Table 1. Basic characteristics of the study subjects.

	Discovery Sample (Caucasian)			Replication Sample (Chinese)
	Total	Male	Female	Total	Male	Female
No. of subjects	2,286	558	1,728	1,627	802	825
Age	51.37 (13.75)	50.71 (16.05)	51.59 (12.92)	34.49 (13.24)	31.43 (7.97)	37.46 (13.77)
Height (cm)	164.81 (43.03)	171.66 (70.64)	162.61 (28.65)	164.25 (8.16)	170.27 (5.96)	158.38 (5.22)
Weight (kg)	73.86 (42.67)	83.23 (67.08)	70.83 (30.33)	65.72 (9.61)	65.74 (9.64)	54.63 (8.09)
FBM (kg)	19.34 (5.65)	20.67 (9.30)	20.92 (13.20)	14.01 (2.54)	11.86 (5.10)	16.13 (4.90)
ALM (kg)	22.58 (2.68)	29.92 (4.84)	20.22 (3.54)	19.79 (1.94)	23.95 (3.20)	15.74 (2.10)

Note: The numbers within parentheses are standard deviation (SD).