Table 3:

multivariate logistic regression on the outcome of persistent SI (compared to resolution of SI) among 1,931 patients with baseline SI.

	Exp(B)	95% C.I.		P Value
		Lower	Upper
Age	1.00	1.00	1.00	0.51
Sex
Female	ref	.	.
Male	1.01	0.84	1.23	0.89
Admission Status
Inpatient	ref	.	.
Outpatient	1.64	1.33	2.01	<.001
Diagnosis				0.23
Other	ref	.	.
Major depressive disorder	0.84	0.52	1.34	0.46
Bipolar disorder	0.70	0.43	1.16	0.17
Baseline QIDS	1.01	0.99	1.04	0.37
Baseline SI Score				<.001
1	ref	.	.
2	2.17	1.74	2.70	<.001
3	3.92	3.01	5.12	<.001
Initial Electrode Placement
Unilateral	ref	.	.
Bilateral	0.90	0.54	1.51	0.70
Change in Electrode Placement
No	ref	.	.
Yes	2.11	1.49	3.00	<.001
Final Treatment Number
5	ref	.	.
10	0.88	0.71	1.09	0.23