TABLE 1.
Basic characteristics of patients in the young and old groups
| Characteristic | ≤37 (n = 46) | ≥ 38 (n = 58) | p value |
|---|---|---|---|
| Age (years) | 34.2 ± 2.2 | 41.2 ± 2.2 | 0.0001 |
| Body mass index (kg/m2) | 22.9 ± 3.7 | 23.1 ± 3.8 | ns |
| Duration of infertility (years) | 3.3 ± 2.1 | 6.0 ± 4.8 | 0.0047 |
| Previous IVF failure (n) | 1.0 ± 1.4 | 2.6 ± 2.4 | ns |
| Types of infertility (%) | |||
| Primary infertility | 25/46 (45.6%) | 31/58 (53.4%) | ns |
| Secondary infertility | 21/46 (45.6%) | 27/58 (46.5%) | ns |
| Basal FSH (IU/L) | 4.7 ± 2.7 | 5.7 ± 4.0 | ns |
| Basal LH (pg/ml) | 4.0 ± 2.4 | 5.2 ± 8.1 | ns |
| Basal E2 (IU/L) | 101.4 ± 83.4 | 97.4 ± 78.6 | ns |
| AMH | 2.4 ± 2.3 | 1.4 ± 1.8 | 0.0496 |
Values presented as mean ± SD or number (%).
Abbreviations: E2, estradiol; FSH, follicle stimulation hormone; IVF, in vitro fertilization; LH, luteinizing hormone.