. Author manuscript; available in PMC: 2017 Jun 6.

Published in final edited form as: J Clin Neurosci. 2016 Jul 6;31:166–171. doi: 10.1016/j.jocn.2016.03.004

Table 4.

Multivariate logistic regression for second ETV after failure (n = 133)

Characteristic	OR^a	95% CI		p Value
Age (years)
18–39	1.00	REF		REF
40+	0.24	0.08	0.72	0.011
Gender
Male	1.00	REF		REF
Female	1.64	0.57	4.70	0.36
Region
Northeast	1.00	REF		REF
Midwest	0.69	0.19	2.48	0.57
South/West	0.20	0.06	0.72	0.01
Payer Type
PPO/Comprehensive	1.00	REF		REF
HMO/Other	1.10	0.75	1.62	0.63
Etiology
Tumor	1.00	REF		REF
Congenital	0.65	0.11	3.83	0.64
Hemorrhage	1.10	0.20	6.10	0.91
Other	0.47	0.14	1.61	0.23
Prior shunt
No	1.00	REF		REF
Yes	0.73	0.22	2.41	0.61
Index length of stay	0.96	0.91	1.01	0.13
Constant	2.23	0.51	9.69	0.28

OR > 1 favors ETV, OR < 1 favors shunt

OR = odds ratio