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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: Fertil Steril. 2016 Apr 14;106(2):311–316. doi: 10.1016/j.fertnstert.2016.03.045

Table 2.

Embryo transfer characteristics and pregnancy outcomes

Vaginal
Deliveries Only		 History of CD P-value
Transfer time (sec) 157 [128–190] 187 [142–309] 0.002
Mucus on catheter 29/109 (27%) 38/85 (45%) 0.010
Blood on catheter 9/109 (8%) 18/85 (21%) 0.012
Retained embryo 1/109 (1%) 2/85 (2%) 0.582
Easy transfer 104/109 (95%) 62/82 (76%) <0.001
Positive hCG 61/109 (56%) 45/85 (53%) 0.771
Clinical pregnancy 53/109 (49%) 35/85 (41%) 0.313
Live birth 42/109 (39%) 27/85 (32%) 0.366

Caption:

Values reported as fraction (%) and median [interquartile range]. Blood and mucus on catheter include microscopic blood and mucus contamination. Three of the charts in the history of CD group did not report the difficulty of the transfer.