Table 1.

Nerve conduction study (NCS) results in patients with neuropathy associated with IGT and mild diabetes

NCS parameterIGT neuropathyDiabetic neuropathyAll patients with neuropathyNormal
The number of patients with an abnormal study is displayed in parentheses below the mean ± SEM.
Data expressed as mean ± SEM (no. of patients with an abnormal result).
IGT = impaired glucose tolerance.
Sural sensory amplitude, μV6.3 ± 1.4 (2/6)5.7 ± 1.9 (3/8)6.3 ± 1.3 (5/14)>6.0 μV
Sural sensory conduction velocity, m/sec41.2 ± 2.6 (1/5)41.8 ± 2.9 (2/5)41.5 ± 1.8 (3/10)>41 m/sec
Peroneal motor amplitude, mV4.6 ± 1.0 (1/6)4.6 ± 1.7 (1/5)4.6 ± 0.9 (2/11)>2.0 mV
Peroneal motor conduction velocity, m/sec45.2 ± 1.2 (0/6)39.6 ± 1.6 (2/5)42.6 ± 1.3 (2/11)>41 m/sec
Peroneal minimal F wave latency, msec51.5 ± 1.8 (2/6)49.7 ± 3.2 (1/5)50.7 ± 1.7 (3/11)<55 msec
Percent with an abnormal NCS33%66%57%