Table 1.

Base case parameters.

Parameter	Base case
Proportion of patients with AI ⩾10%	NAVA: 21%PSV: 52%Difference: 31%
Days on mechanical ventilation	Synchronous patients: 5 daysAsynchronous patients:* 10 daysBase case population:**a 7.1 days
Cost per day on mechanical ventilation	Lund: US$5007
Cost per NAVA catheter	US$351
Average number of catheters per patient	Catheter switch every fifth day: 1.76

^*With AI ⩾10%. **Assuming 50% of patients on NAVA and 50% on PSV.

AI, asynchrony index; NAVA, Neurally Adjusted Ventilator Assist; PSV, pressure support ventilation.