Characteristics | Normal glucose, n = 6,463 | Impaired fasting glucose, n = 297 | Diabetes, n = 267 | p Value^{*} |
---|---|---|---|---|

Values are mean ± SD or n (%). | ||||

* p Values for categorical data are from chi-square tests except for history of stroke, which is from Fisher exact test due to small cell counts; p values for the continuous variables age and BMI are from analysis of variance, and all other p values for the continuous variables are from a Kruskal-Wallis test due to skewness. | ||||

GDS = Geriatric Depression Scale. | ||||

Age, y | 66.1 ± 7.1 | 68.0 ± 6.8 | 68.4 ± 6.1 | <0.001 |

Education, y | 11.9 ± 3.8 | 11.0 ± 3.7 | 10.7 ± 4.3 | <0.001 |

Current smoker | 1,133 (17.8) | 46 (15.7) | 39 (14.8) | 0.318 |

White | 6,278 (97.1) | 286 (96.3) | 242 (90.6) | <0.001 |

History of myocardial infarction | 131 (2.0) | 7 (2.4) | 12 (4.5) | 0.023 |

History of stroke | 30 (0.5) | 2 (0.7) | 2 (0.8) | 0.461 |

GDS score ≥ 6 | 142 (4.4) | 10 (9.8) | 11 (8.6) | 0.004 |

Past hormone replacement therapy | 1,877 (29.1) | 77 (25.9) | 62 (23.4) | 0.071 |

Body mass index (BMI), kg/m^{2} | 25.1 ± 3.9 | 26.7 ± 4.2 | 27.4 ± 4.9 | <0.001 |

Fasting blood glucose, mmol/L | 5.0 ± 0.4 | 6.4 ± 0.2 | 8.48 ± 2.7 | <0.001 |