Table 2.
Adjusted Relative Risk of Autism Spectrum Disorder Associated With Neonatal Serum Magnesium Levels From a Multivariable Discrete Proportional Hazard Regression Model.
| Variable | RR (95% CI) | P |
|---|---|---|
| Serum magnesium, mg/dL | 1.15 (0.86-1.53) | .36 |
| Male | 2.81 (1.78-4.44) | <.0001 |
| 5-minute Apgar score | 0.96 (0.86-1.07) | .45 |
| Birthweight, g | 0.75 (0.51-1.09) | .13 |
| Gestational age, weeks | 0.97 (0.88-1.06) | .49 |
| Race/ethnicity | ||
| White | Reference | |
| Hispanic | 0.60 (0.28-1.31) | .20 |
| Other | 0.62 (0.20-1.99) | .43 |
| Antenatal magnesium administration | 0.79 (0.47-1.34) | .38 |
| Medicaid insurance | 0.94 (0.59-1.50) | .79 |
| Diabetesa | 1.24 (0.68-2.25) | .49 |
Abbreviations: CI, confidence interval; RR, relative risk.
a Includes diabetes mellitus and gestational diabetes.