Comparison 1. Urethral injection therapy versus no treatment.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Number not improved (worse or unchanged) within first year	1		Risk Ratio (M‐H, Fixed, 95% CI)	Totals not selected
1.1 periurethral autologous fat vs saline	1		Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
2 Pad weight test	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
2.1 periurethral autologous fat vs saline	1		Mean Difference (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
3 Disease‐specific measures	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
3.1 periurethral autologous fat vs saline	1		Mean Difference (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
4 Number of patients requiring more than 1 treatment to achieve maximum benefit	1		Risk Ratio (M‐H, Fixed, 95% CI)	Totals not selected
4.1 periurethral autologous fat vs saline	1		Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
5 Peri‐ and postoperative complication	1		Risk Ratio (M‐H, Fixed, 95% CI)	Totals not selected
5.1 periurethral autologous fat vs saline	1		Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
6 Serious morbidity (such as pulmonary embolism) or mortality	1		Risk Ratio (M‐H, Fixed, 95% CI)	Totals not selected
6.1 periurethral autologous fat vs saline	1		Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]