Table 2.

Comparison of VAS pain scores for two groups of patients before and after treatment (x̅±s)

Group	Male/female (cases)	Before treatment	After treatment
Control group	26/11	5.42±2.13	3.56±1.74a
Observation group	27/10	5.37±1.85	2.49±1.66a,b

Note: comparison of two groups of patients;

^a P < 0.05.

Comparison of the observation group with the control group after treatment;

^b P < 0.05.