关于建立中国农村6～23月龄婴幼儿喂养指数的分析

Study of establishing feeding index for children aged 6-23 months in rural China

目的评价中国农村婴幼儿喂养指数与儿童营养状况的关系。方法利用2005年中国农村儿童营养监测调查数据,根据6～23月龄婴幼儿的母乳喂养和辅食添加情况,建立年龄别婴幼儿喂养指数,并分析婴幼儿喂养指数与年龄别身长Z评分(LAZ)和年龄别体重Z评分(WAZ)的关系。结果中国农村婴幼儿喂养指数为(8.61±2.56),6～、9～和12～23月龄儿童喂养指数均与LAZ显著相关(P<0.01),9～和12～23月龄儿童喂养指数与WAZ显著相关(P<0.05)。调整了相关影响因素后,婴幼儿喂养指数与儿童LAZ、WAZ依然显著相关(P<0.01),其中24小时辅食添加种类和辅食添加次数、1周内辅食添加与LAZ相关(P<0.01),母乳喂养、24小时辅食添加次数和一周内辅食添加与WAZ相关(P<0.05)。结论婴幼儿喂养指数可以反映我国农村儿童的喂养状况,并评价婴幼儿喂养行为对其营养状况的影响。

Objective Infant and child feeding index was used to examine its associations with nutritional status of children aged 6-23 month in rural China. Methods Data come from China rural children nutrition surveillance in 2005, age-specific infant and child feeding index (ICFI) is developed based on breastfeeding and complementary feeding practices, and the associations between ICFI and weight-for-age (WAZ), length-for-age Z scores (LAZ) were examined. Result sThe mean of ICFI was 8.61±2.56, ICFI was positively associated with LAZ in 6-, 9-and 12-23 month age group (P<0.01), ICFI was positively associated with WAZ in 9-and 12-23 month age group (P<0.05). Adjusted potentially confounding influences, ICFI remained positively association with both LAZ and WAZ (P<0.01). Among the components of ICFI, dietary diversity, meal frequency and complementary feeding in a week were positively associated with LAZ (P<0.01), breastfeeding, meal frequency and complementary feeding in a week were positively associated with WAZ (P<0.05). Conclusion ICFI could be used to assess effect of feeding practices on child growth in rural China.