Table 3.

 Effect of treatment and mean (SD) costs per patient at three month follow-up

	Occupational therapy (n=67)	Usual care (n=65)	Difference (95% CI)
Effect
No (%) of “successful treatments”	25 (37)	1 (1.5)	36% (23% to 47%)
No with missing data	1	2	—
NNT (95% CI)	2.8 (2.7 to 2.9)	—	—
Costs (€)*
Total care costs	12 563 (6628)	14 311 (7833)	−1748 (−4244 to 748)
Intervention (OT):
Visits	774 (151)	0	774 (737 to 810)
Additional	409 (78)	0	409 (391 to 429)
Total	1183 (228)	0	1183 (1128 to 1239)

NNT=number needed to treat.

*Costs per patient averaged over all patients in each group.