Table 1.

Standard Protocol Items: Recommendations for Interventional Trials checklist, enrolment, interventions and assessments.

	Study period
	Eligibility screen	Randomise and allocate	Periprocedural				Final outcome assessment
Timepoint	Decision to perform TI	Before TI	Induction	TI	0–2 min post TI	0–48 hours post TI	Discharge or 30 days after enrolment
Enrolment:		X
Eligibility screen	X
Allocation		X
Interventions:
Bougie				X
Endotracheal tube with stylet				X
Screening for contraindications	X	X	X	X
Assessments:
Baseline variables	X	X
Periprocedural variables		X	X	X	X
Clinical outcomes						X	X

Induction, Administration of a sedative or neuromuscular blocking agent; TI, tracheal intubation.