Number of subjects

Grade of mask ventilation

preparalysis

postparalysis

Grade 1

89

92

Grade 2

8

8

Grade 3

3

0

Grade 4

0

0
Table 6 summarizes the results of preoperative airway predictors with grade of mask ventilation both pre and post paralysis.
Table 5: Grade of mask ventilation preparalysis and postparalysis.