Table 3 Comparison of intubation conditions among the three groups.
Variable | C4 | C6 | C8 | P value |
|---|---|---|---|---|
Intubation conditions | ||||
 Clinically acceptable/Clinically not acceptable | 34/15 | 42/4 | 45/4 | 0.005 |
 Excellent/Good/Poor | 21/13/15 | 36/6/4 | 39/6/4 | 0.001 |
Laryngoscopy | ||||
 Clinically acceptable/Clinically not acceptable | 49/0 | 46/0 | 49/0 |  |
 Easy/Fair/Difficult | 49/0/0 | 46/0/0 | 49/0/0 |  |
Vocal cords position | ||||
 Clinically acceptable/Clinically not acceptable | 49/0 | 46/0 | 49/0 |  |
 Abducted/intermediate/closed | 49/0/0 | 45/1/0 | 49/0/0 | 0.319 |
Vocal cords movement | ||||
 Clinically acceptable/Clinically not acceptable | 49/0 | 46/0 | 49/0 |  |
 None/moving/closing | 49/0/0 | 45/1/0 | 49/0/0 | 0.319 |
Movement of the limbs | ||||
 Clinically acceptable/Clinically not acceptable | 38/11 | 44/2 | 47/2 | 0.007 |
 None/slight/vigorous | 24/14/11 | 37/7/2 | 40/7/2 | 0.002 |
Coughing | ||||
 Clinically acceptable/Clinically not acceptable | 45/4 | 44/2 | 47/2 | 0.732 |
 None/diaphragm/sustained | 41/4/4 | 42/2/2 | 46/1/2 | 0.574 |
