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. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: Pediatr Neurol. 2016 Mar 3;59:41–46. doi: 10.1016/j.pediatrneurol.2016.02.012

Table 3.

Multivariable model relating the epilepsy/motor composite outcome to neonatal magnesium concentrations organized into tertiles, and to covariates. The first two rows in the table provides the relative risk of the epilepsy/motor composite associated with the second and third neonatal magnesium tertiles compared to the lowest/first magnesium tertile. RR, relative risk ratio; LCL and UCL, 95% lower and upper confidence levels.

Parameter RR LCL UCL p value
Serum Mg (mg/dL, 1st Tertile is referent)
 2nd Tertile 0.83 0.51 1.3 0.43
 3rd Tertile 0.80 0.48 1.3 0.39
Maternal Mg administration (yes) 1.1 0.68 1.7 0.75
Maternal Steroid administration (yes) 0.87 0.80 0.95 0.0025
Apgar Score, 5′ (continuous) 1.6 1.0 2.4 0.032
Neonatal infection (yes) 1.1 0.67 1.7 0.80
Vasopressor Requirement (yes) 0.99 0.98 1.0 0.14
Gestational Age (days, continuous) 0.63 0.44 0.89 0.0088
Birth weight (standardized, continuous) 0.60 0.40 0.91 0.016