Table 2.

Outcomes between treatment and control groups

	Tranexamic acid (n = 20) mean + SD or median (IQR)	Control (n = 20) mean + SD or median (IQR)	Mean or median difference	95% CI
Pre-operative AMH (ng/ml)	2.9 ± 1.5	2.4 ± 1.8	0.50	− 0.56 to 1.56
Post-operative AMH (ng/ml)	2.0 ± 1.5	1.6 ± 1.1	0.40	− 0.44 to 1.24
Difference of AMH level (ng/ml) a	0.8 ± 1.0	0.7 ± 1.2	0.10	− 0.61 to 0.81
Operative time (min)	130.0 (82.5)	120 (106.3)	0	− 35.00 to − 30.00
Estimated blood loss (ml)	50.0 (50.0)	65.0 (150)	0	− 50.00 to 0
Length of hospital stay (days)	1.8 ± 0.4	1.9 ± 0.4	− 0.10	− 0.36 to 0.16

Note: AMH anti-Müllerian hormone, IQR interquartile range, SD standard deviation, CI confidence interval

^aDifference of AMH level = pre-operative AMH-post-operative AMH

*The test of significance for pilot trials is not helpful as such studies are not designed for statistical significance