Table 1

Characteristics of subjects evaluated for VPT in EDIC 13/14

CharacteristicTotal cohortINTCONV
n1,177599578
Age (years)47 ± 748 ± 747 ± 7*
Men (%)622 (53)307 (51)315 (55)
Duration of diabetes (years)26 ± 526 ± 526 ± 5
A1C (%)7.8 ± 1.27.8 ± 1.27.8 ± 1.2
Height (cm)172 ± 10171 ± 9173 ± 10
BMI (kg/m2)28.2 ± 5.028.4 ± 5.228.0 ± 4.7
Lower extremity ulcers (%)90 (8)37 (6)53 (9)
Definite clinical neuropathy (%)438 (37)201 (34)237 (41)
Abnormal nerve conduction (%)722 (61)324 (54)398 (69)
Confirmed clinical neuropathy (%)353 (30)151 (25)202 (35)
  • Data are means ± SD or n (%). Data are presented for same year in which the VPT test was performed.

  • *P < 0.05;

  • P < 0.01 for treatment group differences by the Wilcoxon rank sum test or contingency χ2 test.

  • ‡Presence of signs and symptoms consistent with distal symmetrical polyneuropathy with abnormal electrodiagnostic tests in at least two of three nerves tested.