Table III.

Cox regression prognosis analysis for distant metastasis-free survival in the DNA-PKcs groups.

Variate	B	SE	Wald	P-value	Exp(B)	95.0% CI for Exp(B)
Age	−0.003	0.023	0.014	0.906	0.997	0.953 to 1.044
Pathological subtype	0.442	0.661	0.449	0.503	1.557	0.427 to 5.680
AJCC stage	1.466	0.527	7.730	0.005	4.331	1.541 to 12.173
DNA-PKcs(+)	−1.593	0.461	11.966	0.001	0.203	0.082 to 0.501

DNA-PKcs, DNA-dependent protein kinase catalytic subunit; AJCC, American Joint Committee on Cancer. B, coefficient value; SE, standard error; Exp(B), relative risk; CI, confidence interval.