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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Spine J. 2013 Oct 23;14(7):1228–1234. doi: 10.1016/j.spinee.2013.09.043

Table 6.

Cox regression analysis for Predicting Clinical Adjacent Segment Pathology requiring Surgery in Patients with C5/6 Level Fusion (n=54)

Risk Factor Hazard ratio (95% CI) p value
Distance from fusion mass to C7 plumb line 0.828 (0.714, 0.959) 0.012