From: The feasibility and reliability of measuring forearm muscle thickness by ultrasound in a geriatric inpatient setting: a cross-sectional pilot study
Intraclass correlation coefficient
Inter-rater reliability
0.873 (95% CI 0.73 to 0.94)
Intra-rater reliability
-Rater A
0.947 (95% CI 0.902 to 0.974)
-Rater B
0.969 (95% CI 0.942 to 0.985)
-Rater C
0.950 (95% CI 0.907 to 0.975)