%0 Journal Article %T Prevalence of frailty in 62 countries across the world: A systematic review and meta-analysis of population-level studies %A O'Caoimh, Ronan %A Sezgin, Duygu %A O'Donovan, Mark R. %A Molloy, D. William %A Clegg, Andrew %A Rockwood, Kenneth %A Liew, Aaron %D 2020 %R 10.1093/ageing/afaa219 %J Age and Ageing %2 ISSN: 0002-0729