Days with incontinence per week
Study	Group	Measure	Patients	Baseline	Three months	12 months	Change (%)	Notes
Tjandra 2008	Control group	Mean±SD	60	3.3±2.1	2.9±2.4	3.1±1.8	‐0.2 (‐6%)	P > 0.05 at 3 months and 12 months compared with baseline. % change is reported as the difference between baseline and at 12 months.
Tjandra 2008	SNS group	Mean±SD	53	3.3±2.4	1±1.7	1±1.7	‐2.3 (‐70%)	P < 0.0001 at all time points compared with baseline. % change is reported as the difference between baseline and at 12 months.