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a: Demographics of the 90 volunteered participants.
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|
Age, median (min, max)
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32.5 (14, 78)
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34.0 (15, 75)
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28.0 (21, 66)
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31.0 (14, 78)
|
0.8392
|
|
Female volunteers (n (%))
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8 (27)
|
13 (43)
|
12 (40)
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33 (37)
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0.366
|
|
Volunteers who has called an EMD center previously (n (%))
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12 (40)
|
13 (43)
|
12 (40)
|
37 (41)
|
0.955
|
|
Volunteers with college or university degree (n (%))
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18 (60)
|
18 (60)
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21 (70)
|
57 (63)
|
0.042*
|
|
b: Number of elements correctly registered by EMD operator. When calculating p value the top three alternatives where combined.
|
|
No elements (n (%))
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
0.065
|
|
One element (n (%))
|
5 (17)
|
0 (0)
|
3 (10)
|
8 (9)
| |
|
Two elements (n (%))
|
11 (37)
|
8 (27)
|
6 (20)
|
25 (28)
| |
|
Three elements (n (%))
|
14 (46)
|
22 (73)
|
21 (70)
|
57 (63)
| |
|
c: Sound quality as scored by EMD operator. When calculating p value the top four alternatives where combined.
|
|
Incomprehensible (n (%))
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
0.153
|
|
Very difficult to understand (n (%))
|
0 (0)
|
1 (3)
|
0 (0)
|
1 (1)
| |
|
Somewhat difficult to understand (n (%))
|
0 (0)
|
0 (0)
|
2 (7)
|
2 (2)
| |
|
Fairly easy to understand (n (%))
|
3 (10)
|
5 (17)
|
7 (23)
|
15 (17)
| |
|
Very easy to understand (n (%))
|
27 (90)
|
24 (80)
|
21 (70)
|
72 (80)
| |
|
d: Video quality as scored by EMD operator. When calculating p value the top two alternatives where combined.
|
|
Not able to see instructions executed (n (%))
|
0 (0)
|
1 (3)
|
1 (3)
|
2 (2)
|
<0.001*
|
|
Low (n (%))
|
0 (0)
|
1 (3)
|
8 (27)
|
9 (10)
| |
|
Pretty low (n (%))
|
0 (0)
|
3 (10)
|
13 (43)
|
16 (18)
| |
|
Pretty good (n (%))
|
11 (37)
|
7 (23)
|
8 (27)
|
26 (29)
| |
|
Good (n (%))
|
19 (63)
|
18 (60)
|
0 (0)
|
37 (41)
| |
