When expert agreement replaces evidence: The rise of Delphi consensus in geriatrics.
Coelho-Júnior Hélio José, Marzetti Emanuele·Ageing research reviews
Expert consensus is intended to guide clinical reasoning when evidence is scarce. In contemporary geriatrics, however, the Delphi method is increasingly used where data are not absent but abundant. Sarcopenia and frailty exemplify this dilemma. Repeated consensus statements have redefined diagnostic criteria and thresh…