Table II. Table II. — Demographic information.
| Letrozole only (SD) | Gonadotropins only (SD) | Significance testing1 | |
| Patients | 21 | 42 | |
| Cases (oocyte retrievals) | 21 | 54 | |
| Transfers | 19 | 53 | |
| Cancellation rate (%) | 2/21 (9.5%) | 1/54 (1.9%) | 0.188 |
| Age | 30.9 (4.0) | 32.0 (3.5) | 0.267 |
| BMI | 24.2 (4.7) | 26.9 (6.6) | 0.1 |
| Years infertile | 2.5 (1.9) | 3.0 (2.0) | 0.346 |
| # PCOS (%) | 17/21 (80.9%) | 29/42 (69%) | 0.38 |
| # male factor (%) | 12/21 (57.1%) | 28/42 (66.7%) | 0.58 |
1Using the unpaired Fisher exact test and the unpaired t-test, as appropriate.