Table 2.

Preoperative data

	RALP	RRP	Total	p
Cases no., %	98 (34)	187 (66)	285
Age at operation, yr.
Meana±SE	68.9±6	67.7±6.9	68.1±6.7	0.196
Medianb (Range)	69.5 (51–79)	68 (47–85)	69 (47–85)	0.203
BMI, kg/m2,
Meana±SE	26.8±2.9	27.3±4	27.2±3.8	0.035
Medianb (Range)	26.3 (22.1–34)	26.4 (19.5–42.4)	26.4 (19.5–42.4)	0.672
BMIc, %				0.154
Normal (18.5–24.9)	26.8	33.3	32
Overweight (25–29.9)	61	44.8	48.1
Obese (30 or greater)	12.2	21.8	19.9
ASAc, %				0.517
I	1.9	5.3	4.4
II	72.2	72.5	72.4
III	25.9	22.2	23.1
Preoperative PSA ng/mL, medianb	7.4	8.7	8.1	0.082
PSAc ng/mL, %				0.003*
<4	4.1	9.7	7.7
4 to <10	68.4	46.8	54.2
10–20	19.4	23.7	22.2
>20	8.2	19.9	15.8
Prostatic volume, cm3
Meana±SE	45.4±23.1	41.6±20.1	42.9±21.2	0.279
Medianb (Range)	40 (13–149)	37 (12–160)	38 (12–160)	0.236
Operative time, min
Meana±SE	331.3±57.1	269.5±47.9	290.7±58.7	<0.0001*
Catheterization time, days
Meana±SE	9.2±5.6	12.6±10.2	11.4±9	0.001*
Hospitalization time, days
Meana±SE	9.7±3.4	13.5±9.1	12.2±7.9	<0.0001*
pT stagec, %				0.015*
T2	68.4	54.3	59.2
T3	31.6	45.7	40.8
N stagec, %				0.001*
Nx	3.1	1.1	1.8
N0	86.7	70.1	75.8
N1	10.2	28.9	22.5
Gleason scorec, %				0.079
<6	1	1.1	1.1
6	23.5	21.6	22.3
3+4	32.7	27.6	29.3
4+3	28.6	20.5	23.3
≥8	14.3	29.2	24
Surgical margins, %				<0.0001*
Positive multiple	12.2	4.3	7
Positive one	9.2	32.3	24.3
Negative	78.6	63.4	68.7

^*Statistically significant difference (p<0.05).

^aIndependent T-test.

^bMann-Whitney U Test.

^cChi-squared test.

RALP: robot-assisted laparoscopic radical prostatectomy; RRP: retropubic radical prostatectomy; BMI: body mass index; ASA: American Society of Anesthesiologists