In the original article, old type of electrodes were incorrectly identified as (NM-990W) instead of (NM-983W). In addition, the average of P-IES in non-diabetic/IFG subjects was incorrect. The correct value is “0.15 ± 0.01.”
A correction has been made in the following places:
The Material and Methods section, subsection P-IES Measurement, paragraph 1:
“For nociceptive stimulation, an IES method was adopted using a disposable concentric bipolar needle electrode (NM-983W; Nihon Kohden Corp., Tokyo, Japan) which was connected to a specific stimulator for cutaneous Aδ and C fibers as previously described (PNS-7000; Nihon Kohden) (15).”
The Abstract, subsection Results:
“P-IES was elevated with increasing of age in women but not in men. Average P-IES (mA) was increased in IFG subjects (n = 55, 0.20 ± 0.03) compared with normoglycemic/non-IFG individuals (n = 894, 0.15 ± 0.01) (p < 0.01). It was comparable between IFG and a group of normal high HbA1c (5.9–6.4%). Univariate linear regression analyses showed no influence of sex, triglyceride, or cholesterol on the value of P-IES. In contrast, there were significant correlations between P-IES and serum HbA1c level (ß = 0.120, p < 0.001) Adjustments for the multiple clinical measurements confirmed positive correlation of P-IES with HbA1c (ß = 0.077, p = 0.046).”
The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.