Baseline characteristics of subjects according to quartiles of fasting glucose variability assessed by VIM (FPG-VIM)
| N | Total | P value | P for trend | |||
| Q1 | Q2 | Q3 | Q4 | |||
| 41 015 | 41 011 | 41 012 | 41 015 | |||
| Age (years) | 30.82±3.14 | 30.77±3.10 | 30.73±3.08 | 30.66±3.08 | <0.001 | <0.001 |
| Body mass index (kg/m2) | 20.55±2.55 | 20.62±2.60 | 20.66±2.64 | 20.71±2.69 | <0.001 | <0.001 |
| Body weight (kg) | 53.68±7.24 | 53.83±7.38 | 53.90±7.52 | 53.88±7.62 | <0.001 | <0.001 |
| Systolic blood pressure (mm Hg) | 109.18±10.48 | 109.52±10.56 | 109.71±10.47 | 110.22±10.54 | <0.001 | <0.001 |
| Diastolic blood pressure (mm Hg) | 68.67±7.88 | 68.96±7.96 | 69.11±7.89 | 69.48±7.95 | <0.001 | <0.001 |
| Total cholesterol (mg/dL) | 176.83±28.03 | 176.94±28.47 | 176.96±28.70 | 176.72±29.05 | 0.625 | 0.631 |
| Fasting glucose (mg/dL) | 86.05±6.05 | 85.03±6.64 | 85.77±7.41 | 84.62±9.20 | <0.001 | <0.001 |
| Mean FPG (mg/dL) | 85.96±2.68 | 85.87±5.59 | 85.67±5.59 | 85.67±7.10 | <0.001 | <0.001 |
| FPG variability (VIM) | 2.85±0.96 | 5.25±0.59 | 7.48±0.74 | 12.32±4.05 | <0.001 | <0.001 |
| Alcohol consumption (%) | 1032 (2.52) | 1127 (2.75) | 1266 (3.09) | 1334 (3.25) | <0.001 | <0.001 |
| Current smoker (%) | 2074 (5.06) | 2244 (5.47) | 2344 (5.72) | 2491 (6.07) | <0.001 | <0.001 |
| Regular exercise (%) | 744 (1.81) | 749 (1.83) | 803 (1.96) | 829 (2.02) | 0.080 | 0.013 |
| Family history of diabetes (%) | 30 607 (74.62) | 31 799 (77.54) | 32 698 (79.73) | 33 118 (80.75) | <0.001 | <0.001 |
Data are expressed as the means±SD or n (%).
FPG, fasting plasma glucose; VIM, variability independent of the mean.