Table 2.
Clinical characteristics of patients and fertile couples.
| Parameter | IVF | RIF | SIVF | Unclassified | Fertile Control | |
|---|---|---|---|---|---|---|
| Number of women | N = 491 | N = 278 | N = 161 | N = 52 | N = 322 | |
| Age of women | Mean ± SD | 33.65 ± 4.13 | 34.50 ± 4.10 | 32.11 ± 3.82 | 34.09 ± 3.91 | 32.52 ± 5.99 |
| Range | 22–46 | 23–46 | 22–41 | 25–45 | 22–68 | |
| Number of men | N = 491 | N = 278 | N = 161 | N = 52 | N = 322 | |
| Age of men | Mean ± SD | 35.51 ± 4.89 | 36.27 ± 4.85 | 34.32 ± 4.72 | 36.89 ± 4.89 | 34.15 ± 6.3 |
| Range | 24–53 | 25–53 | 24–53 | 28–51 | 25–70 | |
| Indications for IVF-ET (%) | Only male factor | 145 (29.53) | 78 (28.06) | 58 (36.02) | 9 (17.31) | - |
| Only female factor | 129 (26.27) | 68 (24.46) | 45 (27.95) | 16 (30.77) | - | |
| Both factors | 72 (14.67) | 46 (16.55) | 19 (11.80) | 7 (13.46) | - | |
| Unknown factor | 145 (29.53) | 86 (30.93) | 39 (24.23) | 20 (38.46) | - | |
| Number of IVF-ET | Mean ± SD | 3.37 ± 2.06 | 4.65 ± 1.77 | 1.63 ± 0.71 | 1.62 ± 0.68 | - |
| Range | 1–15 | 3–15 | 1–3 | 1–3 | - | |
| Number of embryos | Mean ± SD | 3.81 ± 2.56 | 5.35 ± 2.31 | 1.69 ± 0.79 | 1.76 ± 0.65 | - |
| Range | 1–19 | 3–19 | 1–5 | 1–3 | - | |
IVF-ET—in vitro fertilization embryo transfer, RIF—recurrent implantation failure, SIVF—successful pregnancy after IVF-ET, SD—standard deviation.