Pain score
The CD group(6.4( 95 per cent CI, 6.11 to 6.59)) showed significantly higher pain scores than other two groups on the 1st postoperative days (p < 0.05), and no statistically significant difference was showed between HS group(5.7( 95 per cent CI, 5.47 to 5.88)) and coblation group(5.7( 95 per cent CI, 5.45 to 5.85)) (p > 0.05). Patients of cobation group(3.05( 95 per cent CI, 2.80 to 3.30), 1.33( 95 per cent CI, 1.17 to 1.48), respectively) showed significantly lower pain scores than HS group(3.75( 95 per cent CI, 3.50 to 4.00), 1.60( 95 per cent CI, 1.43 to 1.77), respectively) and CD group(4.08( 95 per cent CI, 3.83 to 4.32), 1.70( 95 per cent CI, 1.51 to 1.89), respectively) on the 3th and 7th postoperative days(p < 0.05). There was no statistically significant difference in patients’ pain scores among three groups on the 14th postoperative day(p > 0.05) (Figure 1).