Table 1.

Subjects’ demographics.

	All subjects ($n=4610$)	Male ($n=2378$)	Female ($n=2232$)
Age, mean (range)	60(40 to 70)	60 (44 to 70)	60 (40 to 70)
Race, $n$ (%)	—	—	—
White	4354(94.4)	2266(95.3)	2088(93.5)
African American	245(5.3)	109(4.6)	136(6.1)
Others	11(0.2)	3(0.1)	8(0.4)
Height (cm), mean (SD)	169.08 ± 9.52	175.7 ± 6.55	162.03 ± 0.55
Weight (kg), mean (SD)	82.09 ± 18.10	89.94 ± 11.79	73.72 ± 8.85