Table 1 Comparison between the two age groups; group 1 included women < 35 years, and group 2 included women ≥ 35 years
“Group 1” (n = 148) | “Group 2” (n = 70) | P value | |
|---|---|---|---|
Age (years) | 27.82 ± 3.98 | 38.47 ± 2.06 | < 0.001* |
BMI (kg/m2) | 26.57 ± 3.08 | 26.48 ± 3.17 | 0.846 |
Duration of infertility (years) | 4 (3,6) | 4 (3,7) | 0.348 |
Antral follicular count | 12 (8,18) | 7 (5,9.75) | < 0.001* |
Basal FSH (IU/L) | 5.8 (4.8,7.6) | 7.125 (5.3,9.375) | < 0.001* |
Basal E2 (pg/ml) | 42.5 (31,57.5) | 47.5 (37,68.75) | 0.062 |
AMH (ng/ml) | 2.55 (1.515,3.8025) | 1.1 (0.6,1.9) | < 0.001* |
E2 on day of trigger (pg/ml) | 2509 (1603.75,3961.5) | 1500 (964,2091.25) | < 0.001* |
Days of induction | 12 (10.25,13) | 11 (10,12.75) | 0.067 |
No. of induction ampoules | 39 (33,51) | 50 (40,60) | < 0.001* |
No. of obtained follicles | 10 (6,14) | 5 (3,7.75) | < 0.001* |
No. of oocytes retrieved | 8 (5,10) | 4 (2,6) | < 0.001* |
No. of oocytes injected | 5 (4,8) | 3 (2,5) | < 0.001* |
No. of transferred embryos | 3 (2,4) | 2 (2,3) | < 0.001* |
No. of frozen embryos | 0 (0,2) | 0 (0,0) | 0.013* |
Fertilization rate | 614/901 (68.15%) | 200/257 (77.82%) | 0.003* |
Implantation rate | 83/438 (18.95%) | 20/167 (11.98%) | 0.041* |
Clinical pregnancy rate | 57 (38.51%) | 17 (24.29%) | 0.038* |