Table 5.

Binary logistic regression analysis of significant clinical predictors (Y-BOCS items and factors) of response to rTMS treatment

Predictors Nagelkerke R2 0.46(item-based analysis)	Mean±SD item score in NR and (R)	Predicted group	β	Wald	df	p	Odd ratio (e β)	95% CI
								Lower	Upper
Individual Y-BOCS factors		Non-responders
Interference due to obsessive thoughts (2)	2.11 ± 0.93 (1.17 ± 0.69)		1.34	9.89	1	0.002	3.83	1.66	8.86
Resistance against compulsions (9)	2.0 ± 1.11 (1.0 ± 0.94)		0.86	7.41	1	0.006	2.38	1.27	4.45
Constant			−3.31	13.06	1	0.01	0.03
Time occupied by obsession (1)	2.40 ± 1.03 (1.53 ± 0.86)					0.10
Distress associated with obsessions (3)	2.51 ± 0.74 (1.77 ± 1.07)					0.14
Resistance against obsessions (4)	1.69 ± 0.90 (1.30 ± 0.79)					0.29
Control over obsessions (5)	2.51 ± 0.88 (1.67 ± 0.84)					0.21
Time spent on compulsions (6)	1.77 ± 0.97 (1.07 ± 0.74)					0.68
Interference due to compulsions (7)	1.86 ± 1.06 (0.97 ± 0.92)					0.96
Distress associated with compulsions (8)	2.03 ± 1.04 (1.03 ± 1.15)					0.81
Control over compulsions (10)	2.17 ± 1.12 (1.23 ± 0.97)					0.67
2-factor Model [57] Disturbance factor (items, 2,3,7,8)	8.51 ± 2.86 (4.93 ± 2.67)		0.51	13.41	1	0.001	1.67	1.27	2.20
Symptom severity factor (items 1,4,5,6,9,10)	12.54 ± 3.76 (7.80 ± 3.72)					0.09
3-factor model [58] Obsession severity factor (items 1–3,5)	9.54 ± 2.74 (6.13 ± 2.90)		0.37	8.19	1	0.004	1.45	1.12	1.87
Resistance factor (items 4,9)	3.86 ± 1.36 (2.30 ± 1.37)		0.59	5.16	1	0.023	1.82	1.08	3.02
Compulsion severity factor (items 6–8,10)	7.82 ± 3.51 (4.30 ± 3.17)					0.25

Predicted group = the group coded with value 1 in binary regression analysis; NR non-responders, R responders; Significant results are highlighted (p ≤ 0.05) in bold