, 55.73(52.09, 59.04) cm in terms of chest circumference, 53.04(48.92, 56.40) cm in terms of waist circumference, and 59.36(56.30, 62.32) cm in terms of hip circumference. The detection rate of abnormal head circumference in boys and girls aged 3-6 years old was relatively high (19.71%-42.02%), and the detection rate of abnormal physical circumference development levels in boys was higher than that in girls of all ages (χ2=5.63-83.35, P < 0.05). The detection rate of abnormal hip circumference (4.89%-6.53%) and chest circumference (4.51%-6.38%) in boys and girls aged 3-6 was relatively low, and there was no statistically significant difference in the abnormal rate between different ages and genders (χ2=0.00-1.61, 0.00-3.71, P>0.05). The detection rate of abnormal waist circumference in boys and girls aged 3-6 was relatively high (13.70%-42.45%), and the detection rate of abnormal waist circumference in girls was higher than that in boys aged 4-6 groups (χ2=10.49-58.18, P < 0.05). Conclusions The overall physical development of children aged 3-6 years in China is improving, but the abnormal detection rates for head circumference and waist circumference are relatively high. Child healthcare should focus on preventing and treating abdominal obesity, with differentiated health intervention strategies based on different age groups and genders. 1) 利益冲突声明 所有作者声明无利益冲突。 -
表 1 不同性别年龄学龄前儿童体格测量指标比较[M(P25, P75), cm]
Table 1. Comparison of physical measurement indicator among preschool children of different genders and ages[M(P25, P75), cm]
性别与年龄 选项 人数 统计值 头围 胸围 腰围 臀围 性别 男 13 576 52.79(51.28, 54.19) 56.20(52.60, 59.50) 53.38(49.70, 56.60) 59.67(56.70, 62.40) 女 12 266 50.89(49.10, 51.94) 55.22(51.58, 58.59) 52.65(48.10, 56.20) 59.01(55.70, 62.30) U值 39 142 193.50 74 569 422.00 74 679 921.00 76 992 923.00 P值 < 0.01 < 0.01 < 0.01 < 0.01 年龄/岁 3 1 419 50.18(48.65, 51.53) 51.95(48.18, 55.12) 50.31(46.73, 53.47) 57.23(54.16, 60.29) 3.5 2 692 50.62(49.13, 51.98) 53.06(49.53, 56.15) 51.61(47.40, 55.00) 57.58(54.60, 60.40) 4 3 495 51.07(49.57, 52.46) 53.95(50.61, 56.81) 51.90(47.90, 55.10) 58.08(55.21, 60.80) 4.5 3 705 51.40(49.87, 52.93) 54.84(51.54, 57.63) 52.34(48.50, 55.68) 58.69(55.80, 61.45) 5 3 827 51.85(50.34, 53.36) 55.87(52.52, 58.92) 53.04(49.10, 56.30) 59.40(56.60, 62.40) 5.5 4 201 52.20(50.65, 53.79 56.85(53.57, 59.78) 53.79(49.90, 57.00) 60.16(57.30, 62.90) 6 3 833 52.61(51.02, 54.17) 58.10(54.75, 61.16) 54.77(50.70, 58.20) 60.88(57.90, 63.90) 6.5 2 670 52.91(51.18, 54.58) 58.68(55.40, 61.60) 54.70(50.82, 57.90) 61.37(58.40, 64.20) H值 3 852.78 2 786.83 1 445.00 2 081.39 P值 < 0.01 < 0.01 < 0.01 < 0.01 合计 25 842 51.74(50.08, 53.33) 55.73(52.09, 59.04) 53.04(48.92, 56.40) 59.36(56.30, 62.32) 表 2 各年龄组不同性别儿童体格测试指标异常检出率比较
Table 2. Comparison of abnormal detection rates of physical measurement indicator among children of different genders in different age groups
年龄/岁 性别 人数 统计值 头围 胸围 腰围 臀围 3 女 695 137(19.71) 38(5.47) 295(42.45) 37(5.32) 男 724 208(28.73) 43(5.94) 291(40.19) 37(5.11) χ2值 15.67 0.15 0.65 0.03 P值 < 0.01 0.70 0.42 0.86 3.5 女 1 265 286(22.61) 57(4.51) 546(43.16) 72(5.69) 男 1 427 379(26.56) 76(5.33) 561(39.31) 81(5.68) χ2值 5.63 0.96 3.95 0.00 P值 0.02 0.33 0.05 0.99 4 女 1 670 391(23.41) 101(6.05) 612(36.65) 96(5.75) 男 1 825 576(31.56) 104(5.70) 573(31.40) 108(5.92) χ2值 28.93 0.19 10.49 0.05 P值 < 0.01 0.66 < 0.01 0.83 4.5 女 1 770 391(22.09) 85(4.80) 606(34.24) 101(5.71) 男 1 935 652(33.70) 121(6.25) 527(27.24) 95(4.91) χ2值 61.55 3.71 21.02 1.17 P值 < 0.01 0.05 < 0.01 0.28 5 女 1 821 394(21.64) 95(5.22) 575(31.58) 107(5.88) 男 2 006 702(35.00) 128(6.38) 518(25.82) 113(5.63) χ2值 83.35 2.36 15.21 0.10 P值 < 0.01 0.12 < 0.01 0.75 5.5 女 2 012 675(33.55) 117(5.82) 605(30.07) 116(5.77) 男 2 189 880(40.20) 128(5.85) 484(22.11) 107(4.89) χ2值 19.90 0.00 34.17 1.61 P值 < 0.01 0.96 < 0.01 0.21 6 女 1 808 609(33.68) 99(5.48) 558(30.86) 103(5.70) 男 2 025 851(42.02) 116(5.73) 407(20.10) 115(5.68) χ2值 28.18 0.12 58.18 0.00 P值 < 0.01 0.73 < 0.01 0.98 6.5 女 1 225 64(5.22) 297(24.24) 80(6.53) 男 1 445 82(5.67) 198(13.70) 82(5.67) χ2值 0.26 48.10 0.85 P值 0.61 < 0.01 0.36 注: ()内数字为检出率/%;由于参照的头围标准仅包含3~6岁阶段,因此未对6.5岁儿童的头围进行评价。 -
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