Table 2.

Average Nutrition, Hormone, and Menstrual Characteristics for Stable Weight and Weight Gain Groups

	Stable weight (N = 48)	Weight gain (N = 23)
Age of menarche (yr)	13.5 (13.2, 13.8)	13.2 (12.8, 13.6)
Kilocalories*	1749 (1643, 1856)	1682 (1530, 1836)
Calcium (mg/d)*	914 (803, 1025)	872 (705, 1039)
Sports score (grades 6−12)	83 (69, 98)	110 (81, 138)
Serum estradiol*	67.3 (57.0, 77.6)	58.9 (43.3, 74.6)
Serum testosterone*	35.7 (31.2, 40.1)	36.3 (29.5, 43.1)
Cortisol*	23.4 (19.2, 27.7)	23.4(21.4, 25.4)
Estimated VO2max (ml/kg/min)	36.6 (34.7, 38.5)	36.5 (32.9, 40.2)

Values are mean (95% CI).

* Values are averaged from six measurements taken annually from 17 to 22 yr of age.