HbA_{1c} tertiles
. | HbA_{1c} ≤ 7.8% (n = 13)
. | HbA_{1c} 7.9%–8.3% (n = 11)
. | HbA_{1c} ≥ 8.4% (n = 15)
. |
---|---|---|---|

Sensory sural NCV in 1982 | 51 m/s (4) | 49 m/s (5) | 47 m/s (7) |

Sensory sural NCV in 1990 | 45 m/s (5) | 43 m/s (5) | 39 m/s (7) |

Sensory sural NCV in 1999 | 44 m/s (10) | 44 m/s (11) | 34 m/s (15)^{†} |

Number of patients with undetectable sural NCV in 1999 | 1 | 1 | 5 |

Sensory sural NAPA in 1982 | 7.7 μV (5) | 8.3 μV (3) | 7.5 μV (3) |

Sensory sural NAPA in 1990 | 8.3 μV (4) | 6.7 μV (2) | 5.9 μV (4) |

Sensory sural NAPA in 1999 | 9.8 μV (9) | 4.8 μV (4)^{*} | 3.4 μV (4)^{†} |

Motor tibial NCV in 1982 | 48 m/s (5) | 46 m/s (5) | 47 m/s (7) |

Motor tibial NCV in 1990 | 42 m/s (3) | 43 m/s (4) | 38 m/s (5) |

Motor tibial NCV in 1999 | 43 m/s (6)^{*} | 43 m/s (4) | 31 m/s (11)^{†} |

Number of patients with undetectable tibial NCV in 1999 | 0 | 0 | 4 |

Tibial NAPA in 1999 | 4.9 mV (3) | 4.9 mV (2) | 2.6 mV |

Motor peroneal NCV in 1982 | 44 m/s (4) | 46 m/s (4) | 41 m/s (4) |

Motor peroneal NCV in 1990 | 42 m/s (2) | 44 m/s (4) | 38 m/s (5) |

Motor peroneal NCV in 1999 | 41 m/s (4) | 42 m/s (4) | 35 m/s (8)^{*} |

Number of patients with undetectable peroneal NCV in 1999 | 0 | 0 | 1 |

NAPA peroneal nerve in 1999 | 2.7 mV (1) | 2.9 mV (1) | 1.7 mV (1) |

HbA_{1c} tertiles
. | HbA_{1c} ≤ 7.8% (n = 13)
. | HbA_{1c} 7.9%–8.3% (n = 11)
. | HbA_{1c} ≥ 8.4% (n = 15)
. |
---|---|---|---|

Sensory sural NCV in 1982 | 51 m/s (4) | 49 m/s (5) | 47 m/s (7) |

Sensory sural NCV in 1990 | 45 m/s (5) | 43 m/s (5) | 39 m/s (7) |

Sensory sural NCV in 1999 | 44 m/s (10) | 44 m/s (11) | 34 m/s (15)^{†} |

Number of patients with undetectable sural NCV in 1999 | 1 | 1 | 5 |

Sensory sural NAPA in 1982 | 7.7 μV (5) | 8.3 μV (3) | 7.5 μV (3) |

Sensory sural NAPA in 1990 | 8.3 μV (4) | 6.7 μV (2) | 5.9 μV (4) |

Sensory sural NAPA in 1999 | 9.8 μV (9) | 4.8 μV (4)^{*} | 3.4 μV (4)^{†} |

Motor tibial NCV in 1982 | 48 m/s (5) | 46 m/s (5) | 47 m/s (7) |

Motor tibial NCV in 1990 | 42 m/s (3) | 43 m/s (4) | 38 m/s (5) |

Motor tibial NCV in 1999 | 43 m/s (6)^{*} | 43 m/s (4) | 31 m/s (11)^{†} |

Number of patients with undetectable tibial NCV in 1999 | 0 | 0 | 4 |

Tibial NAPA in 1999 | 4.9 mV (3) | 4.9 mV (2) | 2.6 mV |

Motor peroneal NCV in 1982 | 44 m/s (4) | 46 m/s (4) | 41 m/s (4) |

Motor peroneal NCV in 1990 | 42 m/s (2) | 44 m/s (4) | 38 m/s (5) |

Motor peroneal NCV in 1999 | 41 m/s (4) | 42 m/s (4) | 35 m/s (8)^{*} |

Number of patients with undetectable peroneal NCV in 1999 | 0 | 0 | 1 |

NAPA peroneal nerve in 1999 | 2.7 mV (1) | 2.9 mV (1) | 1.7 mV (1) |

Data are means ± 1 SD.

*

*P* < 0.05;

†

*P* < 0.01.

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