Table 4.

Administrative costs of fine, based on microcosting of activity in the intervention component of the trial (n=3333) (2017 DKK)

	Units	Unit cost	Total	Total per appointment
Office clerk
Telephone/mail (min)	727	13	9451	2.84
Invoices and credit notes (min)	650	13	8450	2.54
Other fine-related administration (min)	155	13	2015	0.60
Subtotal office clerk	NA	NA	19 916	5.98
Materials
Fine letter (electronic)	129	0.54	70	0.02
Fine letter (postal mail)	14	6.66	93	0.03
Reminder letter	178	6.66	1185	0.36
Subtotal materials	NA	NA	1348	0.40
Total exclusive overhead			21 264	6.38
Overhead			4466	1.34
Total inclusive overhead			25 730	7.72

NA, not applicable.