Comparison of functional outcomes after retropubic, laparoscopic and robot-assisted radical prostatectomy: A meta-analysis

Table 9 Subgroup analyses of 6-mo urinary continence recovery after robot-assisted radical prostatectomy or retropubic radical prostatectomy

Subgroup	Study	Sample size	Heterogeneity I2 (%)	P-value	Meta-analysis
					OR	95%CI
Country	Asia	809	92	0.35	1.93	0.48-7.70
	Europe/America	862	0	< 0.01	2.32	1.47-3.67
Continence	0 pad	828	63	< 0.01	3.09	1.65-5.80
definition	0-1 pad	673	82	0.52	1.62	0.37-7.06
Study design	prospective	448	0	< 0.01	2.48	1.44-4.26
	retrospective	1223	80	0.1	2.07	0.87-4.95
Loss of follow-up	≤ 20%	1161	80	0.1	2.00	0.88-4.53
	> 20%	510	0	< 0.01	2.99	1.55-5.77

OR: Odds ratio; CI: Confidence interval.