目的 了解广西青少年儿童营养不良现状及变化趋势,为广西制定相关营养改善策略提供参考依据。方法 利用1989-2011年“中国健康与营养调查”9次调查数据,选取2~18岁儿童青少年共2 931例。采用美国CDC(2000)儿童身高体重参考标准,利用Z评分方法评价儿童营养不良状况。结果 广西青少年儿童生长发育迟缓率、低体重率、消瘦率呈逐渐下降趋势,分别由1989年38.1%、31.0%、16.1%下降到2011年的8.0%、21.5%、9.0%;23年间,男童、农村儿童、2~6岁组儿童消瘦率下降趋势差异无统计学意义(χ²=1.26、0.02、3.59,P＞0.05)。结论 广西青少年儿童营养不良有较大改善,但低体重率还在较高水平,农村儿童及学龄前儿童营养不良有待进一步改善。

Objectives To understand malnutrition status and changing trend of youth and child,and to provide reference of develop related nutrition improvement strategy in Guangxi. Methods Survey data of 2 913 children and adolescents aged 2~18 years were collected of the "China Health and Nutrition Survey" from 1989 to 2011.Reference standard of Z score method of CDC (2002) was used to evaluate the children's malnutrition status. Results The rates of children and adolescence's stunted growth,low body weight and wasting were gradual decrease,from 38.1%,31.0%,16.1% in 1989,to 8.0%,21.5%,9.0% in 2011 respectively.In 23 years,the downward trend of wasting rate of boys,rural children and 2~6 years old group was not statistically significant (χ²=1.26,0.02,3.59,P all>0.05). Conclusion The malnutrition have been greatly improved among children and adolescents in Guangxi,but the low body weight rate is still relatively high level,the malnutrition should further improved among rural children and preschoolers.