Table 4.

Clinically significant adverse events^* associated with early medical abortion with simultaneous or interval administration of mifepristone and misoprostol from 1 May 2015 to 30 April 2016 at British Pregnancy Advisory Service (N=28,901)

Clinically Significant Adverse Event	Simultaneous (n=24,543)	Interval (n=4,358)	p-value
	% [95% CI] (n)	% [95% CI] (n)
Any	0.20 [0.15–0.26] (49)	0.18 [0.08–0.36] (8)	0.972
IV antibiotics	0.000 [0.00–0.02] (1)	0.02 [0.00–0.13] (1)	0.695
Blood transfusion	0.03 [0.01–0.06] (8)	0.09 [0.03–0.23] (4)	0.173
Hospital admission	0.20 [0.14–0.26] (48)	0.16 [0.06–0.33] (7)	0.765

^*An individual woman may experience more than one significant adverse event. Each woman is counted only once in the ‘Any’ category, which represents a combined variable for each of the three categories: IV antibiotics, blood transfusion, and hospital admission.