[Retracted] Effect of Early Nutritional Assessment and Nutritional Support on Immune Function and Clinical Prognosis of Critically Ill Children

Figure 5

Comparison of C4 levels (). The horizontal axis from left to right represents before intervention and after intervention, and the vertical axis represents the C4 level (μmol/L). In the experimental group, the C4 levels before and after intervention were (1.02 ± 0.34) μmol/L and (0.13 ± 0.11) μmol/L, respectively. In the control group, the C4 levels before and after intervention were (1.04 ± 0.31) μmol/L and (0.55 ± 0.09) μmol/L, respectively. The C4 levels of the experimental group before and after intervention were obviously different (t = 16.707, ). The C4 levels of the control group before and after intervention were obviously different (t = 10.183, ). The C4 levels of the two groups after intervention were obviously different (t = 19.823, ).