Association between multidimensional prognostic index (MPI) and infections in a population of older people affected by COVID-19.

"Declarations Conflict of interestOn behalf of all authors, the corresponding author states that there is no conflict of interest. Ethical approvalThe study was approved by the Local Ethical Committee during the session of the 28th April 2021 (number 04/2021), in the context of the COMEPA (COVID-19 Medicina Policlinico Palermo) study. Informed consentOral for hygienic reasons. Statement of human and animal rightsAll procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Conflict of interest On behalf of all authors, the corresponding author states that there is no conflict of interest."

"Funding This research received no external funding."