Oncologic and perioperative outcomes of laparoscopic versus open radical nephrectomy for the treatment of renal tumor (> 7 cm): a systematic review and pooled analysis of comparative outcomes

Table 2 Baseline characteristic variable

Baseline characteristic	No. of studies	LRN vs. ORN	Heterogeneity I² (%)	p-value
Age WMD (95% CI)	16	0.29 (−0.44, 1.01)	19	0.44
Male OR (95% CI)	17	1.14 (0.97, 1.35)	0	0.11
BMI WMD (95% CI)	9	0.16 (−0.03, 0.35)	0	0.1
Right side OR (95% CI)	15	1.07 (0.88, 1.30)	0	0.51
ASA≥3 WMD (95% CI)	5	0.82 (0.51, 1.33)	61	0.42
≥pT3 OR (95% CI)	10	0.75 (0.54, 1.04)	49	0.09
Fuhrman grade≥3 OR (95% CI)	12	1.27 (1.04, 1.56)	0	0.02
Tumor size WMD (95% CI)	16	0.64 (0.38, 0.9)	68	<0.00001

LRN Laparoscopic radical nephrectomy, ORN Open radical nephrectomy, BMI Body mass index, ASA American Society of Anesthesiologists score, OR Odds ratio, WMD Weighted mean difference, CI Confidence interval

ISSN: 1477-7819