Background: Quantitative ultrasound (QUS), developed in the 1990's, is a non-invasive method to evaluate the bone mass and predict the risk of fracture with the advantage of Simple operability and portability. Asian Osteoporosis self-assessment tool (OSTA) is an simple and effective assessment method for Asian osteoporosis. QUS and OSTA can be used as an effective tool to screening osteoporosis. DXA scan according to the screening result of QUS and OSTA can get the accurate Epidemiological findings of osteoporosis with a good economical benefit.
Method: We test the bone mass of 314 45 years of age or older women in Guangzhou community by Calcaneal quantitative ultrasound instrument and get the informations of age, BMI by questionnaire. Base on the screening standard suggested Nan-ping Yang(with the sensitivity of 84% and specificity of 61%), we considered the one whose OSTA≤?1 or QUS-T≤?2.5 to be a Suspected patients with osteoporosis.
Result: in this research, 102 of 314 Subjects were up to the standard of OSTA≤?1 or QUS-T≤?2.5, and we speculated the osteoporosis morbidity is (32.48%) in Guangzhou. 161 of 314 Subjects (51.27%) is found QUS-T≤?1.0, which means lower bone glue and 44 of them is found QUS-T≤?2.5. 91 of 314 Subjects (28.98%) is found OSTA≤?1, which prompt high risk of osteoporosis. According to the result of this screening standard, the morbidity in 45-55 years-old group is 0%, in 56?65 years-old group is 10.00%, in 66?75 years-old group is 36.17%, in 76?85 years-old group is 72.58% and in the 86 years of age or older group is 100%.
Conclusion: this research found that the osteoporosis morbidity in the elderly of Guangzhou community maybe a little higher. With the analysis by synthesis of QUS and OSTA can screening patients at high risk of developing osteoporosis effectively.
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