Activin A and Follistatin as Biomarkers for Ectopic Pregnancy and Missed Abortion

Table 1

Activin A and follistatin serum levels (pg/mL) in healthy intrauterine pregnancies (IUP), missed abortions (MA), and ectopic pregnancies (EP) presented as median, range, and interquartile values.

(pg/mL)	Activin A			Follistatin
	IUP (𝑛=33)	MA (𝑛=30)	EP (𝑛=30)	IUP (𝑛=33)	MA (𝑛=30)	EP (𝑛=30)
Mean (±SD)	843±338	442±248	277±94	5011±1786	3510±2742	3189±3130
Median (IQR)	788 (616–1001)	350 (264–562)	265 (207–309)	4794 (3586–6159)	3241 (2207–4190)	2606 (1626–3264)