Figure 3.

Comparison of cognitive function. There was no significant difference in cognitive function scores between the control group and the observation group before treatment, after 1, 2 and 3 months of treatment, and 2 months after completion of treatment (P>0.05). Compared with before treatment, both the observation group and the control group exhibited higher cognitive function scores after 1, 2 and 3 months of treatment and 2 months after completion of treatment (P<0.05). * indicates comparisons within the observation group, P<0.05, # indicates comparisons within the control group, P<0.05.