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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