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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)