The change of Z-score of infants and young children at different monitoring time point after given complementary food supplements.

The results were expressed as means ± SD. Means in the same age group within same column with different superscripts a–c were significantly different as a result of intervention at the P<0.05 level.

研究结果以均值±标准差（SD）表示。同一表格列内的同一年龄组别中，标注有不同上标a~c的各组均值间差异具有统计学意义，该差异由干预因素所致，且在P<0.05的显著性水平下显著。