Table 3.

Risk of feeding tube dependence with and without neck dissection (N=67)

Relative Risk of Persistent Feeding Tube	No ND	ND	Relative Risk	95% CI	p-value
12 months (unadjusted)	26%	30%	1.14	0.51-2.58	0.745
12 months (adjusted)	24%	29%	1.19	0.55-2.59	0.658
18 months (unadjusted)	15%	33%	2.27	1.08-4.75	0.030
18 months (adjusted)	11%	52%	4.74	2.07-10.89	0.001
24 months (unadjusted)	9%	33%	3.78	1.72-8.30	0.001
24 months (adjusted)	7%	51%	7.66	2.6-22.59	0.001

Abbreviations: ND neck dissection, CI confidence interval