Variables | Group1 | Group2 | Group3 | Group4 | P value |
---|---|---|---|---|---|
(N = 785) | (N = 3476) | (N = 3345) | (N = 949) | ||
Age (years) | 34.42 ± 6.02 | 31.32 ± 5.00 | 30.4 ± 4.53 | 30.09 ± 4.34 | < 0.01 |
Duration of infertility (years) | 4.35 ± 4.05 | 3.91 ± 3.16 | 3.95 ± 3.01 | 3.81 ± 2.79 | 0.00159 |
Clinical protocol | < 0.01 | ||||
Long agonist protocol | 224 (28.5%) | 1877 (54.0%) | 1973 (59%) | 570 (60.1%) | |
Short agonist protocol | 140 (17.8%) | 837(24.1%) | 589 (17.6%) | 121 (12.8%) | |
Prolonged agonist protocol | 64 (8.2%) | 352 (10.1%) | 548 (16.4%) | 198 (20.9%) | |
Other | 357 (45.5%) | 410 (11.8%) | 235 (7.0%) | 60 (6.3%) | |
Embryo transferred | 0.65 ± 0.88 | 1.13 ± 0.92 | 1.21 ± 0.90 | 1.18 ± 0.91 | < 0.01 |
Progesterone(ng/ml) | 1.08 ± 2.34 | 1.05 ± 0.63 | 1.03 ± 0.48 | 1.01 ± 0.41 | 0.261 |
Clinical pregnancy | 96 (12.2%) | 1071 (30.8%) | 1250 (37.4%) | 384 (40.5%) | < 0.01 |