. 2017 Jul 14;12(7):e0181229. doi: 10.1371/journal.pone.0181229

Table 6. Comparison of pregnancy maintenance outcomes according to combined cut-off value of β-hCG (> 126.5 mIU/mL) and progesterone (> 25.2 ng/mL) at 14 days after oocyte retrieval.

	β-hCG > 126.5 mIU/mL and progesterone > 25.2 ng/mL (n = 50)	β-hCG ≤ 126.5 mIU/mL or progesterone ≤ 25.2 ng/mL (n = 98)
Ongoing pregnancy	98.0% (49/50)^a	41.8% (41/98)^a
Miscarriage	2.0% (1/50)^a	58.2% (57/98)^a

P< .0001 by Fisher’s exact test