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. 2021 Jun 23;24(3):151–160. doi: 10.1002/ajum.12273

TABLE 3.

Inter‐rater reliability for LM and IL muscle thickness and echogenicity

Muscle Thickness Echogenicity
ICC2,3 95% CI SEM F ICC2,3 95% CI SEM F
LM 0.79 [0.00, 0.95] 0.15 12.35 0.94 [0.75, 0.98] 0.72 20.63
IL 0.00 [0.00, 0.44] 1.27 0.79 0.39 [0.00, 0.82] 5.25 1.74

Abbreviations: CI, confidence interval; F, F‐statistic; ICC, intraclass correlation coefficient; IL, iliocostalis lumborum; LM, lumbar multifidus; SEM, standard error of measurement.