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Table 3 Functional assessment in the physical and psychological domains in relation to impaired versus unimpaired CV of the median nerve for both hands

From: Median nerve conduction impairment in patients with diabetes and its impact on patients’ perception of health condition: a quantitative study

  Conduction velocities (mean = m/s)(CV)
  Left hand Right hand
  Unimpaired Impaired P value Unimpaired Impaired P value
  N = 48 N = 23   N = 41 N = 30  
  Mean = 54.5 ± 3.5 m/s Mean = 46.1 ± 2.8 m/s   Mean = 54.1 ± 3.4 m/s Mean = 45.8 ± 2.7 m/s  
AIS 30.8 ± 7.9 28.8 ± 9.2 ns 30.6 ± 7.8 29.6 ± 9.1 ns
CI 95% 28.5-33.1 24.9-32.9   28.2-33.1 26.1-32.9  
HADS-D 4.8 ± 4.7 6.2 ± 4.2 ns 4.6 ± 4.4 6.1 ± 4.9 ns
CI 95% 3.4-6.2 4.4-8.1   3.3-6.0 4.3-8.0  
HADS-A 5.4 ± 5.1 6.2 ± 4.2 ns 5.6 ± 4.7 5.7 ± 5.1 ns
CI 95% 3.9-6.9 4.3-8.0   4.1-7.1 3.9-7.6  
BI 97.0 ± 8.5 94.3 ± 8.8 0.03 96.5 ± 9.0 95.6 ± 8.2 ns
CI 95% 94.5-99.5 90.5-98.1   93.6-99.3 92.6-98.7  
SF-36v2       
PF 45.8 ± 11.8 45.0 ± 12.5 ns 46.6 ± 10.9 44.1 ± 13.4 ns
CI 95% 42.4-49.3 39.6-50.4   43.2-50.1 39.1-49.1  
RP 41.6 ± 12.6 38.3 ± 14.3 ns 41.3 ± 13.2 39.6 ± 12.2 ns
CI 95% 37.9-45.3 32.2-44.6   37.1-45.5 34.6-44.5  
BP 51.9 ± 12.8 43.2 ± 14.6 0.03 49.6 ± 13.8 48.4 ± 14.1 ns
CI 95% 48.3-55.7 36.9-49.5   45.3-54.0 43.1-53.7  
GH 37.6 ± 12.3 30.9 ± 10.1 0.03 36.5 ± 11.7 33.8 ± 12.4 ns
CI 95% 33.9-41.1 26.5-35.3   32.9-40.2 29.2-38.5  
VT 45.9 ± 11.1 46.1 ± 11.7 ns 47.1 ± 9.9 44.5 ± 12.8 ns
CI 95% 42.7-49.1 41.1-51.2   43.9-50.2 39.7-49.3  
SF 44.8 ± 13.5 39.9 ± 14.6 ns 44.9 ± 12.8 41.0 ± 15.4 ns
CI 95% 40.9-48.8 33.6-46.4   40.9-49.1 35.2-46.8  
RE 42.8 ± 12.8 37.3 ± 15.6 ns 41.0 ± 14.4 41.1 ± 13.5 ns
CI 95% 39.1-46.6 30.6-44.0   36.5-45.5 36.1-46.1  
MH 40.7 ± 12.1 36.3 ± 10.3 ns 39.8 ± 12.4 38.6 ± 10.7 ns
CI 95% 37.2-44.3 31.9-40.8   35.9-43.8 34.5-42.6  
SF-36v2 46.1 ± 10.5 42.3 ± 12.0 ns 45.8 ± 10.5 43.4 ± 11.9 ns
PCS CI 95% 43.0-49.1 37.1-47.5   42.6-49.2 38.9-47.9  
SF-36v2 42.1 ± 11.7 37.7 ± 12.4 ns 41.3 ± 12.2 39.9 ± 12.1 ns
MCS CI 95% 38.7-45.6 32.3-43.1   37.4-45.1 35.4-44.4  
QLI       
HFSUB 20.4 ± 4.8 17.7 ± 5.3 0.05 19.9 ± 4.7 18.9 ± 5.6 ns
CI 95% 18.9-21.7 15.4-20.0   18.4-21.4 16.8-21.0  
SOCSUB 21.7 ± 4.1 20.1 ± 3.6 ns 21.6 ± 3.9 20.7 ± 4.1 ns
CI 95% 20.6-22.9 18.5-21.6   20.7-22.8 19.2-22.3  
PSPSUB 22.9 ± 5.0 21.0 ± 4.0 0.05 22.9 ± 4.8 21.4 ± 4.6 ns
CI 95% 21.5-24.4 19.3-22.7   21.4-24.5 19.7-23.1  
FAMSUB 24.8 ± 4.3 24.2 ± 4.3 ns 25.5 ± 4.0 23.4 ± 4.4 0.03
CI 95% 23.6-26.1 22.3-26.1   24.2-26.7 21.8-25.1  
QLI (Total) 21.7 ± 4.1 19.7 ± 4.1 0.05 21.6 ± 3.9 20.4 ± 4.3 ns
CI 95% 20.6-23.0 18.0-21.5   20.4-22.9 18.8-22.0  
  1. Data are presented as means ± SD and CI-confidence interval; the Mann–Whitney U-test was used for group comparisons (impaired vs. unimpaired). P values are expressed if they are <0.05. (AIS) Acceptance of Illness Scale, (HADS) Hospital Anxiety and Depression Scale, (BI) Barthel Index, SF-36v2 = (PF) physical functioning, (SF) social functioning, (RP) physical role functioning, (RE) emotional role functioning, (BP) bodily pain, (GH) general health, (VT) vitality, (MH) mental health, (PCS) physical component summary, (MSC) mental component summary, QLI-Quality of Life Index for Diabetes Version III = HFSUB- health and functioning subscale, SOCSUB- social and economic subscale, PSPSUB- psychological and spiritual subscale, FAMSUB- family subscale, p values are obtained by analyses using Mann–Whitney rank sum test.