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Table 2 Demographic data, laboratory characteristics, and neurophysiological studies of T2DM group I with DPN and group II without DPN

From: Serum 25(OH) vitamin D level and its relation to diabetic peripheral neuropathy in Egyptian patients with type 2 diabetes mellitus

Group variables

T2DM group I

No = 40

Mean ± SD

T2DM group II

No = 20

Mean ± SD

t test/χ2

p value

Age (years)

47.85 ± 3.14

44.90 ± 3.54

3.287

0.002

Sex

0.857

0.355

 Females

25 (62.5%)

10 (50.0%)

 Males

15 (37.5%)

10 (50.0%)

DM duration (years)

10.87 ± 4.53

4.02 ± 3.88

5.783

0.000

FBG (mg/dl)

201.65 ± 75.18

131.65 ± 46.46

3.807

0.000

2hpp (mg/dl)

264.38 ± 81.11

177.70 ± 44.05

4.450

0.000

HbA1c %

8.31 ± 1.45

6.83 ± 1.65

3.541

0.001

Type of DPN

 Painless

18(45%)

 Painful

22(55%)

NDS

  

 Mild

12 (30%)

 Moderate

7 (17.5%)

 Severe

21(52%)

Median motor nerve cv (m/s)

42.78 ± 8.72

59.05 ± 5.12

− 7.690

0.000

Median motor nerve amp (mv)

3.75 ± 1.61

6.23 ± 0.93

− 6.350

0.000

Peroneal motor nerve cv

31.85 ± 4.68

44.70 ± 4.43

− 10.200

0.000

Peroneal motor nerve amplitude

1.30 ± 0.40

3.34 ± 0.60

− 15.60

0.000

Median sensory nerve cv

31.68 ± 5.20

43.65 ± 3.99

− 9.046

0.000

Median sensory nerve amplitude (uv)

9.42 ± 4.940

24.70 ± 7.48

− 9.470

0.000

Sural sensory nerve cv

30.43 ± 6.17

42.50 ± 2.82

− 8.300

0.000

Sural sensory nerve amplitude

1.07 ± 0.42

5.43 ± 0.95

− 24.647

0.000

  1. NDS neuropathy disability scale, CV conduction velocity