Table 2.

Subjects demographic and clinical characteristics stratified by gender and ethnicity (n = 150)

Variable	Gender		Ethnicity
	Male (n = 92)	Female (n = 58)	Han (n = 113)	Minority (n = 37)
Age (yr)	72.93 ± 5.86	71.59 ± 5.21	72.37 ± 5.69	72.54 ± 5.55
Height (m)	1.69 ± 0.06a	1.57 ± 0.06	1.64 ± 0.08	1.64 ± 0.09
Weight (kg)	68.99 ± 12.54a	59.14 ± 9.57	63.90 ± 10.99	69.22 ± 15.51a
BMI (kg/m2)	24.25 ± 3.97	23.88 ± 3.65	23.66 ± 3.59	25.48 ± 4.29a
Handgrip (kg)	28.52 ± 9.39a	19.24 ± 6.32	25.26 ± 9.83	23.93 ± 8.29
Muscle mass (kg/m2)	7.51 ± 0.97a	6.08 ± 0.78	6.84 ± 1.04	7.29 ± 1.37a
6-meter gait speed (m)	0.94 ± 0.23	0.87 ± 0.24	0.93 ± 0.25	0.86 ± 0.18

^a P < 0.05.