Table 1. Characteristics of study subjects N = 9,937.
| Variable | Mean or % | SD |
|---|---|---|
| ERI | 1.2 | 0.5 |
| ERI >1 | 71.1% | |
| Female | 18.2% | |
| Age (Years) | 41.2 | 10.6 |
| RMSSD night (msec) | 41.2 | 22.0 |
| RMSSD day (msec) | 29.1 | 13.6 |
| HbA1c (% [mmol/mol]) | 5.5 [3.7] | 0.5 |
| <6% (<42 mmol/mol) | 92% | |
| 6–<6.5% (42–<48 mmol/mol) | 5.9% | |
| ≥6.5% (≥48 mmol/mol) | 2.1% | |
| FPG (mg/dl) | 86.8 | 13.6 |
| < 80 mg/dl | 22.5% | |
| 80–<100 mg/dl | 69.4% | |
| 100–<126 mg/dl | 6.8% | |
| ≥126 mg/dl | 1.3% | |
| Blue Collar | 67.3% | |
| BMI (kg/m2) | 26.0 | 4.2 |
| Underweight (<18.5) | 1.1% | |
| Normal weight (18.5–<25) | 44.3% | |
| Overweight (25–<30) | 40.2% | |
| Obese (>30) | 14.5% | |
| High sensitive CRP | 1.71 | 3.09 |
| Low (<1.0 mg/L) | 53.5% | |
| Medium (1.0 –<3.0 mg/L) | 32.6% | |
| High (>3.0 mg/L) | 13.9% |