Table 2 Incidence and severity of postoperative Sore Throat

Sore throat

Overall incidence

20(66.7%)

6(20.0%)

13.303

< 0.001^a

0 h postoperatively(T1)

18(60.0%)

4(13.3%)

14.067

< 0.001^a

2 h postoperatively(T2)

12(40.0%)

4(13.3%)

5.455

0.02^a

6 h postoperatively(T3)

11(36.7%)

3(10.0%)

5.963

0.015^a

12 h postoperatively(T4)

8(26.7%)

3(10.0%)

2.783

0.095

24 h postoperatively(T5)

4(13.3%)

2(6.7%)

0.185

0.667

48 h postoperatively(T6)

3(10.0%)

2(6.7%)

0.000

1.000

NRS of sore throat^b

0 h postoperatively(T1)

1(0–2)

0(0–0)

−3.822

< 0.001^a

2 h postoperatively(T2)

0(0–1)

0(0–0)

−2.448

0.014^a

6 h postoperatively(T3)

0(0–1)^c

0(0–1)

−2.497

0.013^a

12 h postoperatively(T4)

0(0–0)^c

0(0–0)

−1.684

0.092

24 h postoperatively(T5)

0(0–0)^c

0(0–0)

−0.881

0.378

48 h postoperatively(T6)

0(0–0)^c

0(0–0)

−0.524

0.600