Table 2.
Prevalence of reduced ankle-brachial index with and without inter-arm difference
| IAD <5 mmHg (n= 1337) | IAD ≥5 mmHg (n= 2013) | P-value | IAD <10 mmHg (n= 2070) | IAD ≥10 mmHg (n= 1280) | P-value | IAD <15 mmHg (n= 2797) | IAD ≥15 mmHg (n= 553) | P-value | |
|---|---|---|---|---|---|---|---|---|---|
| ABI <0.9 n (%) | 822 (61.5) | 1359 (67.5) | <0.001 | 1275 (61.6) | 906 (70.8) | <0.001 | 1781 (63.7) | 400 (72.3) | <0.001 |
| ABI ≤0.85 n (%) | 408 (30.5) | 698 (34.7) | 0.012 | 633 (30.6) | 473 (37.0) | <0.001 | 881 (31.5) | 225 (40.7) | <0.001 |
P-values presented for Pearson χ2 tests. ABI =ankle-brachial pressure index. IAD =inter-arm difference.