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Table 1 The results of intra- and interrater reliability tests for the displacement and velocity of the swallowing structures

From: STAMPS: development and verification of swallowing kinematic analysis software

Parameter Intrarater reliability Interrater reliability
ICC 95% CI ICC 95% CI
Lower Upper Lower Upper
Hyoid bone, maximal displacement (mm)
 Vertical 0.981 0.924 0.995 0.928 0.710 0.982
 Horizontal 0.990 0.962 0.998 0.972 0.886 0.993
 Two dimensional 0.979 0.914 0.995 0.948 0.790 0.987
Hyoid bone, maximal velocity (mm/s)
 Vertical 0.982 0.926 0.995 0.922 0.686 0.981
 Horizontal 0.990 0.960 0.998 0.984 0.937 0.996
 Two dimensional 0.949 0.796 0.987 0.960 0.839 0.990
Larynx, maximal displacement (mm)
 Vertical 0.959 0.836 0.990 0.860 0.438 0.965
 Horizontal 0.869 0.471 0.967 0.893 0.571 0.974
 Two dimensional 0.947 0.785 0.987 0.965 0.858 0.991
Larynx, maximal velocity (mm/s)
 Vertical 0.939 0.755 0.985 0.809 0.231 0.953
 Horizontal 0.701 − 0.202 0.926 0.666 − 0.346 0.917
 Two dimensional 0.946 0.782 0.987 0.797 0.183 0.950
Arytenoid, maximal displacement (mm)
 Vertical 0.883 0.528 0.971 0.895 0.577 0.974
 Horizontal 0.855 0.418 0.964 0.767 0.060 0.942
 Two dimensional 0.927 0.707 0.982 0.905 0.617 0.976
Epiglottis, maximal tilt angle (degree)
 From the initial position 0.906 0.622 0.977 0.868 0.468 0.967
 From the y axis 0.889 0.554 0.972 0.886 0.539 0.972
Epiglottis, maximal angular velocity (degree/s) 0.554 − 0.795 0.889 0.680 − 0.290 0.920
Upper esophageal sphincter opening, distance (mm) 0.988 0.951 0.997 0.980 0.919 0.995
Liquid bolus, maximal velocity (mm/s) 0.988 0.953 0.997 0.924 0.692 0.981