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Table 4 Multivariable analysis between maternal characteristics, educational variables and birthweight (kg) (N = 763)

From: Academic performance, educational aspiration and birth outcomes among adolescent mothers: a national longitudinal study

  Black (n = 244) Non-black (n = 519)
  Model 1 Model 2 Model 1 Model 2
Baseline age −0.03(0.03) −0.03(0.03) 0.004(0.02) 0.002(0.02)
Age at pregnancy −0.004(0.03) −0.001(0.03) −0.03(0.03) −0.02(0.03)
Baseline BMI category
Underweight 0.17(0.16) 0.14(0.16) −0.15(0.07) −0.15(0.07)
Normal weight ref ref ref ref
Over weight 0.15(0.13) 0.15(0.13) −0.11(0.13) −0.12(0.13)
Obese −0.17(0.35) −0.21(0.37) 0.06(0.11) 0.05(0.11)
Parental education
≥HS ref ref ref ref
Less than HS 0.13(0.08)§ 0.15(0.08)§ −0.07(0.09)§ −0.07(0.10)§
GPA
Below average −0.002(0.14) −0.01(0.14) 0.11(0.07) 0.12(0.07)
Above average ref ref ref ref
Ever skipped a grade
No ref ref ref ref
Yes 0.20(0.10)* 0.22(0.09)* 0.50(0.17)** 0.49(0.17)**
Ever repeated a grade
No ref ref ref ref
Yes −0.09(0.07) −0.11(0.08) −0.08(0.08) −0.08(0.08)
Educational aspiration −0.05(0.05)§ −0.05(0.05)§ 0.08(0.04) 0.08(0.04)
Smoking during pregnancy
No   ref   ref
Yes   0.31(0.13)   −0.03(0.07)§
Initiation of prenatal care
1st trimester   ref   ref
2nd trimester   0.001(0.09)   0.07(0.06)
3rd trimester or no prenatal care   −0.06(0.08)   −0.01(0.13)
  1. *P < 0.05; **P < 0.01; §P for interaction <0.05.
  2. Figures presented are regression coefficients with standard errors.