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Table 3 The relationships between race, IGF1 methylation, and gestational age-adjusted birth weight 1

From: Racial differences in IGF1 methylation and birth weight

 

IGF1 Methylation 2

% change in aBW 3

 

β

95% CI

P value

β

95% CI

P value

Race

      

 Black race

0.62

0.11, 1.12

0.02

−7.45%

−14.44, −0.45

0.04

IGF1 methylation

      

 Methylation z-score

-

-

-

−3.32%

−6.17, −0.47

0.02

Joint effects

      

 Black race

-

-

-

−5.68%

−12.84, 1.49

0.12

 Methylation z-score

-

-

-

−2.70%

−5.63, 0.24

0.07

  1. 1Modeled using standard multivariable linear regression; 2 IGF1 methylation z-score controlled for maternal age; 3gestational age-adjusted birth weight (aBW) controlled for maternal age, parity, and infant gender.