Yaofeng Han1,2, Jihui Xue1, Wei Pei1, Ya Fang3. 1. State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiang'an South Road, Xiamen, 361102, China. 2. Center for Aging and Health Research School of Public Health, Xiamen University, Xiamen, China. 3. State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiang'an South Road, Xiamen, 361102, China. fangya@xmu.edu.cn.
Correction to: BMC Geriatr 21,522 (2021)https://doi.org/10.1186/s12877-021-02460-yAfter publication of this article [1], the authors reported that the term 'MMSE' should have read 'Katz', in all 3 occurrences.The original article [1] has been updated.