Journal
OSTEOPOROSIS INTERNATIONAL
Volume 18, Issue 4, Pages 533-541Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00198-006-0276-x
Keywords
broadband ultrasound attenuation; calcaneus; quantitative ultrasound; speed of sound; stiffness index
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Introduction We evaluate reference data to examine whether there are sex-, age-, height-, weight- and BMI-related differences of quantitative ultrasound parameters (QUS) for healthy Chinese children and adolescents. Methods A total of 726 healthy children and adolescents (360 male and 366 female) aged from 10-21 years were examined with a Lunar Achilles Express densitometer. The measurements on the right heel included speed of sound (SOS), broadband ultrasound attenuation (BUA), and a calculated stiffness index (SI). Results Our results found that there were no significant differences for BUA, SOS and SI between males and females, except in the age range of 12 to 13 years. The values of all parameters were significantly higher in the 12-year-old females compared to males, and BUA values were significantly higher in 13-year-old females compared to males. A spurt in QUS parameters were observed at 12 years in females and at 14 years in males. A steady increase of BUA, SOS, and SI was seen with increasing body height and weight in both sexes. Conclusion In conclusion, the present results can be used as reference data for children and adolescents in-China.
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