Ankle-brachial index and incident diabetes mellitus: the atherosclerosis risk in communities (ARIC) study.

The associations were attenuated after further adjustment for other potential confounders but remained significant for ABI 0.91–1.00 (HR = 1.17, 95% CI 1.04–1.31) and marginally significant for ABI ≤ 0.90 (HR = 1.19, 0.99–1.43).

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When we further adjusted for other potential confounders including traditional cardiovascular risk factors, white blood cell count, and physical activity (Model 2 in Table 2 ), the associations for all lower ABI categories remained significant although it was borderline significant for ABI ≤ 0.90.

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