. Author manuscript; available in PMC: 2014 Mar 19.

Published in final edited form as: Spine (Phila Pa 1976). 2013 Mar 1;38(5):E293–E298. doi: 10.1097/BRS.0b013e318283be6e

Table 4.

Analysis restricted to subjects 20 years or younger of age

	Unadjusted Analysis			Adjusted Analysis^†
	OR	95% CI	p-value	OR	95% CI	p-value
Isolated & Multiple CVM without additional CMs (N=48)	13.2	5.0 – 35.0	<0.001	13.0	3.1 – 55.2	0.005
Isolated & Multiple CVM with additional CMs (N=88)	11.0	4.5 – 26.9	<0.001	10.3	2.9 – 36.9	<0.001
All Isolated & Multiple CVM (N=137)	11.8	5.1 – 27.3	<0.001	13.0	4.3 – 39.7	<0.001

^†

adjusted for gender and institution, using a multivariate logistic regression analysis model