Association of periodontitis with handgrip strength and skeletal muscle mass in middle-aged US adults from NHANES 2013-2014.

"Declarations Conflict of interestThe authors declare no competing interests financial or otherwise. Ethical approvalThe NHANES 2013–2014 has been approved by the National Center for Health Statistics Research Ethics Review Board (continuation of Protocol #2011–17, ERB). Statement of human and animal rightsThis study does not include any animal studies conducted by the authors and adheres to the guidelines for conducting research involving human participants. Informed consentInformed consent statement of NHANES 2013-2014 can be found under the following link: https://www.cdc.gov/nchs/nhanes/genetics/genetic_participants.htm Conflict of interest The authors declare no competing interests financial or otherwise."

"Funding Open Access funding enabled and organized by Projekt DEAL. This study has not received any external funding or sponsorship."