Table 4 The effect of the relevant significant variables on clinical outcomes

Maternal age at ET^a

0.71 (0.46–1.10)

0.125

0.94 (0.42- 2.12)

0.884

0.84 (0.50–1.42)

0.523

Maternal age at ART start^a

1.18 (0.77–1.82)

0.448

1.44 (0.65–3.15)

0.368

0.97 (0.58–1.64)

0.914

AMH^a

0.81 (0.41–1.63)

0.561

0.78 (0.17–3.47)

0.739

0.98 (0.44–2.17)

0.955

Strategy^b

0.478

0.036*

0.022*

Fresh IVF

1

1

1

Accumulated vitrified M-II

0.80 (0.44–1.48)

0.478

4.00 (1.10–14.58)

0.036*

0.42 (0.20–0.89)

0.022*

Number of Embryos transferred^b

 < 0.001*

0.327

0.013*

1

1

1

1

2

4.23 (1.80–9.97)

0.001*

0.00 (0.00-Inf)

0.99

3.40 (1.41–8.18)

0.006*

3

6.48 (2.67–15.72)

 < 0.001*

0.00 (0.00-Inf)

0.99

3.19 (1.25–8.10)

0.015*

4

9.07 (3.30–24.91)

 < 0.001*

0.00 (0.00-Inf)

0.99

5.94 (1.99–17.71)

0.001*