. Author manuscript; available in PMC: 2013 Oct 4.

Published in final edited form as: Mol Psychiatry. 2008 May 20;15(1):64–79. doi: 10.1038/mp.2008.55

Table 2.

Number (and percentage) of patients by categorical response designation at each treatment rating point during chronic DBS stimulation

DBS duration	< 25% YBOCS ↓ (no. of patients)	≥25 < 35% YBOCS ↓ (no. of patients)	≥35% YBOCS ↓ (no. of patients)	Total N
1 Month	17 (68%)	1 (4%)	7 (28%)	25
3 Months	11 (42%)	2 (8%)	13 (50%)	26
6 Months	9 (37.5%)	4 (16.5%)	11 (46%)	24
12 Months	7 (33%)	4 (19%)	10 (48%)	21
24 Months	3 (17.5%)	3 (17.5%)	11 (65%)	17
36 Months	3 (25%)	2 (25%)	7 (58%)	12
Last follow-up	7 (27%)	3 (11.5%)	16 (61.5%)	26

Abbreviations: DBS, deep brain stimulation; YBOCS, Yale–Brown Obsessive Compulsive Scale.