Table 2 Analysis by group and order of endoscopy

Time to adequate visualization of the glottis (sec)

92.9 ± 42.60 (78.3 - 107.4)

65.6 ± 30.4 (55.2 - 76.0)

76.7 ± 32.7 (65.5 - 87.8)

70.4 ± 37.0 (57.8 - 83.0)

0.10

Number of mucosal contacts

5.2 ± 4.4 (3.7 - 6.7)

3.2 ± 3.2 (2.1 - 4.3)

4.9 ± 4.9 (3.2 - 6.6)

3.3 ± 2.8 (2.3 - 4.2)

0.77

Percentage of time adequate visualization of the airway was maintained

82.9 ± 16.3 (77.3 – 88.4)

82.4 ± 21.5 (75.1 – 89.8)

77.8 ± 22.4 (70.2 – 85.5)

83.4 ± 17.7 (77.3 – 89.4)

0.38

Learner comfort (self reported)*

4.6 ± 2.0

5.5 ± 1.9

3.9 ± 1.9

5.9 ± 2.0

0.13

Patient comfort (self reported)*

3.27 ± 2.4

3.1 ± 3.0

3.6 ± 3.1

2.9 ± 2.5

0.62

Patient willingness to repeat the examination*

1.6 ± 2.4

1.6 ± 2.9

1.7 ± 2.7

1.5 ± 2.4

0.84

Learner manipulation*

3.6 ± 2.7

5.3 ± 2.7

3.2 ± 2.3

5.9 ± 2.0

0.23

Learner comfort (investigator evaluation)*

3.5 ± 2.5

5.3 ± 2.5

3.1 ± 2.4

5.9 ± 2.2

0.24

Patient comfort (investigator evaluation)*

6.5 ± 2.1

7.1 ± 2.1

6.4 ± 2.5

7.1 ± 2.0

0.92