TABLE 3.

Learning curve for laparoscopic partial nephrectomy (LPN) and robot-assisted laparoscopic partial nephrectomy (RALPN).

			OR Time (mins)			WIT (mins)			EBL (mL)			Nephrometry
			value	(range)	p-value	value	(range)	p-value	value	(range)	p-value	value	(range)	p-value
LPN Experience	A	0–25	224*	(150–420)	0.01	27.1*	(0–65)	0.006	323*	(50–1200)	0.01	6.1	(4–9)	0.97
	B	26–50	188	(120–270)		19.2	(0–34)		254	(50–1700)		7.2	(4–9)
	C	51–75	185	(100–313)		17.7	(0–29)		189	(50–1200)		6.6	(4–10)
	D	75–102	175	(100–257)		17.4	(0–35)		217	(50–800)		6.2	(4–10)
RALPN Experience	X	0–24	141	(108–210)	0.99	14.2	(0–30)	0.4	119	(0–300)	0.6	6.3	(4–10)	0.1
	Y	25–48	163	(121–265)		13.9	(0–24)		125	(0–500)		5.6	(4–9)

Mean values are demonstrated in each column. The p-value to the right of each column describes the difference in learning curve trend using analysis of variance (ANOVA).

The p-values described by each asterisk describe differences in each parameter when pairs of groups were compared using students t-test.

^*For OR time, A was significantly different from B (p=0.07), C (p=0.03) and D (p=0.003).

^*For WIT, A was significantly different from C (p=0.04) and D (p=0.02).

^*For EBL, no difference was observed between groups.

^*For RENAL nephrometry, no difference was observed between groups.