Xiangyu Zhang BS , Rongna Lian MD , Huiyu Tang MD , Shuyue Luo MD , Xiaoyan Chen MD , Jing Lu PhD , Ming Yang MD
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引用次数: 0
Abstract
Objectives
Early detection and diagnosis of sarcopenia remain challenging. Despite significant progress in predictive modeling, there is no comprehensive evaluation of their diagnostic performance and methodologic quality across different modeling approaches and populations. This study aims to systematically evaluate the diagnostic accuracy of prediction models for sarcopenia across different modeling approaches and reference standards.
Design
Systematic review and meta-analysis of diagnostic test accuracy studies.
Setting and Participants
Both men and women at any age and ethnicity with sarcopenia, regardless of comorbidities.
Methods
We systematically searched Ovid MEDLINE, Embase, and Cochrane Central databases until June 2024. Studies developing or validating prediction models for sarcopenia diagnosis were included. We performed a bivariate random-effects meta-analysis and used hierarchical summary receiver operating characteristic models to synthesize diagnostic accuracy data.
Results
Thirteen studies comprising 122,252 participants were included. The prediction models demonstrated robust overall performance in development sets [sensitivity, 82%; 95% CI, 75%-87%; specificity, 84%; 95% CI, 74%-90%; area under curve (AUC), 0.89; 95% CI, 0.86-0.91) and internal validation sets (AUC, 0.86; 95% CI, 0.83-0.89]. In validation sets, traditional statistical models maintained consistent performance (sensitivity, 86%; 95% CI, 80%-91%; specificity, 72%; 95% CI, 67%-77%), whereas machine learning approaches achieved higher specificity (84%; 95% CI, 71%-91%) despite moderate sensitivity (70%; 95% CI, 56%-81%). Only one study conducted external validation, reporting moderate sensitivity (71%; 95% CI, 62%-78%) and excellent specificity (98%; 95% CI, 96%-99%) with an AUC of 0.97.
Conclusions and Implications
Current prediction models show promising diagnostic accuracy for sarcopenia, with different modeling approaches having complementary strengths. However, further research is needed to address the limitations of existing models, including methodologic heterogeneity and limited external validation, before clinical implementation can be recommended.
期刊介绍:
JAMDA, the official journal of AMDA - The Society for Post-Acute and Long-Term Care Medicine, is a leading peer-reviewed publication that offers practical information and research geared towards healthcare professionals in the post-acute and long-term care fields. It is also a valuable resource for policy-makers, organizational leaders, educators, and advocates.
The journal provides essential information for various healthcare professionals such as medical directors, attending physicians, nurses, consultant pharmacists, geriatric psychiatrists, nurse practitioners, physician assistants, physical and occupational therapists, social workers, and others involved in providing, overseeing, and promoting quality