Table 1.
Clinical characteristics of couples participating in IVF-ET and fertile control.
| Aspect | ALL IVF | RIF | SIVF | Unclassified | Fertile control | |
|---|---|---|---|---|---|---|
| N = 496 | N = 283 | N = 161 | N = 52 | N = 385 | ||
| Age of woman | Mean ± SD | 33.67a ± 4.14 | 34.51b,c ± 4.11 | 32.11 ± 3.82 | 34.09 ± 3.91 | 32.81 ± 5.98 |
| Range | 22–46 | 23–46 | 22–41 | 25–45 | 19–68 | |
| Age of partner | Mean ± SD | 35.51d ± 4.89 | 36.27e,f ± 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 (29.23) | 78 (27.57) | 58 (36.02) | 9 (17.31) | N/A |
| Only female factor | 131 (26.41) | 70 (24.73) | 45 (27.95) | 16 (30.77) | N/A | |
| Both factors | 75 (15.13) | 49 (17.31) | 19 (11.80) | 7 (13.46) | N/A | |
| Unknown factor | 145 (29.23) | 86 (30.39) | 39 (24.23) | 20 (38.46) | N/A | |
| Number of IVF-ET | Mean ± SD | 3.37 ± 2.05 | 4.64 ± 1.76 | 1.63 ± 0.71 | 1.62 ± 0.68 | N/A |
| Range | 1–15 | 3–15 | 1–3 | 1–3 | N/A | |
| Number of embryos | Mean ± SD | 3.81 ± 2.55 | 5.33 ± 2.29 | 1.69 ± 0.79 | 1.76 ± 0.65 | N/A |
| Range | 1–19 | 3–19 | 1–5 | 1–3 | N/A | |
Values in bold indicate significant differences. Values in parentheses are in percentages.
IVF-ET, in vitro fertilization embryo transfer; RIF, recurrent implantation failure; SIVF, successful pregnancy after IVF-ET; SD, standard deviation; p, probability.
ALL vs. Fertile: women: ap = 0.0001, partner: dp < 0.0001; RIF vs. Fertile: women: bp < 0.0001, partner: ep < 0.0001; RIF vs. SIVF: women: cp < 0.0001, partner: fp = 0.0001.