Table 2.

Univariable analysis of survival by the Cox proportional hazards model

Variable	Overall survival		Progression-free survival
	HR (95% CI)	P	HR (95% CI)	P
ABCA1 methylation	1.106 (1.008–1.213)	0.033 a	1.096 (1.020–1.179)	0.013
Age	2.014 (0.712–5.701)	0.187	1.309 (0.579–2.963)	0.518
Stage	11.321 (2.48–51.679)	0.02	14.278 (4.233–48.154)	<0.01
Grade	22.559 (2.849–178.624)	0.03	20.586 (4.817–87.977)	<0.01

^aItalicized value indicates P < 0.05.