Table 2.
Simple risk score system for diabetic cardiovascular autonomic neuropathy in the exploratory set.
| Variable | β | P value | OR (95%CI) | Risk score* |
|---|---|---|---|---|
| Age (year) | ||||
| ≤50 years | 0.000 | – | 1.00 | 0 |
| 50–65 years | 0.452 | 0.006 | 1.57 (1.14–2.17) | 2 |
| ≥66 years | 0.912 | <0.001 | 2.48 (1.80–3.43) | 4 |
| BMI (kg/m2) | ||||
| ≤30.0 kg/m2 | 0.000 | – | 1.00 | 0 |
| >30.0 kg/m2 | 0.750 | 0.018 | 2.12 (1.14–3.95) | 3 |
| Diabetes duration | ||||
| <1 year | 0.000 | – | 1.00 | 0 |
| 1–9 years | 0.492 | 0.001 | 1.78 (1.26–2.51) | 2 |
| 10–19 years | 0.971 | <0.001 | 2.64 (2.16–3.22) | 4 |
| ≥20 years | 1.525 | <0.001 | 4.60 (3.76–5.16) | 6 |
| Heart Rate (beats/min) | ||||
| ≤63 bpm | 0.000 | – | 1.00 | 0 |
| 64–76 bpm | 1.039 | <0.001 | 2.83 (2.82–3.50) | 4 |
| 77–84 bpm | 1.891 | <0.001 | 6.23 (5.35–8.20) | 8 |
| ≥85 bpm | 2.836 | <0.001 | 17.06 (13.77–21.12) | 12 |
*
For each significant variable in the multiple logistic regression analysis, a risk score was calculated from the regression coefficients (β) dividing by a common factor (0.226) and rounding to the nearest integer.