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Skip search results from other journals and go to results- 683 Journal of Medical Internet Research
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For example, Chen et al [23] developed a diagnostic model for sarcopenia based on age, cross-sectional area changes, and shear wave elasticity value changes, yielding an AUC of 0.883. Tang et al [24] developed an ultrasound-derived muscle assessment system based on muscle thickness, handgrip strength, and gait speed. The system had an overall diagnostic sensitivity of 92.7% and a specificity of 91% for sarcopenia.
J Med Internet Res 2025;27:e70545
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Most participants (95.3%, 13,793/14,466) were of Han Chinese ethnicity. The percentage of participants residing in urban areas was 69.7% (10,090/14,466). Overall, 47.1% (6813/14,466) of participants were college graduates or had a higher level of education. The participants spanned all occupation groups.
JMIR Form Res 2025;9:e56028
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