上海市区6～11岁儿童营养不良状况Z分法分析

Analysis on Prevalence of Malnutrition in Children Aged 6～11yr From Shang Urban by SDS Method.

【目的】 分析上海市区小学生营养不良流行现状。 【方法】 ①收集上海市 12个区 3 1所小学 2 5 981名学生 (男 13 2 2 0 ,女 12 761) 1999年 5月测得的身高、体重及出生年月资料。②采用标准差单位法即Z分法作营养状况评估 ,凡身高和体重测量值的Z分值在 < 2和≥ 3之间为中度 ,凡 < 3为重度。 【结果】 ① 6～ 11岁男女童HAZ分均值和标准差分别为 0 .0 3± 1.16、0 .0 3± 1.15 ,WAZ分均值和标准差分别为 0 .2 6± 1.2 3和 0 .2 1± 1.2 4,WHZ分均值和标准差分别为 0 .2 2± 1.2 3和 0 .2 0± 1.2 8。②男女童中、重度生长迟缓分别共有 474例 (3 .8% )和 44 4例 (3 .5 % ) ,两者性别差异无明显性 (χ2 =0 .3 4,n’ =1,P =0 .5 6) ;男童中、重度体重低下率为 0 .2 % ,明显低于女童 0 .4% (χ2 =12 .73 ,n’=1,P =3 .6× 10 4) ;男女童中、重度消瘦分别有 61例 (0 .5 % )和 85例 (0 .7% ) ,有明显性别差异 (χ2 =4.48,n’ =1,P =0 .0 3 4)。③男女童中生长迟缓合并体重低下者分别有 15例和 3 3例 ;体重低下合并消瘦者分别有 2例和 13例 ;3种营养不良同时存在者分别有 2例和 6例。 【结论】 上海市区 6～ 11岁男女童按Z分法评估 ,显示急性慢性中、重度营养不良流行程度较低。

To analyze the prevalence of malnutrition in children aged 6～11yr from.①The data of height,weight and birthday of 25 981 children(13 220 boys,12 761 girls) were obtained from 31 primary schools of 12 districts in Shanghai urban.②The prevalence of growth retardation was measured by proportion of WFA,HFA and WFH below-2 and -3 SDS(Z scores).①The mean Z score and S of HFA for boys and girls were 0.03±1.16 and 0.03±1.15 respectively,that of WFA was 0.26±1.23 and 0.21±1.24 respectively,and that of WFH was 0.22±1.23 and 0.20±1.28 respectively.②The prevalence of stunting for boys and girls was 3.8%(474 cases) and 3.5%(444 cases) respectively(χ2=0.34,n'=1,P=0.56).The boys had a lower prevalence of underweight (0.2%,23 cases) than the girls(0.4%,53 cases)(χ2=12.73,n'=1,P=3.6×10 -4).There were 61 boys(0.5%) and 85 girls (0.7%) in wasting and a statistic difference in gender(χ2=4.48,n'=1,P=0.034).③There were 15 boys and 33 girls for both stunting and underweight,2 boys and 13 girls for both underweight and wasting,and 2 boys and 6 girls for combining stunting,underweight and wasting.[Conclusions]The prevalence of acute and chronic malnutrition was low in both boys and girls of Shanghai urban by using Z score method.