From: The sensitivity of median versus ulnar palmar mixed nerve study in the early diagnosis of carpal tunnel syndrome
MDSL cut-off
Hands
2 abnormal tests
3 abnormal tests
4 abnormal tests
< 3.7
142
100%
82.6%
67.6%
< 3.6
121
85.1%
70.2%
54.5%
< 3.5
102
72.5%
57.8%
42.1%
< 3.4
70
30%
18.6%
< 3.3
52
26.9%
15.4%
9.6%
< 3.2
29
17.2%
6.9%
3.4%
< 3.1
20
10%
5%
2%