Comparison 3. NSAIDs versus ethamsylate.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Menstrual blood loss after treatment (mL/cycle)	2	82	Mean Difference (IV, Fixed, 95% CI)	‐42.88 [‐86.25, 0.50]
2 Menstrual blood loss 1–6 months after treatment (mL/cycle)	1	31	Mean Difference (IV, Fixed, 95% CI)	‐70.3 [‐158.88, 18.28]
3 Proportion with no subjective improvement in MBL	1	50	Peto Odds Ratio (Peto, Fixed, 95% CI)	0.70 [0.23, 2.12]
4 Proportion with no improvement in quality of life or dysmenorrhoea (or both)	1	50	Peto Odds Ratio (Peto, Fixed, 95% CI)	0.83 [0.18, 3.72]
5 Number of days' bleeding	1	46	Mean Difference (IV, Fixed, 95% CI)	‐0.40 [‐1.56, 0.76]
6 Proportion who found treatment unacceptable	1	50	Peto Odds Ratio (Peto, Fixed, 95% CI)	0.20 [0.07, 0.61]