Table 2—

Anthropometric and physiological characteristics by birth weight quartile

Birth weight quartile
*P
1234
n
 Boys35384051
 Girls36403323
 Black2014128
 White51646166
Birth data
 Birthweight (g)2,730 ± 293,266 ± 283,635 ± 294,087 ± 29
 Birth length (cm)49.9 ± 0.351.4 ± 0.352.8 ± 0.354.4 ± 0.3
 Ponderal index (kg/m3/1000)22.1 ± 0.424.4 ± 0.424.9 ± 0.425.6 ± 0.4
Adolescent data
 Age at clinic (years)14.8 ± 1.215.0 ± 1.315.0 ± 1.315.0 ± 1.2
 Height (cm)167.4 ± 0.8168.2 ± 0.7170.6 ± 0.8173.7 ± 0.8<0.0001
 Weight (kg)66.8 ± 1.963.2 ± 1.870.11 ± 1.872.6 ± 1.90.004
 LBM (kg)43.6 ± 0.844.3 ± .845.4 ± 0.946.3 ± 0.90.02
 Fat mass (kg)23.2 ± 1.919.0 ± 1.824.7 ± 1.926.3 ± 1.80.09
 BMI (kg/m2)23.7 ± 0.622.3 ± 0.524.1 ± 0.624.1 ± 0.60.3
 Lean mass index (kg/m2)15.5 ± .315.6 ± 0.215.5 ± 0.315.3 ± 0.30.6
 Fat mass index (kg/m2)8.2 ± 0.66.7 ± 0.68.6 ± 0.68.7 ± 0.60.2
 Waist circumference (cm)80.6 ± 1.577.2 ± 1.481.1 ± 1.581.8 ± 1.50.2
 Subscapular skinfold (mm)17.6 ± 1.214.4 ± 1.117.7 ± 1.118.6 ± 1.20.2
 Systolic BP (sitting)109.1 ± 0.9107.2 ± 0.9109.2 ± 0.9109.5 ± 0.90.4
 Diastolic BP (sitting)56.2 ± 1.656.1 ± 1.656.4 ± 1.658.2 ± 1.60.4
 HDL-C (mmol/l)1.1 ± 0.031.2 ± 0.031.1 ± 0.031.1 ± 0.030.2
 Triglyceride (mmol/l)0.93 ± 0.060.94 ± 0.060.98 ± 0.061.02 ± 0.060.7
 LDL-C (mmol/l)2.3 ± 0.082.2 ± 0.072.1 ± 0.082.2 ± 0.080.5
  • Data are means ± SE unless otherwise indicated. Birth data are unadjusted. Data measured during adolescence are adjusted by linear regression for age, Tanner stage, sex, ethnicity, and screening blood pressure strata, except for age, which is adjusted for Tanner stage, sex, ethnicity, and screening blood pressure strata. BP, blood pressure.

  • *

    * P for the linear trend across the four categories of birth weight.