Cormack and lehane grade P VALUE

Intubation difficulty score P VALUE

Bodymass index

0.964

0.027

Age

0.017

0.014

Interinscisor gap

0.078

0.095

Neck circumferance

0.028

0.739

Thyromental distance

0.064

0.238

Sternomental distance

0.077

0.038

Ratio of height to thyromental distance

0.059

0.022

MMP

0.192

0.005

Best oropharyngeal view

0.008

0.002