Table 3 Sonographic cross-sectional area (mean ± SD) of left median nerve

Cartwright [11]

10.4

2.5

20

12.5

1.68

20

Martínez-Payáa Cohort A [22]

8.3

2.6

27

11.17

3.1

46

Martínez-Payáa Cohort B [22]

9.2

2.6

57

11.17

3.1

46

Schreiber 2018 [28]

9.2

1.5

41

11.2

2.3

18

Midpoint of the forearm

Schreiber 2015 [32]

6.9

1.67

70

7.7

1.5

18

Schreiber 2018 [28]

7.4

1.7

41

8.6

1.5

18

Distal one-third of Forearm

Weise [31]

5.8

1.7

37

5.9

1.5

40

At the Wrist

Deilami [19]

5.2

1.0

35

5.6

1.0

35

Schreiber 2015 [32]

9.5

1.77

70

10.4

1.7

18

Total

398

259