การศกษาความแมนยำเสนรอบวงนอง,แบบสอบถาม SARC-F และ SARC-CalF ตอการคดกรองภาวะมวลกลามเนอนอยในผสงอาย

ABSTRACT Background: Sarcopenia is an aging-related process with substantial impacts on physical capabilities and overall life quality. The Asian Working Group for Sarcopenia (AWGS) 2019 introduced a standardized diagnostic tool primarily applicable in community settings. Additionally, the use of calf circumference (CC), SARC-F (Strength, Assistance in walking, rising from a chair, climbing stairs, and Falls), and SARC-CalF (SARC-F and calf circumference) questionnaires for screening possible sarcopenia cases is recommended, although their accuracy in the context of Thailand remains unstudied. This study evaluated the diagnostic accuracy of these questionnaires in detecting sarcopenia, compared to the standard tool. Design: Cross-sectional diagnostic accuracy study Methods: The 297 Thai elderly participants were evaluated for sarcopenia using the screening tools and the standard diagnostic tool. The investigation encompassed sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), likelihood ratios (LR), accuracy, area under the receiver-operating characteristic curves (AUC ROC curve), and the prevalence of sarcopenia among the participants. Results: The sensitivity, specificity, and AUC were respectively 87.20%, 75.60%, and 0.86 for CC, 10.30%, 98.10%, and 0.66 for SARC-F, and 66.70%, 88.40%, and 0.86 for SARC-CalF. While PPV and LR+ were 35.10% and 3.57 for CC, 44.40% and 5.29 for SARC-F, and 46.40% and 5.73 for SARC-CalF. The prevalence of sarcopenia among participants was 13.10%. Notably, no disparity was observed in the practicality of the SARC-F and SARC-CalF questionnaires between the two groups. Conclusion: According to highest to lowest sensitivity were CC, SARC-CalF, and SARC-F respectively, whereas these tools exhibited high NPV but relatively lower PPV. The study’s prevalence of sarcopenia was relatively modest at 13.10%, primarily among early elderly participants aged 60-69. It was discovered that sarcopenia was correlated with individuals aged over 70. It might be advisable to target a similar age population or conduct further investigations within this age group. Keywords: sarcopenia, screening, calf-circumference, SARC-F, SARC-CalF

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