Table 3.
Comparison of demographic and clinical characteristics of subjects with relation to cumulative ongoing pregnancy in fresh together with frozen-thawed cycles (n = 170)
| Median (range) | Cumulative ongoing pregnancy | P value | |
|---|---|---|---|
| Yes (n = 78) | No (n = 92) | ||
| Age (years) | 36 (27–41) | 37 (27–44) | 0.010a |
| Serum AMH (pmol/l) | 12.78 (1.50–94.96) | 8.10 (0.14–64.26) | 0.017a |
| Serum FSH (IU/l) | 6.1 (1.7–17.6) | 6.7 (1.6–19.4) | 0.404 |
| Day 6 serum estradiol (pmol/l) | 630 (73–3,171) | 406 (73–4,308) | 0.010a |
| Total dose of gonadotropin administered (IU) | 2,400 (1,000–4,200) | 2,700 (1,000–6,300) | 0.004a |
| Duration of stimulation (days) | 12 (9–19) | 12 (8–21) | 0.073 |
| No. of oocytes retrieved | 9 (2–36) | 6 (0–34) | <0.001a |
| No. of oocytes fertilized | 7 (1–23) | 3 (0–16) | <0.001a |
Subjects not achieving pregnancy and not yet replacing all frozen embryos were excluded in this analysis
aStatistically significant (p < 0.05, Mann-Whitney U test)