https://www.selleckchem.com/peptide/box5.html
The diagnostic accuracy for EI to categorize frailty was of 0.69 (95%CI 0.59-0.78, p = .001), with high intra-rater (ICC 0.98, 95%CI 0.98-0.99); p less then .001) and inter-rater (ICC 0.89, 95%CI 0.75-0.95; p less then .001) reliability and low measurement error for both parameters (EI -0.18, LOA95% -10.8 to 10.5; FD 0.00, LOA95% -0.09 to 0.1 in arbitrary units. The ROC curve combining both parameters was not better than EI alone (p = .18). Muscle FD correlated with EI and showed different patterns according to frailty phenotype, with