Analysis on nutritional status of Zang nationality children in kindergartens in Zhag'yab county,Xizang autonomous region in 2022
Objective To understand the physical development level of Zang nationality preschool children in Zhag'yab county,so as to provide the reference for local health decision-making.Methods A cross-sectional study with a sample of 1 263 3-7 years old Zang nationality children from kindergartens in 13 districts of Zhag'yab county,Xizang autonomous region.Their height and weight were measured and the hemoglobin was detected by a unified method.Standard statistical method was adopted(Z-score method).Z-scores of length/height-for-age(HAZ),Z-scores of weight-for-age(WAZ),Z-scores of body mass index(BMI)-for-age(BAZ)and Z-scores of weight-for-height(WHZ)were calculated by WHO An-thro v3.2.2 and WHO Anthro Plus.The nutritional status of children was evaluated according to WHO diagnostic criteria for malnutrition and anemia.Results In Zhag'yab county of Xizang autonomous region,the median HAZ of kindergar-ten children in all age groups was negative,the median WAZ of children in 3,5 and 6 years old was negative,and the medi-an BAZ of children in 5 and 6 years old was negative.The median Z-values of all nutrition evaluation indexes of rural chil-dren were negative.Except HAZ,the median Z-values of the other nutritional evaluation indexes of urban children were all positive.Except WHZ,the median Z-value of other nutritional evaluation indexes of all kindergarten children was nega-tive.The overall detection rate of malnutrition was 23.2％,the detection rates of stunting,underweight,wasting,over-weight,obesity and anemia were 10.7％,10.2％,9.3％,3.6％,1.5％and 24.5％respectively.The wasting rate and a-nemia rate of boys were lower than those of girls,and the other detection rates were higher than those of girls,with no statisti-cal significance(x2=0.019,1.162,0.037,0.422,3.787,3.789,2.182;P=0.848,0.516,0.891,0.052,0.052,0.140,0.281 respectively).The detection rates of malnutrition,stunting,underweight,wasting and anemia in rural children were higher than those in urban children,and the rates of overweight and obesity were lower than those in urban children,ex-cept for the rates of obesity and anemia,the differences were statistically significant(x2=8.419,21.597,12.623,5.994,2.028,3.910,1.280;P=0.004,＜0.001,＜0.001,0.014,0.154,0.048,0.258 respectively).The rates of overweight,o-besity and anemia were significantly different among different age groups(x2=12.664,16.776,16.813;P=0.011,0.001,0.002 respectively).Conclusion The malnutrition rate and anemia rate of kindergarten children in Zhag'yab county were high.The nutrition problem of rural children is more prominent,and the overweight and obesity problem of urban children is emerging.
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