From: Screening for low bone mass with quantitative ultrasonography in a community without dual-energy X-ray absorptiometry: population-based survey
Age stratum (y)
Men
Women
40–49
87.2 ± 18.0
82.8 ± 15.3
50–59
84.4 ± 18.4
77.2 ± 16.3
60–69
80.9 ± 20.4
66.0 ± 14.8
70–79
76.6 ± 20.9
59.9 ± 15.5
≥80
73.6 ± 19.1
56.2 ± 14.6