Table 1 Baseline characteristics of the study groups
A blood group n = 486 | B blood group n = 673 | AB blood group n = 136 | O blood group n = 784 | Total n = 2079 | P value* | |
|---|---|---|---|---|---|---|
Age (years)a | 31.9 ± 4.4 | 31.9 ± 4.5 | 31.6 ± 3.8 | 31.8 ± 4.5 | 31.9 ± 4.4 | 0.860 |
BMI (kg/m2)a | 25.1 ± 4.1 | 25.3 ± 4.2 | 25.9 ± 4.0 | 25.5 ± 4.1 | 25.4 ± 4.1 | 0.216 |
Infertility n (%) | ||||||
Primary | 366 (75.3) | 487 (72.4) | 111 (81.6) | 582 (74.2) | 1546 (74.4) | 0.145 |
Secondary | 120 (24.7) | 186 (27.6) | 25 (18.4) | 202 (25.8) | 533 (25.6) | |
Protocol, n (%) | ||||||
Antagonist | 253 (52.1) | 318 (47.3) | 71 (52.2) | 380 (48.5) | 1022 (49.1) | 0.378 |
Long | 160 (32.9) | 240 (35.7) | 45 (33.1) | 299 (38.1) | 744 (35.8) | |
Long depot | 40 (8.2) | 55 (8.2) | 12 (8.8) | 49 (6.3) | 156 (7.5) | |
Short | 33 (6.8) | 60 (8.9) | 8 (5.9) | 56 (7.1) | 157 (7.6) | |
Indication, n (%) | ||||||
Tubal | 87 (17.9) | 113 (16.8) | 26 (19.1) | 128 (16.3) | 354 (17.0) | 0.206 |
Ovulation disorder | 59 (12.1) | 67 (10.0) | 15 (11.0) | 63 (8.0) | 204 (9.8) | |
Endometriosis | 61 (12.6) | 6 1(9.1) | 12 (8.8) | 66 (8.4) | 200 (9.6) | |
Male factor | 144 (29.6) | 227 (33.7) | 43 (31.6) | 283 (36.1) | 697 (33.5) | |
Unexplained | 39 (8.0) | 70 (10.4) | 10 (7.4) | 73 (9.3) | 192 (9.2) | |
Combination | 96 (19.8) | 135 (20.1) | 30 (22.1) | 171 (21.8) | 432 (20.8) | |