Table 2

The measured CSAs of the control, idiopathic, diabetic and DPN groups
Control hands (n = 32) Idiopathic CTS hands (n = 38) Diabetic CTS hands (n = 38) DPN CTS hands (n = 16) p value1 p value2 p value3
i4 12.6 ± 3.0 (12.0, 6.0-19.0) 17.5 ± 6.4 (16.5, 8.0-39.0) 20.4 ± 5.4 (19.5, 13.0-34.0) 20.9 ± 13.8(15.5, 8.4-62.0) 0.015* 0.109 0.000*
i3 12.2 ± 2.9 (12.0, 6.0-19.0) 16.3 ± 5.8 (15.5, 8.0-33.0) 19.3 ± 5.5 (19.0, 10.0-31.0) 19.0 ± 9.1 (15.5, 8.4-43.0) 0.015* 0.310 0.000*
i2 11.5 ± 2.5 (11.0, 7.0-18.0) 12.5 ± 3.7 (12.0, 6.0-29.0) 14.2 ± 3.9 (13.5, 9.0-24.0) 13.6 ± 5.9 (11.5, 9.0-34.0) 0.026* 0.242 0.010*
i1 10.8 ± 2.1 (10.2, 7.0-17.0) 14.0 ± 4.8 (13.0, 8.0-28.0) 15.5 ± 4.4 (14.8, 7.7-26.1) 12.7 ± 3.1 (13.0, 7.0-21.0) 0.105 0.043* 0.000*
w 11.8 ± 2.6 (11.0, 8.0-19.0) 16.2 ± 4.5 (15.0,11.0-31.0) 17.9 ± 6.6 (16.0, 8.1-45.8) 14.8 ± 4.7 (13.5, 8.0-28.0) 0.217 0.039* 0.000*
o1 10.6 ± 2.4 (10.0, 6.0-16.0) 14.0 ± 3.7 (13.4, 8.0-23.0) 15.4 ± 5.9 (14.0, 7.0-42.8) 14.3 ± 5.5 (13.0, 7.0-30.0) 0.237 0.458 0.000*
o2 11.0 ± 2.6 (10.5, 7.0-17.0) 12.2 ± 2.6 (12.0, 8.0-19.5) 13.8 ± 4.0 (13.0, 8.6-29.0) 12.8 ± 5.3 (12.5, 7.4-29.0) 0.090 0.181 0.006*
o3 10.0 ± 2.4 (9.5, 7.0-15.0) 10.8 ± 2.2 (10.4, 6.0-16.0) 12.4 ± 3.5 (11.7, 7.0-20.0) 12.2 ± 4.0 (10.5, 8.7-25.0) 0.060 0.601 0.017*

CTS = carpal tunnel syndrome; CSA = cross-sectional area; DPN = diabetic polyneuropathy.

The data shown are mean ± standard deviation (SD) (median, range).

Unit of CSA = mm2.

i4, i3, i2, i1, w, o1, o2, and o3 = the 8 points marked.

p value1= a comparison between the idiopathic and the diabetic CTS hands using the Mann–Whitney U test.

p value2= a comparison between the diabetic and the DPN CTS hands using the Mann–Whitney U test.

p value3= a comparison among control, idiopathic CTS, the diabetic and the DPN CTS hands using the Kruskal-Wallis test.

* = p < 0.05.

Chen et al.

Chen et al. BMC Medical Imaging 2012 12:15   doi:10.1186/1471-2342-12-15

Open Data