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Longitudinal bidirectional associations among sarcopenia risk, social isolation, and frailty in Chinese older adults using an item response theory-derived frailty index.

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Title: Longitudinal bidirectional associations among sarcopenia risk, social isolation, and frailty in Chinese older adults using an item response theory-derived frailty index.
Authors: Lin HQ; Zhongshan Hospital, Fudan University (Xiamen Branch), Xiamen, Fujian, China.; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China., Lin C; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China., Lin YF; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China., Wang XD; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China., Lin HB; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China., Chen XY; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China., Huang WX; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China., Zhong JL; Zhongshan Hospital, Fudan University (Xiamen Branch), Xiamen, Fujian, China., Fan H; Zhongshan Hospital, Fudan University (Xiamen Branch), Xiamen, Fujian, China., Hong YJ; Zhongshan Hospital, Fudan University (Xiamen Branch), Xiamen, Fujian, China.
Source: Frontiers in public health [Front Public Health] 2026 Jul 08; Vol. 14, pp. 1864444. Date of Electronic Publication: 2026 Jul 08 (Print Publication: 2026).
Publication Type: Journal Article; Observational Study
Journal Info: Publisher: Frontiers Editorial Office Country of Publication: Switzerland NLM ID: 101616579 Publication Model: eCollection Cited Medium: Internet ISSN: 2296-2565 (Electronic) Linking ISSN: 22962565 NLM ISO Abbreviation: Front Public Health Subsets: MEDLINE
Database: MEDLINE Ultimate
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  Data: Longitudinal bidirectional associations among sarcopenia risk, social isolation, and frailty in Chinese older adults using an item response theory-derived frailty index.
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  Data: <searchLink fieldCode="AU" term="%22Lin+HQ%22">Lin HQ</searchLink>; Zhongshan Hospital, Fudan University (Xiamen Branch), Xiamen, Fujian, China.; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China.<br /><searchLink fieldCode="AU" term="%22Lin+C%22">Lin C</searchLink>; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China.<br /><searchLink fieldCode="AU" term="%22Lin+YF%22">Lin YF</searchLink>; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China.<br /><searchLink fieldCode="AU" term="%22Wang+XD%22">Wang XD</searchLink>; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China.<br /><searchLink fieldCode="AU" term="%22Lin+HB%22">Lin HB</searchLink>; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China.<br /><searchLink fieldCode="AU" term="%22Chen+XY%22">Chen XY</searchLink>; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China.<br /><searchLink fieldCode="AU" term="%22Huang+WX%22">Huang WX</searchLink>; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, Fujian, China.<br /><searchLink fieldCode="AU" term="%22Zhong+JL%22">Zhong JL</searchLink>; Zhongshan Hospital, Fudan University (Xiamen Branch), Xiamen, Fujian, China.<br /><searchLink fieldCode="AU" term="%22Fan+H%22">Fan H</searchLink>; Zhongshan Hospital, Fudan University (Xiamen Branch), Xiamen, Fujian, China.<br /><searchLink fieldCode="AU" term="%22Hong+YJ%22">Hong YJ</searchLink>; Zhongshan Hospital, Fudan University (Xiamen Branch), Xiamen, Fujian, China.
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  Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Frontiers+Editorial+Office%22">Frontiers Editorial Office </searchLink><i>Country of Publication: </i>Switzerland <i>NLM ID: </i>101616579 <i>Publication Model: </i>eCollection <i>Cited Medium: </i>Internet <i>ISSN: </i>2296-2565 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%2222962565%22">22962565 </searchLink><i>NLM ISO Abbreviation: </i>Front Public Health <i>Subsets: </i>MEDLINE
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        Value: 10.3389/fpubh.2026.1864444
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              Text: 2026 Jul 08
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