Table 1.
Demographic characteristics before and after matching
| Before matching | After matching | |||||
|---|---|---|---|---|---|---|
| Variables | Day 3 | Day 5 | Day 3 | Day 5 | ||
| N=3172 | N=955 | p-val | N=577 | N=577 | p-val | |
| Age (years) | 32.89 ±3.57 | 31.61 ±3.60 | <0.001 | 31.77 ±3.63 | 31.76 ±3.62 | 0.98 |
| BMI (kg/m2) | 21.78 ±3.14 | 22.09 ±3.53 | 0.02 | 22.20 ±3.27 | 22.11 ±3.51 | 0.64 |
| Azoospermia (%) | 3.6 | 1.9 | 0.01 | 2.8 | 2.3 | 0.71 |
| PCOS (%) | 0.7 | 2.8 | <0.001 | 1.7 | 2.1 | 0.83 |
| ICSI/IVF | 1 | 2 | <0.001 | 2 | 2 | 0.05 |
| AMH (ng/ml) | 1.87 ±2.51 | 4.35 ±4.04 | <0.001 | 3.73 ±3.34 | 3.77 ±3.63 | 0.83 |
| Gonal-F (%) | 99.3 | 97.0 | <0.001 | 97.2 | 97.6 | 0.85 |
| Menotropin/rLH (%) | 57.7 | 27.5 | <0.001 | 27.0 | 29.6 | 0.36 |
| Peak E2 (pg/ml) | 1492.3 ±1059.9 | 3216.3 ±1685.0 | <0.001 | 2488.8 ±1559.9 | 2512.9 ±1186.7 | 0.77 |
| Total sperm count (/ml) | 34.46 ±30.70 | 32.69 ±31.19 | 0.12 | 29.74 ±30.42 | 32.09 ±31.04 | 0.19 |
| Sperm motility (%) | 46.5 | 44.4 | 0.10 | 42.2 | 44.3 | 0.31 |
| Normal sperm morphology (%) | 7.2 | 6.6 | 0.05 | 6.0 | 6.2 | 0.64 |
| Left duct | 3 | 3 | 0.05 | 3 | 3 | 0.84 |
| Right duct | 3 | 3 | 0.007 | 3 | 3 | 0.43 |
| No. follicles | 11.96 ±9.47 | 21.89 ±9.47 | <0.001 | 18.62 ±17.30 | 18.39 ±7.34 | 0.35 |
| Day of trigger | 12.14 | 11.97 | 0.21 | 12.02 | 12.07 | 0.79 |
| No. oocytes retrieved | 11.17 ±6.73 | 20.42 ±9.40 | <0.001 | 17.34 ±7.77 | 17.13 ±7.37 | 0.39 |
| No. mature oocytes | 8.97 ±5.51 | 17.08 ±8.09 | <0.001 | 14.36 ±6.36 | 14.14 ±6.19 | 0.32 |
| No. embryos transferred | 3.69 ±1.63 | 3.62 ±1.50 | 0.29 | 3.84 ±1.30 | 3.65 ±1.57 | 0.10 |
| No. embryos frozen | 0.51 ±1.43 | 2.24 ±3.37 | <0.001 | 1.50 ±2.34 | 1.64 ±2.77 | 0.046 |
| No. gestational sacs | 0.70 ±1.04 | 0.84 ±1.16 | <0.001 | 0.78 ±1.07 | 0.85 ±1.19 | 0.20 |
| No. fetal heartbeats | 0.65 ±1.07 | 0.75 ±1.14 | 0.001 | 0.72 ±1.04 | 0.76 ±1.16 | 0.37 |
| Live Birth (%) | 32.1 | 34.2 | 0.23 | 36.6 | 33.6 | 0.32 |
For continuous and count variables, means ± SDs were presented.
BMI body mass index;
PCOS Polycystic ovary syndrome;
ICSI/IVF 0 (cycle with only IVF embryos), 1 (cycle with only ICSI embryos), 2 (cycle mixed with both IVF and ICSI embroys);
AMH Anti-Mullerian hormone;
Gonal-F follitropin alfa;
E2 Estradiol;
Left duct/ right duct 1 (undecided), 2 (remove), 3 (patent), 4 (sticking), 5 (ligation), 6 (obstructed);
Live birth 0 (No live birth delivery), 1 (one or more than 1 live birth delivery)