重庆市项目区县6～24个月龄婴幼儿营养干预效果研究

Study on nutritional intervention effect of 6-24-month infants in project districts and counties of Chongqing

目的 评价贫困地区儿童营养改善项目对重庆市项目区县6～24个月龄婴幼儿营养改善的效果。方法 在重庆市首批实施贫困地区儿童营养改善项目的 3个项目区县,为全县所有6～24个月龄婴幼儿每天补充一包国家统一标准的营养包。在项目实施前和项目实施1年后分别抽取代表性的1 306人6～24个月龄婴幼儿进行调查,对比项目实施前后儿童身长、体重和血红蛋白的差异。结果 项目实施1年后婴幼儿平均体重增加0.33 kg,WAZ增加0.18,平均身长增加0.67 cm,差异有统计学意义（P〈0.05）;血红蛋白平均浓度由项目实施前的108.2 g/L提高到110.4 g/L,贫血检出率由51.7%下降至38.7%,差异有统计学意义。结论 贫困地区儿童营养改善项目实施显著改善了重庆市项目区县6～24个月龄婴幼儿营养状况。

Objective To evaluate the improvement effect of nutrition improvement program for children in poor areas on nutrition of 6- 24-month infants in project districts and counties of Chongqing. Methods All the 6-24-month infants from three project districts and counties of Chongqing were fed by nutrition package daily, and 1 306 infants aged 6-24 months were selected for investigation before and af- ter one year of implementation of the project. The differences of length, weight, and hemoglobin before and after implementation of the pro- ject were compared. Results The mean weight of infants after one year of implementation of the project increased by 0. 33 kg, WAZ increased by 0. 18, mean height of infants increased by 0. 67 era, there were statistically significant differences （P〈O. 05） ; the mean concentration of hemoglobin increased from 108. 2 g/L before implementation of the project to 110. 4g./L after one year of implementation of the pro- ject, the detection rate of anemia decreased from 51.7% to 38.7%, there were statistically significant differences. Conclusion The imple- mentation of children nutrition improvement project in rural areas significantly improve nutritional status of 6-24-month infants in project dis- tricts and counties of Chongqing.