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Table 2 Embryological data and IVF/ICSI outcomes in the endometrioma and control groups

From: The presence of ovarian endometrioma adversely affect ovarian reserve and response to stimulation but not oocyte quality or IVF/ICSI outcomes: a retrospective cohort study

Variable

Before matching

After matching

 

Endometrioma

(OMA)

(n = 154)

Control

(n = 1913)

P value

Endometrioma

(OMA)

(n = 154)

Control

(n = 305)

P value

Embryological data

Number of oocytes retrieved (n)

8.27 ± 6.18

9.99 ± 6.44

0.002

8.27 ± 6.18

10.25 ± 6.97

0.005

OSI

3.23 ± 3.07

4.52 ± 4.06

0.000

3.23 ± 3.07

4.93 ± 4.82

0.000

Number of MII oocytes (n)

6.99 ± 5.41

8.00 ± 5.67

0.034

6.99 ± 5.41

8.33 ± 5.97

0.040

Oocyte maturity rate % (n)

84.57

(1063/1257)

80.11

(15084/18829)

0.000

84.57

(1063/1257)

80.74 (2523/3125)

0.003

Number of fertilized oocytes (n)

6.20 ± 5.04

7.20 ± 5.24

0.025

6.20 ± 5.04

7.45 ± 5.54

0.032

Fertilization rate % (n)

83.30 (943/1132)

84.98 (13562/15959)

0.128

83.30 (943/1132)

85.36

(2256/2643)

0.108

Number of Embryos (n)

6.34 ± 5.10

7.32 ± 5.30

0.028

6.34 ± 5.10

7.47 ± 5.58

0.038

Number of transplantable embryos (n)

5.69 ± 4.78

6.63 ± 4.88

0.022

5.69 ± 4.78

6.72 ± 5.02

0.035

Number of top-quality embryos (n)

2.32 ± 2.48

2.73 ± 2.74

0.078

2.32 ± 2.48

2.82 ± 3.01

0.038

Frozen embryos

2.95 ± 3.31

3.03 ± 3.34

0.773

2.95 ± 3.31

3.16 ± 3.42

0.575

Blastocyst rate % (n)

28.53

(269/943)

27.59 (3742/13562)

0.535

28.53

(269/943)

27.84 (628/2256)

0.692

Type of embryo transfer

Total ET cycles

128 (83.12%)

1831 (97.14%)

0.000

128 (83.12%)

293 (96.07%)

0.000

Fresh ET n (%)

49 (38.28)

884 (48.28)

0.029

49 (38.28)

138 (47.10)

0.094

FET n (%)

79 (61.72)

947 (51.72)

79 (61.72)

155 (52.90)

Stage of embryo transfer

Cleavage (n)

110

1568

0.925

110

231

0.088

Blastocyst (n)

18

263

18

62

Clinical outcomes

CPRs / fresh ET % (n)

55.10 (27/49)

45.14 (399/884)

0.173

55.10 (27/49)

46.37 (64/138)

0.294

CPRs / FET % (n)

53.16 (42/79)

54.20 (510/941)

0.860

53.16 (42/79)

66.45 (103/155)

0.048

LBRs / fresh ET % (n)

48.98 (24/49)

37.00 (327/884)

0.092

48.98 (24/49)

36.96 (51/138)

0.140

LBRs / FET % (n)

48.10 (38/79)

45.38 (427/941)

0.501

48.10 (38/79)

59.35 (92/155)

0.101

Miscarriages % (n)

4.69 (6/128)

7.34 (134/1825)

0.373

4.69 (6/128)

7.17 (21/293)

0.339

ectopic pregnancy % (n)

0.78 (1/128)

1.04 (19/1825)

1.000

0.78 (1/128)

1.02 (3/293)

1.000

Implantation rate % (n)

38.56 (91/236)

34.80 (1196/3437)

0.241

38.56 (91/236)

39.67 (217/547)

0.770

Cumulative CPRs % (n)

59.40 (79/133)

58.12 (981/1688)

0.773

59.40 (79/133)

59.62 (158/265)

0.966

Cumulative LBRs % (n)

55.64 (74/133)

53.26 (899/1688)

0.596

55.64 (74/133)

54.34 (144/265)

0.806

  1. FET, Frozen-thawed ET; MII, Metaphase II; CPRs, Clinical pregnancy rates; LBRs, Live birth rates. Values are presented as n, n (percentage), or the mean ± standard deviation (SD). Dashes indicate no P-value. P-values in bold depict statistical significance (P < 0.05).