Table 2 -.

Partial (reverse order) allocation of 259 patients in phase one

Prognostic factor	Compositional category	Arm 1 frequencies		Arm 2 frequencies
		Absolute	Relative	Absolute	Relative
Current age	a0	71 (71)	0.467	49 (49)	0.458
	a1	53 (52)	0.349	38 (38)	0.355
	a2	28 (29)	0.184	20 (20)	0.187
OCD symptom severity	(L;M)	2 (2)	0.013	1 (1)	0.009
	(M;L)	2 (2)	0.013	1 (1)	0.009
	(L;H)	3 (3)	0.020	2 (2)	0.019
	(H;L)	3 (2)	0.020	0 (1)	0.000
	(M;M)	59 (59)	0.388	42 (42)	0.393
	(M;H)	19 (18)	0.125	12 (13)	0.112
	(H;M)	17 (16)	0.112	11 (12)	0.103
	(H;H)	47 (50)	0.309	38 (35)	0.355
Treatment history	h0	78 (82)	0.513	61 (57)	0.570
	h1	49 (44)	0.322	30 (35)	0.280
	h2	25 (26)	0.165	16 (15)	0.150
Gender	m	63 (63)	0.414	44 (44)	0.411
	f	89 (89)	0.586	63 (63)	0.589
Sample size	Arm size	152	0.587	107	0.413
	Complement	107	0.413	152	0.587