Table 3.

The analysis of potent pre- and intra-operative factors predictive of LNM

Pre-operative variables	Odds ratio (95% CI)	P value
*Age	1.016 (0.874–1.182)	0.8346
*BMI	0.849 (0.637–1.132)	0.2656
*PSA	1.013 (0.851–1.204)	0.8875
*ASA risk classification
(class 2, 3 vs. 1)	11.311 (1.067–119.910)	0.0440
*Serum albumin
(≤4 vs. >4 g/dl)	12.295 (1.633–92.545)	0.0148
*Biopsy Gleason Score
(7 vs. ≤6)	1.977 (0.083–47.378)	0.6740
(≥8 vs. ≤6)	48.585 (3.070–768.999)	0.0058
*Clinical T stage
(cT1, 2ab vs. cT2c, 3)	0.628 (0.069–5.684)	0.6791
*Blood loss at surgery	1.001 (0.999–1.002)	0.4466

R2 = 0.47

LNM – lymph node metastasis; PSA – prostate specific antigen; BMI – body mass index; ASA – American Society of Anesthesiologists