TABLE 3

Infants Being Breastfed at Wave 1: Regression Coefficients, SEs, CIs, P Values, and Adjusted P Values for Each Predictor and Control Variable for Wave 4 MR Scores (n = 2009)

VariableaB CoefficientSE95% CIPAdjusted Pb
Intercept3.983.02−1.96 to 9.92.19N/A
Child’s age wave 41.640.400.85 to 2.44<.001<.001
Mother’s modified AUDIT-C score wave 1c−0.120.06−0.23 to −0.01.03.22
Child’s birth wt<0.001<0.001−0.001 to −<0.001.12.48
Pregnancy: average d per wk drinking alcohol0.280.19−0.09 to 0.65.14.48
Pregnancy: average No. drinks0.270.25−0.23 to 0.76.30.72
Learning difficulty wave 4−1.721.67−5.10 to 1.66.31.72
Combined family income−0.040.05−0.14 to 0.05.36.73
Mother’s age wave 10.020.02−0.03 to 0.06.44.77
Average daily cigarettes while pregnant−0.050.08−0.20 to 0.10.53.81
Head injury wave 40.931.65−2.40 to 4.25.58.81
Child’s sex−0.080.22−0.52 to 0.36.72.81
Breastfeeding duration<0.001<0.001−<0.001 to <0.001.72.81
Mother’s level of education0.020.08−0.14 to 0.19.77.81
Mother’s average daily cigarettes wave 1d0.010.06−0.10 to 0.13.81.81
  • N/A, not applicable.

  • a VIF <10 for all variables.

  • b Benjamini-Hochberg method.

  • c Unadjusted B = −0.045; SE = 0.05; 95% CI: −0.14 to 0.05; P = .35.

  • d Unadjusted B = −0.02; SE = 0.03; 95% CI: −0.08 to 0.04; P = .49.