. 2015 Dec 21;5:40. doi: 10.1186/s13561-015-0078-y

Table 2.

Incremental costs of the ADHD group in comparison to the control group before and after the index event (in €)

Type of costs	ADHD Group Mean [SD]		Control Group Mean [SD]		Incremental costs			difference-in-difference
Type of costs	In the year before diagnosis	In the year after diagnosis	In the year before diagnosis	In the year after diagnosis	ADHD-group: After vs. before diagnosis	ADHD group to control group before diagnosis	ADHD group to control group after diagnosis	difference-in-difference
Remedies and aids	251 [507]	367 [603]	106 [475]	104 [578]	116^a	145^a	263^a	118
Outpatient care	430 [485]	801 [674]	189 [266]	149 [299]	371^a	241^a	652^a	411
Outpatient surgery	7 [72]	8 [91]	6 [90]	7 [89]	1	1^a	1	0
Inpatient care	395 [2881]	706 [3549]	157 [1734]	147 [1417]	311^a	238^a	559^a	321
Pharmaceuticals	198 [1329]	332 [1245]	128 [3003]	131 [2549]	134^a	70^a	200^a	130
Sick leave payments	23 [516]	45 [787]	5 [170]	13 [490]	22^a	18^a	32^a	14
Rehabilitation	7 [191]	28 [397]	4 [132]	9 [301]	21^a	7^a	19^a	12
Total	1311 [3502]	2287 [4179]	595 [3622]	560 [3308]	976^a	720^a	1726^a	1006

^a:significant difference (at the 0.05-α-level); SD standard deviation