Table 2.
HRs and 95% CIs of SCD based on ABI Category
| Event | ABI category | ABI range | HR (95% CI); P value | ||
|---|---|---|---|---|---|
| Model 1 | Model 2 | Model 3 | |||
| SCD | Low | ≤0.90 | 2.27 (1.64–3.14); <0.001 | 1.68 (1.19–2.37); 0.003 | 1.63 (1.15–2.32); 0.006 |
| Borderline | 0.90–1.00 | 1.52 (1.17–1.96); 0.001 | 1.32 (1.01–1.72); 0.044 | 1.24 (0.94–1.63); 0.134 | |
| Normal | 1.00–1.40 | Ref | Ref | Ref | |
| Noncompressible | >1.40 | 1.19 (0.73–1.94); 0.481 | 1.10 (0.64–1.87); 0.733 | 1.15 (0.67–1.97); 0.606 | |
Model 1: adjusted for age, sex, education, race, and field center. Model 2: model 1+CHD, HF, diabetes, BMI, HDL and LDL cholesterols, current alcohol drinking, and current smoking. Model 3: model 2+hypertension, Cornell voltage, and heart rate. ABI indicates ankle–brachial index; BMI, body mass index; CHD, coronary heart disease; HDL, high‐density lipoprotein; HF, heart failure; HR, hazard ratio; LDL, low‐density lipoprotein; and SCD, sudden cardiac death.