Implementation of an audit and feedback module targeting low-value clinical practices in a provincial trauma quality assurance program: a cost-effectiveness study

Table 4 Scenario analysis

Scenarios	Costs difference (2020 CAN $)	LVPs avoided	ICER (Costs per LVP avoided)
A&F characteristics
Adding virtual facilitation visits^a	$301,849	-2,799	-$108
Increasing frequency of feedback to monthly^b	$666,709	-4,333	-$154
Implementing in high-volume trauma centers only (level I and II)^c	$79,298	-1,646	-$48
Economic evaluation assumptions
Discount rate of 0%	$307,662	-2,625	-$117
Discount rate of 5%	$382,858	-1,927	-$199
10 year-lifespan	$571,575	-5,399	-$106
Increasing the costs of LVPs by 100%	$23,385	-2,371	-$10

^aThe addition of virtual facilitation visits would increase the cost of the intervention by $3,804 per year (salaries of two professionals for a one-hour visit in each center) with an efficiency that increases by 1.51 percentage points each year compared to the base-case scenario [26]
^bA monthly feedback frequency would increase the module's effectiveness by 9.65 percentage points each year [26] compared with the base-case scenario, and increase annual costs by $121,220 (cost of producing 11 additional reports per year per center)
^cIntervention costs for level III and IV trauma centers are excluded ($353 270)

ISSN: 1472-6963