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Table 3 Characteristics of patients in Subgroup A1 and Subgroup A2

From: The effect of large follicle puncture and aspiration on the outcomes of IVF-ET in patients with asynchronized follicles under the long GnRH-a protocol: a retrospective cohort study

Variables

Subgroup A1(n = 33)

Subgroup A2(n = 47)

P-value

Age (years)

33.58 ± 3.84

33.02 ± 4.86

0.587

Body mass index (kg/m2)

23.57 ± 2.92

23.19 ± 2.54

0.541

Duration of infertility (years)

3.76 ± 3.28

3.21 ± 2.04

0.363

Types of infertility (n, %)

 Primary infertility

11/33 (33.3%)

20/47 (42.6%)

0.405

 Secondary infertility

22/33 (66.7%)

27/47 (57.4%)

Insemination method (n, %)

 IVF

27/33 (81.8%)

39/47 (83.0%)

0.893

 ICSI

6/33 (18.2%)

8/47 (17.0%)

 Basal FSH (mIU/ml)

4.66 ± 2.59

3.95 ± 1.60

0.136

 Basal LH (mIU/ml)

2.12 ± 1.00

1.93 ± 0.72

0.311

 Basal E2 (pg/ml)

27.00 ± 11.24

25.34 ± 14.90

0.590

 AFC

15.24 ± 5.24

16.74 ± 8.42

0.367

 Gn dosage (IU)

2433.71 ± 359.98

2246.49 ± 389.04

0.032

 Gn usage time (days)

13.12 ± 2.06

11.79 ± 1.77

0.003

 Diameter differences between dominant follicles and secondary follicles (mm)

4.53 ± 1.39

4.03 ± 1.02

0.068

  1. Data are presented as mean ± SD for continuous variables and n (%) for categorical variables. All P values were assessed with the use of student’s t-test or χ2
  2. BMI body mass index, FSH follicle-stimulating hormone, LH luteinizing hormone, E2 estradiol, AFC antral follicle count