Immunosenescence profiles, muscle strength, physical performance and sarcopenia in the Newcaste 85+ Study: code

Data analysis plan and data code (syntax) for the secondary data analysis of the Newcastle 85+ Study data for the manuscript entitled 'Immunosenescence profiles are not associated with muscle strength, physical performance and sarcopenia in very old adults: The Newcastle 85+ Study'. This study reanalyzed data that are publicly available from the Newcastle 85+ Study website at the https://research.ncl.ac.uk/85plus/. The files contain details about how data were processed.