Table 2.

Details of the data collection forms regarding anaesthetic management

Anaesthetic management
Items	Contents for reporting
Status of nil per os	Yes/no
Full-stomach pathophysiology	Yes/no
Drainage of gastric contents before airway management	Yes/no
Premedication	None, midazolam, diazepam, others
Syndrome assuming difficult airway	Yes/no
Preoperative difficult airway evaluation	None, preoperative recognition of possible difficult airway, history of difficult airway, limited cervical range of motion, width of mouth opening ≤2 patient’s fingers, hyomental distance ≤2 patient’s fingers, upper airway obstruction, midface hypoplasia, macroglossia, micrognacia, macrocephaly.
Difficult mask ventilation	Yes/no
Types of anaesthesia induction	Inhalational with or without maintaining spontaneous breathing, intravenous with or without maintaining spontaneous breathing, rapid sequence induction with or without positive pressure ventilation, awake induction with only topical local anaesthetics, others.