Variables | Live birth (N = 2643) | No live birth (N = 253) | P |
---|---|---|---|
Age (years) | 28.0(25–30) | 27.5(25–31) | NS |
Body mass index (kg/m2) | 21.9(20.0–24.2) | 22.0(19.9–24.4) | NS |
Basal follicle-stimulating hormone (IU/L) | 5.97(5.09–7.0) | 6.11(5.01–7.15) | NS |
Basal luteinizing hormone (IU/L) | 5.69(4.25–8.16) | 5.50(4.21–7.60) | NS |
Basal antral follicular count (n) | 18(13–24) | 17(11–24) | 0.031 |
Cause of infertility | NS | ||
Male factor | 26.0% (686/2643) | 25.3% (64/253) | |
Tubal disease | 39.0% (1032/2643) | 41.5% (105/253) | |
PCOS | 13.7% (363/2643) | 9.9% (25/253) | |
Endometriosis | 1.3% (33/2643) | 0.8% (2/2530) | |
Unexplained | 20.0% (529/2643) | 22.5% (57/253) | |
Insemination method | NS | ||
IVF | 69.7% (1838/2643) | 67.6% (171/253) | |
ICSI | 30.3% (798/2643) | 32.4% (82/253) | |
Stimulation protocols | NS | ||
Long-acting GnRH-a long protocol | 35.4% (936/2643) | 33.2% (84/253) | |
Short-acting GnRH-a long protocol | 63.5% (1647/2643) | 65.2% (165/253) | |
Unrecorded | 1.1% (33/2643) | 1.6% (4/253) | |
Gonadotropin dosage (IU) | 1537(1237–1987) | 1650(1331–2250) | 0.002 |
Fertilization rate(%) | 0.69(0.57–0.80) | 0.61(0.46–0.73) | 0.000 |
Peak E2 on HCG day (IU/L) | 7276(4991–9484) | 7084(4448–9103)0 | NS |
No. of oocytes retrieved(n) | 20(16–25) | 18(14–21) | 0.000 |