Table 2 Incidence and severity of cough reflex and postoperative airway complications

Primary outcome

 Incidence of cough reflex, n (%)

24 (60.0)

4 (9.8)^*

5 (12.5)^*

 < 0.001

 Grade of cough reflex, (score)

2 (1–2)

1 (1–1)^*

1 (1–1)^*

 < 0.001

Secondary outcome

 Incidence of complications, n (%)

6 (15.0)

13 (31.7)

5 (12.5)

0.062

  Hoarseness, n(%)

0 (0.0)

8 (19.5)^#

2 (5.0)

0.04

  Sore throat, n(%)

3 (7.5)

4 (9.8)

3 (7.5)

0.913

  Others, n(%)

3 (7.5)

1 (2.4)

0 (0.0)

0.160