Unadjusted baseline participant characteristics by fasting plasma glucose quartile for men (n=636)*
| Quartile 1 (70–91 mg/dL) | Quartile 2 (91–97 mg/dL) | Quartile 3 (97–103 mg/dL) | Quartile 4 (103–336 mg/dL) | p Value | |
|---|---|---|---|---|---|
| N | 159 | 158 | 160 | 159 | |
| Age (years) | 71.8 (12.6) | 69.9 (10.6) | 70.7 (11.2) | 71.9 (9.6) | 0.32 |
| Race | |||||
| Caucasian (%) | 84 | 86 | 83 | 88 | 0.58 |
| Education | |||||
| More than high school (%) | 88 | 87 | 84 | 86 | 0.47 |
| Height (m) | 1.8 (0.07) | 1.7 (0.07) | 1.8 (0.06) | 1.7 (0.07) | 0.53 |
| Weight (kg) | 76.7 (10.6) | 79.3 (12.9) | 81.1 (10.9) | 85.0 (14.4) | <0.001 |
| Peripheral neuropathy (%) | 13 | 9 | 15 | 13 | 0.40 |
| Exercise ≥3 times/week (%) | 77 | 79 | 76 | 70 | 0.28 |
| Chronic disease (%)† | 60 | 45 | 50 | 63 | 0.004 |
| Fasting glucose (mg/dL) | 87 (3.7) | 94 (1.4) | 99 (1.7) | 117 (27.3) | <0.001 |
| 2 h glucose (mg/dL) | 117 (33.2) | 129 (37.7) | 134 (36.3) | 174 (66.0) | <0.001 |
| Grip strength (kg) | 37.1 (9.0) | 38.2 (7.9) | 37.4 (8.5) | 36.7 (8.7) | 0.50 |
*Means (SD) are shown for continuous variables.
†The presence of at least one chronic disease: cancer (excluding non-melanoma skin cancer), lung surgery or emphysema, myocardial infarction or angina, hypertension, osteoporosis, arthritis, or stroke.