Table 4.

​Crude costs per cost category in euros (€)

Cost category	Mean costs (SEM) in €		Cost difference (95% CI) in €
	Intervention	Control
Direct costs
Primary care	340 (26)	405 (26)	−65 (−134 to −2)
Secondary care	478 (228)	229 (42)	249 (58 to 515)
Alternative care	742 (218)	322 (55)	421 (182 to 722)
Medication	29 (7)	44 (9)	−15 (−45 to −0.70)
Intervention	70	0	70 (N/A)
Indirect costs
Absenteeism	1034 (242)	1547 (235)	−513 (−941 to −77)
Presenteeism	5735 (681)	6342 (537)	−607 (−2076 to −831)
Unpaid productivity	4000 (887)	5047 (616)	−1047 (−1954 to −203)
Total societal costs	8444 (820)	8979 (619)	−535 (−2230 to 1172)