Table 1. Basic characteristics of all subjects.

	Sample 1 (100 Han Chinese)			Sample 2 (1,627 Han Chinese)
	Men (42)	Women (58)	Total (100)	Men (802)	Women (825)	Total (1,627)
Age (years)	49.67 ± 19.64	55.29 ± 11.82	52. 93 ± 15.75	31.43 ± 11.93	37.46 ± 13.77	34.49 ± 13.24
Height (cm)	171.52 ± 6.49	158.72 ± 6.10	164.10 ± 8.90	170.27 ± 5.96	158.38 ± 5.22	164.25 ± 8.16
Weight (kg)	74.36 ± 16.58	64.35 ± 11.58	68.56 ± 14.68	65.75 ± 9.64	54.63 ± 8.09	60.12 ± 10.48
BMI (kg/m2)	25.14 ± 4.63	25.55 ± 4.44	25.38 ± 4.50	22.66 ± 2.93	21.77 ± 3.05	22.21 ± 3.03

Data are shown as mean ± SD.