Comparison of WHR between the two groups of patients at different time points. Note: X: Treatment time. Y: WHR. After treatment, the WHR of the observation group patients was (0.80±0.11) lower than before treatment (0.89±0.12) (t = 2.547, **P<0.01); The WHR of the control group patients was (0.85±0.13) lower than before treatment (0.87±0.14) (t = 4.584, **P<0.01); One month after treatment, the WHR of the observation group patients was (0.73±0.08) lower than before treatment (0.89±0.12) (t = 2.747, **P<0.01); The WHR of the control group patients was (0.79±0.23) lower than before treatment (0.87±0.14) (t = 5.640, **P<0.01); Immediately after treatment and 1 month after treatment, the WHR of the observation group patients was lower than that of the control group patients (t = 7.478, 8.639, **P<0.01).