Table 1 Patient characteristics in both study groups. Values are expressed as either mean(standard deviation) or median (ranges)

Age (yr)

28.50 (24.00–40.75)

27.50 (22.25–32.75)

0.303

1.00 (–5.41–7.41)

Sex (men/women)

23/9

20/12

0.424

0.65 (0.23–1.87)

Height (m)

1.70 (9.16)

1.68 (8.00)

0.470

1.56 (–2.74–5.86)

Weight (kg)

65.37 (12.08)

62.62 (10.04)

0.326

2.75 (–2.80–8.30)

BMI^d (kg/m²)

22.60 (2.73)

22.11 (2.57)

0.464

0.49 (–0.84–1.82)

ASA^e (I/II)

31/1

29/3

0.302

3.2 (0.32–32.60)

Mallampati classification (I/II/III/IV)

14/5/7/6

11/3/8/10

0.588

NA^f

Cormack-Lehane grade (I,II,III,IV)

8/7/10/7

4/6/14/8

0.543

NA

Difficulty of intubation (easy/normal/difficult)

7/13/12

5/12/15

0.702

NA

Anesthesia time (min)

30.00 (26.25–40.00)

35.00 (30.00–40.00)

0.462

−5.00 (−11.59−1.59)