Table 3.
Arginine and metabolites in the amniotic fluid as determinants of birth weight, length, and head circumference by multiple linear regression.
| Independent Variables * | Dependent Variables | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Birth Weight (g) (n = 363) |
Birth Length (cm) (n = 275) |
Head Circumference (cm) (n = 239) |
|||||||
| B | 95% CI | p-Value | B | 95% CI | p-Value | B | 95% CI | p-Value | |
| Arginine | 116 | (69, 174) | <0.001 | 0.4 | (0.1, 0.7) | 0.01 | 0.3 | (0.1, 0.4) | 0.003 |
| ADMA | 99 | (50, 147) | <0.001 | 0.3 | (0.1, 0.6) | 0.02 | 0.2 | (−0.03, 0.3) | 0.094 |
| SDMA | 68 | (19, 116) | 0.006 | 0.3 | (0.0, 0.6) | 0.06 | 0.1 | (−0.1, 0.3) | 0.24 |
| Arg/ADMA | 30 | (−18, 79) | 0.22 | 0.04 | (−0.2, 0.3) | 0.79 | 0.2 | (0.0, 0.3) | 0.05 |
| Arg/SDMA | 57 | (9, 105) | 0.02 | 0.07 | (−0.2, 0.4) | 0.64 | 0.2 | (0.01, 0.3) | 0.03 |
* Separate models were used for each amino acid and for the ratios. Each model additionally contained gender, gestational age, and storage period. Amino acids and ratios were categorized as quartiles.