MACOCHA score to determine difficult intubation

	Points
Factors related to patient
Mallampati score III or IV	5
Obstructive apnea syndrome	2
Reduced mobility of cervical spine	1
Limited mouth opening <3 cm	1
Factors related to pathology
Coma	1
Severe hypoxemia (<80%)	1
Factor related to operator
Non-anaesthesiologist	1
Total	12
Reference: Am J Respir Crit Care Med. 2013 Apr 15;187(8):832-9