TABLE 3.

Childhood Levels of Various Characteristics in the Longitudinal Cohort According to Subsequent Age at Menarche

Age at Menarche (Y)Premenarcheal* at Follow-upCorrelation With Menarcheal Age
<11.011.0–11.912.0–12.9≥13.0
Overall
N240427480472439
 Race (% black)50%48%38%38%26%
 Height (cm)124123122120121−0.25§
 Weight (kg)27.025.924.423.223.9−0.28§
 BMI (kg/m2)17.316.716.215.816.1−0.24§
 Triceps skinfold (mm)1514141313−0.20§
White girls
N119221296291326
 Height (cm)123122121120120−0.20§
 Weight (kg)27.325.724.223.523.6−0.24§
 BMI (kg/m2)17.516.816.316.016.1−0.23§
 Triceps skinfold (mm)1615141414−0.20§
Black girls
N121206184181113
 Height (cm)125124123121122−0.26§
 Weight (kg)26.726.224.622.924.5−0.32§
 BMI (kg/m2)16.916.616.115.516.1−0.24§
 Triceps skinfold (mm)1313121111−0.19§
  • * Consists of premenarcheal girls whose final examination was the ages of 10 y and 12.9 y. The 85 girls who were older than 13 y at follow-up and who reported being premenarcheal were included in the “menarche ≥ 13.0 y” category.

  • Spearman correlation coefficient adjusted for race and baseline age; premenarcheal girls have been excluded from these analyses.

  • Mean levels of height, weight, BMI, and triceps skinfold thickness have been adjusted (in linear regression models) for race (in the overall analyses) and baseline age.

  • § P < .001.