Table 4.

Resource use/economic impact (Table 4)

114/205 (56%) studies reported on 24/202 (12%) outcomes and subsequently categorised into 8 outcome domains and 4 outcome categories.

Outcome category (Delphi outcome)	Outcome domain	Outcome verbatim
Cranioplasty procedure related	Timing of procedure	Timing
	Repeat intervention	Re-intervention
		Removal of implant
		Repeat operation
		Revision
	Implant failure	Implant failure
Hospital stay/ follow up	Length of hospitalisation	Hospital stay
		Hospital ward stay
		Length of hospitalisation
		Interval of hospital visits
	Length of intensive care stay	ICU stay
Vocational rehabilitation	Return to work/study	Working with limitations
		Working without limitations
		Return to work
		Incapable of working
Costs	Cranioplasty costs	Cost of implant
		Cost of operation
		Operating room and surgical costs
		Total costs
		Cost of implant
	Health economic evaluation	Cost effectiveness
		Re-intervention
		Total costs
		Re-operation before cranioplasty