Table 1: Comparison between women with and without cleavage stage embryo with good morphology on the transfer day.

Clinical

Pregnancy

With

TQE

Without

TQE

RR

95% CI

1 available

embryo

7/37

(19%)

11/76

(14%)

1.3

0.6 to 3.1

2-3 available

embryos

61/146

(42%)

40/122

(33%)

1.3

0.9 to 1.8

≥ 4 available

embryos

104/183

(57%)

22/69

(32%)

1.8

1.2 to 2.6