Skip to main content

Table 1 Subgroups baseline characteristics and outcomes

From: Discontinuation of rLH two days before hCG may increase the number of oocytes retrieved in IVF

Baseline characteristics

Group 1

(N = 42)

Group 2

(N = 14)

p-val

Age

37.0

37.5

0.7181

Max FSH (mIU/mL)

9.32

8.75

0.5451

AFC (2-10 mm)

10.98

10.50

0.4681

#/% co-flares

22(52.4%)

6(42.9%)

0.5372

#/% cancelled

12(28.6%)

3(21.4%)

0.7363

Patients who proceeded to egg retrieval

(N = 30)

(N = 11)

p-val

Length of stimulation (days)

10.4

11.2

0.1661

Daily FSH dose (IU)

395

426

0.3811

Daily rLH dose (IU)

97

119

0.0381**

Peak E2 (pg/mL)

1892

1629

0.3221

Peak P4 (ng/mL)

1.21

0.88

0.0991

Outcomes

Group 1

Group 2

p-val

Midsize follicular growth (mm/day)

0.96

0.78

0.4141

Oocytes retrieved

11.4

7.6

0.0411**

Number of MIIs

8.7

4.7

0.0191**

Number of 2PNs

6.8

3.5

0.0061**

Number of Grade 1 embryos

1.23

1.36

0.8171

Embryos for cryopreservation

1.1

0.5

0.4501

Positive βhCG/cycle start

27.5%

33.3%

0.7263

Clinical pregnancy/cycle start

25.0%

25.0%

1.0003

  1. Group 1 (had rLH discontinued at least two days prior to hCG trigger) and Group 2 (had rLH continued throughout stimulation)
  2. 1Unpaired two tailed t-test, 2Chi-sqare analysis, 3Fisher's exact test
  3. **Significant assuming α = 0.05