Methods Calcaneal parameters were measured by lunar Achilles QUS in 3018 normal Nanjing subjects, aged 20 to 89 (1120 men, 1898 women) years.

• 方法采用美国Lunar·Achilles跟骨定量超声仪,对南京地区3018名20-89岁健康人(男1120人、女1898人)行跟骨定量超声参数测量。