Correction to: BMC Geriatr 21, 661 (2021)

https://doi.org/10.1186/s12877-021-02615-x

After publication of this article [1], the authors reported that the ORCID IDs for all authors were missing, as well as the second affiliation of Masamichi Hanazato. Moreover, some other, small errors were corrected.

The original article [1] has been updated.