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Table 2 Univariate analysis of natural cycle frozen-thawed blastocyst transfer outcomes of non-PGS study cohort (n = 407)

From: Optimal parameters for determining the LH surge in natural cycle frozen-thawed embryo transfers

Parameter

Group A (n = 270)

Group B (n = 137)

Odds ratio (95% CI)

P value

Number of transferred blastocysts

1.5 ± 0.5

1.4 ± 0.5

0.50

Clinical pregnancy rate (%)

60.3

46.7

1.7 (1.1–2.6)

0.009

Spontaneous abortion rate (%)

12.2

14.0

0.85 (0.3–1.9)

0.71

Live birth rate (%)

52.9

40.1

1.6 (1.1–2.5)

0.01

  1. Values were expressed as median [interquartile range]