TABLE 1.

Descriptive characteristics

	Mean	sd	25th percentile	Median	50th percentile
Age (yr)
M	15.47	0.27	15.30	15.41	15.56
F	15.49	0.30	15.31	15.43	15.58
Height (cm)
M	174.19	7.44	169.60	174.50	179.00
F	164.60	6.07	160.60	164.50	168.70
LM (kg)
M	49.61	6.56	45.58	49.77	53.82
F	36.94	3.88	34.35	36.66	39.25
FM (kg)
M	10.52	7.15	5.64	8.21	12.80
F	18.39	7.58	13.10	16.99	21.98
BMDC (mg/cm3)
M	1074.76	34.78	1053.14	1077.40	1100.39
F	1124.56	22.96	1111.02	1126.67	1140.06
BAC (mm2)
M	352.77	52.92	317.37	351.75	387.11
F	308.49	40.52	280.69	306.86	334.31
BMCC (mg)
M	327.96	46.37	296.51	327.75	357.62
F	274.37	36.13	249.42	272.73	296.85
PC (mm)
M	76.14	5.34	72.63	75.99	79.50
F	69.37	4.85	66.10	68.99	72.34
EC (mm)
M	40.87	5.83	37.05	40.34	44.10
F	36.87	5.36	33.49	36.24	39.59
CT (mm)
M	5.61	0.69	5.17	5.63	6.07
F	5.17	0.58	4.79	5.18	5.55

Table shows descriptive characteristics for 1851 boys and 2154 girls undergoing pQCT scans. CT, Cortical thickness.