Table 1 Percentage distribution of patient and treatment factors at all ART clinics and those included in the analysis (NASS data, year 2011)
All ART clinics (n = 451) | Included ART clinics (n = 137) | |||
|---|---|---|---|---|
Median | Mode | Median | Mode | |
Patient diagnosis | ||||
Tubal factor | 15% | 12% | 13% | 11% |
Ovulatory dysfunction | 15% | 11% | 12% | 11% |
Diminished Ovarian Reserve | 28% | 32% | 29% | 32% |
Endometriosis | 9% | 5% | 8% | 5% |
Uterine factor | 4% | 0% | 4% | 3% |
Male factor | 36% | 32% | 32% | 26% |
Other factor | 9% | 0% | 12% | 7% |
Unknown factor | 8% | 0% | 9% | 2% |
Female factors only | 10% | 10% | 10% | 8% |
Female and Male factors | 18% | 11% | 15% | 14% |
Treatment factors | ||||
Type of ART Procedural factor (with ICSI) | 72% | 85% | 70% | 94% |
Percentage of Fresh nondonor cycles used a gestational carrier | 0% | 0% | 1% | 1% |
Percentage of Fresh nondonor cycles with PGD performed | 3% | 0% | 4% | 4% |
Percentage of Fresh nondonor cycles with elective single embryo transfers | 4% | 0% | 5% | 2% |
Number of embryos transferred in nondonor oocyte cycles, female age <35 years | 2.0 | 2.0 | 1.9 | 2.0 |
Number of fresh embryos transferred in donor oocyte cycles | 2.0 | 2.0 | 2.0 | 2.0 |