Table 4.
Risks of Adverse Pregnancy Outcomes*
| Preterm (PT) | Low Birthweight (LBW) | Small-for-Gestation (SGA) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| All | 11.7% | 8.1% | 7.1% | |||||||
| Variable | Categories | % PT | AOR | 95% CI | % LBW | AOR | 95% CI | % SGA | AOR | 95% CI |
| Parity | ≥1 | 10.0% | 1.00 | Reference | 6.4% | 1.00 | Reference | 4.0% | 1.00 | Reference |
| 0 | 12.6% | 1.34 | 1.12, 1.59 | 9.0% | 1.48 | 1.20, 1.83 | 8.7% | 2.17 | 1.69, 2.78 | |
| Diagnoses | Male factor | 12.7% | 0.76 | 0.64, 0.91 | 8.7% | 0.74 | 0.61, 0.91 | |||
| Endometriosis | 7.0% | 0.47 | 0.30, 0.72 | |||||||
| Oocyte Source | Autologous | 11.1% | 1.00 | Reference | ||||||
| Donor | 17.5% | 1.53 | 1.21, 1.94 | |||||||
| Embryo State | Fresh | 11.3% | 1.00 | Reference | 7.8% | 1.00 | Reference | |||
| Thawed | 14.4% | 1.30 | 1.03, 1.63 | 2.3% | 0.31 | 0.19, 0.51 | ||||
| Fetal Heartbeats | One | 11.2% | 1.00 | Reference | 7.7% | 1.00 | Reference | |||
| > One | 17.0% | 1.63 | 1.27, 2.09 | 12.8% | 1.81 | 1.36, 2.39 | ||||
*
Models adjusted for all factors in the table