Table 4.

Results of the univariate analysis of PFS in the total cohort and in the PET-positive and PET-negative subgroups.

Criteria	All populations	PET-positive subgroup	PET-negative subgroup
	P-value  HR (95% CI)	P-value   HR (95% CI)	P-value HR (95% CI)
Recurrence PSA (≥1.2 vs.< 1.2)	<0.001*    0.49 (0.36-0.67)	0.012*        0.64 (0.45-0.91)	0.030*   0.71 (0.52-0.97)
Post-surgery PSA (≥0.2 vs. <0.2)		0.009*      1.79 (1.16-2.76)	0.088*   1.32 (0.96-1.81)
GS at diagnosis (≥8 vs. 4 + 3) (≥8 vs. 3 + 4) (≥8 vs. <6)	0.520     0.88 (0.59-1.30) <0.001*    0.35 (0.22-0.54) 0.060*     0.55 (0.30-1.02)

*Significant results.