Table 3.
Relation of an interleg difference in SBP of ≥15 mmHg or DBP of ≥10 mmHg to overall and cardiovascular mortality using the Cox proportional hazards model
| Interleg BP Difference | Overall Mortality | Cardiovascular Mortality | ||
|---|---|---|---|---|
| HR (95% CI) | P | HR (95% CI) | P | |
| Unadjusted | 3.94 (2.11–7.35) | <0.01 | 5.73 (2.40–13.68) | <0.01 |
| Age and sex adjusted | 3.30 (1.76–6.18) | <0.01 | 4.71 (1.96–11.30) | <0.01 |
| Multivariate adjusted model 1 | 3.09 (1.62–5.91) | <0.01 | 4.92 (1.98–12.24) | <0.01 |
| Multivariate adjusted model 2 | 3.36 (1.68–6.72) | <0.01 | 4.84 (1.84–12.71) | <0.01 |
| Multivariate adjusted model 3 | 2.91 (1.28–6.64) | 0.01 | 3.15 (1.05–9.44) | 0.04 |
Multivariate model 1 is adjusted for age, sex, diabetes mellitus, hypertension, coronary artery disease, and cerebrovascular disease. Multivariate model 2 comprises model 1 as well as mean arterial pressure, pulse pressure, albumin, log triglyceride, total cholesterol, hemoglobin, creatinine, phosphorous, calcium-phosphorous product, and log high-sensitivity CRP. Multivariate model 3 comprises model 2 as well as ABI <0.9 and brachial-ankle PWV. HR, hazard ratio; CI, confidence interval; SBP, systolic BP; DBP, diastolic BP; ABI, ankle-brachial index; PWV, pulse wave velocity; CRP, C-reactive protein.