Figure 4. Changes in the percentage of neutrophils and the percentage of pro-inflammatory neutrophils in the conventional treatment group compared with the control group. Control group (n = 15), conventional treatment group (n = 24). Data from both groups were normally distributed. Differences between control and conventional treatment groups were compared using an independent samples t-test. Paired samples t-tests were used to compare the proportion of cells in each group at each time point in the conventional treatment group. *P < 0.05 **P < 0.01 ***P < 0.001.