Placebo (n=26)

Rocuronium (n=26)

P Value

Age, yr

65±13

66±14

NS

Weight, kg

88±19

84±14

NS

Height, cm

173±7

177±8

NS

Body mass index, kg/m2

28±6

27±5

NS

Male

24

24

NS

Female

2

2

NS

Mallampati class

I

9 (35%)

9 (35%)

II

11 (42%)

17 (65%)

<0.05

III

6 (23%)

0 (0%)

Thyromental distance, cm

6.7±1

6.6±1

NS

Mouth opening, cm

4.9±0.9

4.9±1

NS

Free neck flexion

21 (81%)

21 (81%)

NS

Resricted neck flexion

5 (19%)

5 (19%)

NS

Teeth present

13 (50%)

12 (46%)

NS

Table 1: Characteristics of the Patient and their Airway Classification.