Table 5.
Results of neonatal outcome analysis before and after adjusting for confounders.
| β | Standard error | P | β | Standard error | Adjusted P | |
|---|---|---|---|---|---|---|
| Birth weight, g | ||||||
| ≤1 year | Ref | – | N.A. | Ref | – | NA |
| 1 < group < 6 years | −12.057 | 12.525 | .34 | −116.534 | 110.51 | .29 |
| ≥6 years | 45.474 | 60.876 | .46 | −448.695 | 438.58 | .31 |
| Gestational age, wk | ||||||
| ≤1 year | Ref | – | N.A. | Ref | – | NA |
| 1 < group < 6 years | −0.227 | 0.045 | <.001 | −0.188 | 0.06 | .002 |
| ≥6 years | −0.376 | 0.164 | .02 | −0.207 | 0.209 | .32 |
Adjustment factors: the female age, egg retrieval age, BMI, basal FSH, basal estradiol, basal progesterone, intimal thickness, duration of infertility, infertility type, infertility factors, FET preparation protocol, number of embryos transferred, embryo type; NA: Not applicable.