Distribution pattern and prognosis of metastatic lymph nodes in cervical posterior to level V in nasopharyngeal carcinoma patients

Table 2 The data of linear-regression analysis for neck node

Variable	B	Std.Error	t	p	95% CI for B
Ib	0.014	0.036	0.374	0.708	−0.057-0.085
IIa	−0.004	0.016	−0.228	0.820	−0.035-0.028
IIb	− 0.004	0.019	− 0.224	0.823	− 0.042-0.034
III	−0.012	0.018	0.669	0.504	−0.047-0.023
IVa	0.062	0.026	2.366	0.018	0.011–0.114
IVb	0.106	0.059	1.776	0.076	−0.011-0.222
Va	0.118	0.021	5.729	0.000	0.078–0.159
Vb	0.243	0.038	6.391	0.000	0.168–0.318
Vc	0.435	0.071	6.112	0.000	0.295–0.574
VIIa	0.017	0.016	1.041	0.298	−0.015-0.048
VIIb	0.001	0.077	0.017	0.987	−0.151-0.153
VIII	−0.162	0.101	−1.597	0.111	−0.360-0.037

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