Table 2. Cox proportional analysis for the prediction of CRPC progression-free survival.

Covariant	HR	95% CI	P-value
miR-27b	0.255	0.069-0.944	0.0407
Gleason score	2.003	0.747-5.374	0.1674
cT stage	2.111	0.490-9.098	0.3162
cN stage	2.28	0.372-13.975	0.3729
cM stage	1.021	0.203-5.124	0.9799
PSA	1.001	1.000-1.001	0.0719
Age	1.045	0.949-1.150	0.3674