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Table 2 The pregnancy outcomes in artificial FET cycles using strengthened luteal phase support

From: Strengthened luteal phase support for patients with low serum progesterone on the day of frozen embryo transfer in artificial endometrial preparation cycles: a large-sample retrospective trial

 

Low P+ strengthened LPS

(Group A, n = 1295)

Normal P+ routine LPS

(Group B, n = 1261)

Crude RR (95%CI)

Adjusted RR (95%CI)

P value

Biochemical pregnancy rate

52.5% (680/1295)

58.1% (733/1261)

0.80 (0.68,0.93)

0.80 (0.67.0.96)

0.014

Clinical pregnancy rate

48.4% (627/1295)

53.2% (671/1261)

0.91 (0.84,0.98)

0.81 (0.68,0.96)

0.016

Multiple pregnancy rate

24.9% (186/627)

26.7% (179/671)

0.96 (0.85,1.07)

0.79 (0.58,1.09)

0.15

Miscarriage rate

16.0% (99/627)

14.7% (97/671)

1.05 (0.90,1.22)

1.09 (0.77,1.54)

0.62

Live birth rate

39.5% (511/1295)

43.3% (546/1261)

0.92 (0.85.1.0)

0.84 (0.70,1.0)

0.054

  1. Adjusted for BMI, baseline FSH values, antral follicle counts, the number and stage of embryos transferred