- Comparisons of serum PAPP-A and free β-hCG levels and birth weight according to the neonatal gender.
| Data* | Female | Male | P-value |
|---|---|---|---|
| PAPP-A (MoM) | 1.07±0.63 | 1.07±0.62 | 0.833† |
| Free β-hCG (MoM) | 1.35±2.07 | 1.12±1.08 | 0.075† |
| Birth weight, grams | 3244.8±417.4 | 3372.5±386.7 | 0.010‡ |
*Mean ± standard deviation. †Mann–Whitney U test. ‡T-Test. PAPP-A: pregnancy-related plasma protein A, β-hCG: free beta-human chorionic gonadotropin, MoM: multiple of median