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Table 3 Correlation between serum levels of tumor necrosis factor (TNF-α) and nerve conduction velocity, clinical, and lab. data in type 2 diabetes mellitus

From: Tumor necrosis factor alpha in peripheral neuropathy in type 2 diabetes mellitus

 

Serum level (TNF-α)

Group 1

Group 2

 

R

P value

R

P value

Median nerve (M)

− 0.35

0.008

− 0.650

< 0.001

Ulnar nerve

− 0.51

0.001

− 0.46

0.002

CPN nerve

− 0.23

0.03

− 0.25

0.02

PTN nerve

− 0.20

0.04

− 0.21

0.04

Median nerve(S)

− 0.26

0.01

− 0.36

0.007

Sural nerve

− 0.33

0.004

− 0.22

0.03

Neuropathy disability score

0.829

< 0.001

0.50

0.001

Neuropathy symptom score

0.53

< 0.001

0.38

0.004

HbA1c

0.45

0.002

0.41

0.005

  1. CPN common peroneal nerve, PTN posterior tibial nerve, M motor, S sensory, HbA1c glycosylated hemoglobin, r Pearson’s correlation coefficient
  2. P value < 0.05 significant. P value < 0.001 highly significant. Groups I and II = diabetic PN patients