Figure 6. The proportion of VAS scores 1 to 2 between the groups on PODs 1 and 2.

On POD 1, the proportion of patients in the regular group with mild to moderate spontaneous pain (VAS score 1 to 2) was higher than that of the clean group (P = 0.0026). However, on POD 2, the proportions of patients with VAS scores 1 to 2 in both groups were similar and were not significant (P = 0.1).