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Table 2 ICC between the two clinical raters, as well as ICC between the average of the clinical raters and the algorithm based on IMUs on the feet and the algorithm based on IMUs on the shins

From: Measuring freezing of gait during daily-life: an open-source, wearable sensors approach

Video # of detected episodes ICC (2,1)- CI # of detected episodes ICC (2,1)- CI # of detected episodes ICC (2,1)- CI
Rater 1 vs Rater 2 Rater 1 Rater 2 Very Short episodes (< 1 s) Rater 1 Rater 2 Short episodes (2 to 5 s) Rater 1 Rater 2 Long episodes (> 5 s)
Walk 2-min ST 7 45 0.396 (− 0.210 to 0.698) 35 31 0.892 (0.795 to 0.943) 13 9 0.848 (0.707 to 0.921)
Walk 1-min DT 3 25 0.346 (− 0.375 to 0.689) 13 30 0.743 (0.492 to 0.870) 8 10 0.929 (0.857 to 0.964)
Overall 10 70 0.390 (− 0.005 to 0.629) 48 61 0.839 (0.746 to 0.899) 21 19 0.875 (0.801 to 0.922)
Wearable sensors on feet # of detected episodes ICC (2,1)- CI # of detected episodes ICC (2,1)- CI # of detected episodes ICC (2,1)- CI
Algorithm vs Raters Algorithm Raters Very Short episodes (< 1 s) Algorithm Raters Short episodes (2 to 5 s) Algorithm Raters Long episodes (> 5 s)
Walk 2-min ST 71 26 0.474 (0.025 to 0.718) 36 33 0.915 (0.841 to 0.955) 7 11 0.872 (0.761 to 0.932)
Walk 1-min DT 57 14 0.355 (− 0.161 to 0.658) 12 22 0.387 (− 0.171 to 0.683) 6 9 0.932 (0.865 to 0.966)
Overall 128 40 0.431 (0.018 to 0.662) 48 55 0.818 (0.714 to 0.884) 13 20 0.895 (0.833 to 0.934)
Wearable sensors on shins # of detected episodes ICC (2,1)- CI # of detected episodes ICC (2,1)- CI # of detected episodes ICC (2,1)- CI
Algorithm vs Raters Algorithm Raters Very Short episodes (< 1 s) Algorithm Raters Short episodes (2 to 5 s) Algorithm Raters Long episodes (> 5 s)
Walk 2-min ST 94 26 0.374 (− 0.175 to 0.666) 24 33 0.703 (0.443 to 0.842) 4 11 0.688 (0.414 to 0.833)
Walk 1-min DT 49 14 − 0.176 (− 1.306 to 0.400) 20 22 0.619 (0.252 to 0.806) 4 9 0.814 (0.636 to 0.905)
Overall 143 40 0.304 (− 0.095 to 0.558) 44 55 0.672 (0.485 to 0.792) 8 20 0.744 (0.597 to 0.837)