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Table 3 Subanalyses of different BMI patients on obstetric and perinatal outcomes after programmed FET versus tNC-FET

From: Adverse obstetric and perinatal outcomes in 2333 singleton pregnancies conceived after different endometrial preparation protocols: a retrospective study in China

Parameter

tNC-FET

Programmed FET

Programmed FET vs. tNC-FET

Adjusted OR (95% CI)

%(n/)

%(n/)

Crude OR (95% CI)

PIH

 A(n = 1257)

2.7%(27/1010)

2.4%(6/247)

0.91(0.37–2.22)

0.70(0.19–2.61)

 B(n = 503)

7.0%(27/387)

6.0%(7/116)

0.86(0.36–2.02)

1.15(0.36–3.72)

 C(n = 573)

6.2%(24/386)

14.4%(27/187)

2.55(1.424–4.548)*

4.712(1.77–12.54)*

Placenta previa

 A(n = 1257)

0.9%(9/1010)

1.2%(3/247)

1.37(0.37–5.09)

1.298(0.24–7.10)

 B(n = 503)

1.3%(5/387)

1.7%(2/116)

1.34(0.26–7.00)

–

 C(n = 573)

0.8%(3/386)

0.0%(0/187)

–

–

GDM

 A(n = 1257)

7.5%(76/1010)

6.5%(16/247)

0.85(0.49–1.49)

1.107(0.54–2.26)

 B(n = 503)

9.8%(38/387)

6.0%(7/116)

0.59(0.26–1.36)

0.731(0.22–2.39)

 C(n = 573)

14.0%(54/386)

9.1%(17/187)

0.62(0.35–1.09)

0.838(0.38–1.83)

PPROM

 A(n = 1257)

2.6%(26/1010)

1.2%(3/247)

0.47(0.14–1.55)

0.365(0.05–2.88)

 B(n = 503)

1.8%(7/387)

1.7%(2/116)

0.95(0.20–4.65)

1.845(0.14–4.41)

 C(n = 573)

2.8%(11/386)

3.2%(6/187)

1.13(0.41–3.10)

3.345(0.74–12.48)

Cesarean section

 A(n = 1257)

63.3%(639/1010)

64.4%(159/247)

1.05(0.79–1.40)

0.932(0.63–1.38)

 B(n = 503)

71.1%(275/387)

80.2%(93/116)

1.65(0.99–2.73)

2.268(0.84–4.75)

 C(n = 573)

77.2%(298/386)

79.7%(149/187)

1.16(0.76–1.78)

0.717(0.39–1.31)

Preterm birth

 A(n = 1257)

8.5%(86/1010)

11.3%(28/247)

1.37(0.88–2.16)

1.35(0.69–2.64)

 B(n = 503)

10.1%(39/387)

12.1%(14/116)

1.23(0.64–2.34)

2.31(0.86–6.18)

 C(n = 573)

10.6%(41/386)

12.8%(24/187)

1.24(0.72–2.12)

2.54(1.16–5.53)*

Low birth weight (< 2500 g)

 A(n = 1257)

5.3%(54/1010)

8.9%(22/247)

1.73(1.03–2.90)*

1.467(0.69–3.13)

 B(n = 503)

5.7%(22/387)

5.2%(6/116)

0.901(0.36–2.29)

2.585(0.70–9,57)

 C(n = 573)

4.9%(19/386)

9.1%(17/187)

1.93(0.98–3.81)

2.806(1.10–7.18)*

Macrosomia (> 4500 g)

 A(n = 1257)

8.0%(81/1010)

6.1%(15/247)

0.74(0.41–1.31)

0.68(0.31–1.51)

 B(n = 503)

11.4%(44/387)

18.1%(21/116)

1.72(0.98–3.04)

1.86(0.79–4.40)

 C(n = 573)

13.5%(52/386)

15.0%(28/187)

1.13(0.69–1.86)

1.03(0.50–2.11)

  1. *P < 0.05 (adjusted for maternal age, infertility duration, cause of infertility, endometrial thickness and high-quality embryo transfer rate); − None data because of the small amount of subjects