Table 1 Patients and operation characteristics

Age (yr)

48.0 (42.3–54.0)

47.0 (33.0–55.5)

47.5 (36.3–55.8)

Female, n(%)

17 (42.5)

15 (36.7)

21 (52.5)

BMI (Kg m⁻²)

23.4 (21.6–25.7)

23.4 (22.1–26.3)

22.2 (22.0–24.4)

ASA classification, n(%)

 I

2 (5.0)

5 (12.2)

4 (10.0)

 II

38 (95.0)

36 (87.8)

36 (90.0)

Mallampati classification, n(%)

 I

12 (30.0)

10 (24.4)

13 (32.5)

 II

28 (70.0)

31 (75.6)

27 (67.5)

  Operation duration (min)

116.6 ± 38.5

110.1 ± 38.9

111.6 ± 35.7

  Emergence duration (min)

43.2 ± 9.0

46.5 ± 7.8

45.9 ± 7.0

  Anaesthesia duration (min)

163.9 ± 47.9

148.4 ± 44.1

149.6 ± 41.1

  Cuff volume (ml)

6.0 (5.7–7.0)

6.0 (5.0–6.5)

6.0 (5.0–6.8)

Tube size, n(%)

 7.0

14 (35.0)

11 (26.8)

16 (40.0)

 7.5

26 (65.0)

29 (70.7)

23 (57.5)

 8.0

0 (0.0)

1 (2.5)

1 (2.5)

Sort of Surgeries, n(%)

 Lower extremity

19 (47.5)

22 (53.7)

18 (45.0)

 Urological

8 (20.0)

7 (17.0)

11 (27.5)

 abdominal

13 (32.5)

12 (29.3)

11 (27.5)