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Table 1 Baseline characteristics after matching

From: Investigating the impact of SARS-CoV-2 infection on basic semen parameters and in vitro fertilization/intracytoplasmic sperm injection outcomes: a retrospective cohort study

 

Unexposed (n = 148)

Exposed (n = 50)

P value

Male age, yr

33 (30, 39)

33 (31, 37)

0.946

Female age, yr

32 (29, 37)

32 (30, 35)

0.578

Female BMI, kg/m2

21.1 (21.9, 22.4)

21.6 (19.8, 23.8)

0.536

FSH, mIU/mL

7.50 (6.20, 9.10)

7.1 (6.4, 8.9)

0.633

AMH, ng/mL

2.28 (1.03, 4.47)

2.09 (1.36, 3.52)

0.855

AFC

9 (5, 17)

8 (5, 15)

0.896

Infertility type

  

0.688

Primary, %

62.8 (93)

66.0 (33)

 

Secondary, %

37.2 (55)

34.0 (17)

 

Infertility duration, yr

2 (1, 3)

1 (1, 3)

0.512

Infertility causes

  

0.921

Female factors, %

68.9 (102)

70.0 (35)

 

Male factors, %

14.2 (21)

13.6 (6)

 

Both female and male factors, %

16.9 (25)

17.2 (9)

 

No. of ART sessions

1 (1, 2)

1 (1, 2)

0.513

Operation types

  

0.738

IVF, %

54.7 (81)

52.0 (26)

 

ICSI, %

45.3 (67)

48.0 (24)

 

COH protocol

  

0.976

GnRH-agonist, %

32.4 (48)

34.0 (17)

 

GnRH-antagonist, %

48.6 (72)

48.0 (24)

 

Othersa, %

18.9 (28)

18.0 (9)

 

Gn duration, d

10 (9, 11)

10 (8, 11)

0.664

Gn dosage, IU

2400 (1913, 3000)

2550 (1892, 3094)

0.634

Estradiol on HCG day, pg/mL

1827 (1050, 2680)

1709 (1077, 2608)

0.925

Progesterone on HCG day, ng/mL

0.71 (0.43, 1.05)

0.72 (0.32, 1.07)

0.924

Endometrium thickness on HCG day, mm

10.5 (8.7, 13.0)

10.8 (8.9, 12.1)

0.805

  1. Note:
  2. BMI, body mass index; FSH, follicle stimulation hormone; AMH, anti-müllerian hormone; AFC, antral follicle counting; IVF, in vitro fertilization; ICSI, intracytoplasmic sperm injection; COH, controlled ovarian hyperstimulation; GnRH, gonadotrophin releasing hormone; Gn, gonadotropin; HCG, human chorionic gonadotropin
  3. a Others: including mild stimulation and luteal phase stimulation protocols
  4. Continuous variables were presented as median (first quartile, third quartile)
  5. Categorical variables were presented as % (n)
  6. P < 0.05 was considered statistically significant